Publications

W. W. Howard, C. E. Thornton and R. M. Buehrer, "Timely Target Tracking in Cognitive Radar Networks," 2023 IEEE Radar Conference (RadarConf23), San Antonio, TX, USA, 2023, pp. 1-6, doi: 10.1109/RadarConf2351548.2023.10149692.

C. E. Thornton and R. M. Buehrer, "When is Cognitive Radar Beneficial? Insights from Dynamic Spectrum Access," 2023 IEEE Radar Conference (RadarConf23), San Antonio, TX, USA, 2023, pp. 1-6, doi: 10.1109/RadarConf2351548.2023.10149461.

D. -R. Emenonye, A. Pradhan, H. S. Dhillon and R. M. Buehrer, "OTFS Enabled RIS- Aided Localization: Fundamental Limits and Potential Drawbacks," 2023 IEEE/ION Position, Location and Navigation Symposium (PLANS), Monterey, CA, USA, 2023, pp. 344-353, doi: 10.1109/PLANS53410.2023.10140033.

H. K. Dureppagari, D. -R. Emenonye, H. S. Dhillon and R. M. Buehrer, "UAV-Aided Indoor Localization of Emergency Response Personnel," 2023 IEEE/ION Position, Location and Navigation Symposium (PLANS), Monterey, CA, USA, 2023, pp. 1241-1249, doi: 10.1109/PLANS53410.2023.10139944.

W. W. Howard and R. M. Buehrer, "Hybrid Cognition for Target Tracking in Cognitive Radar Networks," in IEEE Transactions on Radar Systems, vol. 1, pp. 118-131, 2023, doi: 10.1109/TRS.2023.3282846.

R. M. Buehrer and S. W. Ellingson, "Weight Selection for Pattern Control of Paraboloidal Reflector Antennas with Reconfigurable Rim Scattering," 2023 IEEE Aerospace Conference, Big Sky, MT, USA, 2023, pp. 1-8, doi: 10.1109/AERO55745.2023.10115669.

W. W. Howard, A. F. Martone and R. M. Buehrer, "Distributed Online Learning for Coexistence in Cognitive Radar Networks," in IEEE Transactions on Aerospace and Electronic Systems, vol. 59, no. 2, pp. 1202-1216, April 2023, doi: 10.1109/TAES.2022.3198038.

W. W. Howard and R. M. Buehrer, "Decentralized Bandits with Feedback for Cognitive Radar Networks," MILCOM 2022 - 2022 IEEE Military Communications Conference (MILCOM), Rockville, MD, USA, 2022, pp. 717-722, doi: 10.1109/MILCOM55135.2022.10017685.

W.W. Howard, A.F. Martone, and R.M. Buehrer, ``Distributed Online Learning for Coexistance in Cognitive Radar Networks,'' IEEE Transactions on Aerospace and Electronic Systems, to appear, 2022.

J. Yu, P. Wang, T. Koike-Akino, Y. Wang, P. V. Orlik and R. M. Buehrer, "Multi-Band Wi-Fi Sensing with Matched Feature Granularity," IEEE Internet of Things Journal, 2022, doi: 10.1109/JIOT.2022.3190826.

M. O. Moore, R. M. Buehrer and W. C. Headley, ``Decoupling RNN Training and Testing Observation Intervals for Spectrum Sensing Applications,'' Sensors, 2022, 22(13), Special Issue on Radio Frequency Machine Learning (RFML) Applications. 4706; https://doi.org/10.3390/s22134706.

C.E. Thornton, R.M. Buehrer, H.S. Dhillon, and A.F. Martone, ``Universal Learning Waveform Selection Strategies for Adaptive Target Tracking,''  IEEE Transactions on Aerospace and Electronic Systems, to appear, 2022.

A. Sarker, D.R. Emenonye, A. Kelliher, T. Rikakis, R. M. Buehrer, A. Asbeck, “Capturing Upper Body Kinematics and Localization with Low-cost Sensors for Rehabilitation Applications," Sensors 2022 , 22 , 2300. https://doi.org/10.3390/s22062300.

D.R. Emenonye, C. Dietrich, and R.M. Buehrer, ``Differential Modulation in Massive MIMO With Low-Resolution ADCs,'' IEEE Transactions on Wireless Communications, vol. 21, No. 6, pp. 4482-4496, June 2022, DOI: 10.1109/TWC.2021.3130499

C. E. Thornton, R. M. Buehrer, and A. F. Martone, ``Constrained Contextual Bandit Learning for Adaptive Radar Waveform Selection,'' IEEE Transactions on Aerospace and Electronic Systems, vol. 58, no. 2, pp. 1133-1148, April 2022,  Digital Object Identifier: 10.1109/TAES.2021.3109110.

C.E. O’Lone, H.S. Dhillon, and R.M. Buehrer, ``Characterizing the First-Arriving Multipath Component in 5G Millimeter Wave Networks: TOA, AOA, and Non-Line-of-Sight Bias'',  IEEE Transactions on Wireless Communications, vol. 21, no. 3, pp. 1602 - 1620, March 2022, Digital Object Identifier: 10.1109/TWC.2021.3105641.

S. Shebert, M.G. Amin, B.H. Kirk,  and R.M. Buehrer, ``Multi-Signal Classification Using Deep Learning and Sparse Arrays,'' 2022 IEEE Military Communications Conference (MILCOM ’22), November 2022.

C.E. Thornton and R.M. Buehrer, ``Linear Jamming Bandits: Sample-Efficient Learning for Non-Coherent Digital Jamming,'' 2022 IEEE Military Communications Conference (MILCOM ’22), November 2022.

R.M. Buehrer and S.W. Ellingson, "Pattern Control for Reflector Antennas Using Electronically-Reconfigurable Rim Scattering", 2022 IEEE Antennas and  Propagation Symposium, July 2022. (DOI pending)

W.H. Howard , A.F. Martone, and R.M. Buehrer, ``Adversarial Multi-Player Bandits for Cognitive Radar Networks'', 2022 IEEE Radar Conference, New York, NY, March 21-25, 2022.

C.E. Thornton, R.M. Buehrer,  and A.F. Martone, ``Online Meta-Learning for Scene-Diverse Waveform-Agile Radar Target Tracking,'' 2022 IEEE Radar Conference, New York, NY, March 21-25, 2022.

B. K. Chalise, D. Wong, M. G. Amin, R. M. Buehrer, A. Martone, B. Kirk, K. Sherbondy, ``Sparsity-Based Distributed DoA Estimation for Radar Networks'', 2022 IEEE Radar Conference, New York, NY, March 21-25, 2022.

A. F. Martone, J. A. Kovarskiy, C. E. Thornton, B. H. Kirk, J. W. Owen, B. Ravenscroft, A. Egbert, A. Goad, R. M. Buehrer, R. M. Narayanan, S. Blunt, C. Baylis, and K. D. Sherbondy, "Closing the Loop on Cognitive Radar for Spectrum Sharing", IEEE Aerospace and Electronic Systems Magazine, vol. 36, no. 9, pp. 44-55, September 2021, Digital Object Identifier: 10.1109/MAES.2021.3072698.

S. R. Zekavat, R. M. Buehrer, G. D. Durgin, L. Lovisolo, Z. Wang, S.T. Goh, and A. Ghasem, “An Overview of Position Location: Past, Present, Future,” International Journal of Wireless Information Networks, vol. 28, pp. 45–76, March 2021,  Digital Object Identifier: 10.1007/s10776-021-00504-z.

L.J. Wong, W. H. Clark IV, B. Flowers, R. M. Buehrer, A. J. Michaels, and W. C. Headley, ``An RFML Ecosystem: Considerations for the Application of Deep Learning to Spectrum Situational Awareness,'' IEEE Open Journal of the Communications Society, vol. 2, pp. 2243-2264, 2021, doi: 10.1109/OJCOMS.2021.3112939.

S. R. Shebert, A. F. Martone and R. M. Buehrer, "Wireless Standard Classification Using Convolutional Neural Networks," 2021 IEEE Global Communications Conference (GLOBECOM), 2021, pp. 1-6, doi: 10.1109/GLOBECOM46510.2021.9685799.

C.T. Fredieu, R.M. Buehrer and A. F. Martone, ``Open-set Classification of Common Waveforms Using A Deep Feed-forward Network and Binary Isolation Forest Models,'' 2022 IEEE Wireless Communications and Networking Conference (WCNC 2022), December 2021.

W.H. Howard and R.M. Buehrer, ``Multi-Target Localization Using Polarization Sensitive Arrays,'' 2021 IEEE Military Communications Conference (MILCOM2021), October 2, 2021.

C.E. Thornton, R.M. Buehrer, and A.F. Martone, ``Waveform Selection for Radar Tracking in Target Channels With Memory via Universal Learning,'' 2021 IEEE Military Communications Conference (MILCOM2021), October 2, 2021.  Received Vanu Bose Best Paper Award.

S. Shebert, A.F. Martone, and R.M. Buehrer, ``Open Set Wireless Standard Classification Using Convolutional Neural Networks,'' 2021 IEEE Military Communications Conference (MILCOM2021), October 2, 2021.

J. Yu, Y. Xu, H. Saad, and R.M. Buehrer, ``Predicting Bit Error Rate from Meta Information Using Random Forests and Partial Data Augmentation,'' SoutheastCon 2021, Feb. 2021.

J. Yu, W. Howard, D. Tait, and R.M. Buehrer, ``Direction-of-Arrival Estimation With A Vector Sensor Using Deep Neural Networks,'' 2021 IEEE Spring Vehicular Technology Conference, Spring, 2021.

C.E. Thornton, R.M. Buehrer and A.F. Martone, ``Constrained Online Learning to Mitigate Distortion Effects in Pulse-Agile Cognitive Radar'', 2021 IEEE Radar Conference, May 10-14, 2021.

W.H. Howard, C.E. Thornton, R.M. Buehrer and A.F. Martone, ``Multi-Player Bandits for Distributed Cognitive Radar'', 2021 IEEE Radar Conference, May 10-14, 2021.

C.E. Thornton, M. Kozy, A. F. Martone, K. Sherbondy, and R.M. Buehrer, ``Deep Reinforcement Learning Control for Radar Detection and Tracking in Congested Spectral Environments,'' IEEE Transactions on Cognitive Communications and Networking, Vol. 6, No. 4,  pp. 1335-1349, December 2020, Digital Object Identifier: 10.1109/TCCN.2020.3019605.

E. Selvi, R.M. Buehrer, A. Martone, and K. Sherbondy, ``Reinforcement Learning For Adaptable Bandwidth Tracking Radars,'' IEEE Transactions on Aerospace and Electronic Systems, Vol. 56, No. 5, pp. 3904-3921, October 2020. Digital Object Identifier: 10.1109/TAES.2020.2987443.

Y. Xu, J. Yu, and R.M. Buehrer, ``The Application of Deep Reinforcement Learning to Distributed Spectrum Access in Dynamic Heterogeneous Environments with Partial Observations,'' IEEE Transactions on Wireless Communications, vol. 19, no. 7, pp. 4494-4506, July 2020.

R. Shahanaghi, R.M. Buehrer, and Y. Yang, ``Stochastic Link Modeling of Static Wireless Sensor Networks Over the Ocean Surface,'' IEEE Transactions on Wireless Communications,  vol. 19, no. 6, pp. 4154-4169, June 2020.

C.E. O’Lone, H. Dhillon, and R.M. Buehrer, ``Single-Anchor Localizability in 5G Millimeter Wave Networks,'' IEEE Wireless Communications Letters, vol. 9, no. 1, pp. 65-69, January 2020. 

B. Flowers, W.C.Headley, and R.M. Buehrer, ``Evaluating Adversarial Evasion Attacks in the Context of Wireless Communications,'' IEEE Transactions on Information Forensics and Security, vol. 15, no. 1, pp. 1102-1113, January 2020.

M. Moore, W.H. Clark IV, R.M. Buehrer, and W.C. Headley, ``When is Enough Enough? "Just Enough" Decision Making with Recurrent Neural Networks for Radio Frequency Machine Learning,'' 39th IEEE -- International Performance Computing and Communications Conference (IPCCC 2020), November 6th - 8th 2020.

C.E. Thornton, R.M. Buehrer and A.F. Martone, “Efficient Online Learning for Cognitive Radar-Cellular Coexistence via Contextual Thompson Sampling,” IEEE 2020 Global Communications Conference, (GlobeCom 2020), Taipei, Taiwan, 7-11 December 2020.

J. Yu, M. S. Alhassoun, and R.M. Buehrer, “Interference Classification Using Deep Neural Networks,” IEEE Vehicular Technology Conference – Fall, Victoria, British Columbia, July 2020. 

A. Martone, K. Sherbondy, J. Kovarskiy, B. Kirk, J. Owen, B. Ravenscroft, A. Egbert, A. Dockendorf, A. Goad, C.E. Thornton, S. Blunt, R.M. Buehrer, C. Baylis, and R.M. Narayanan,  “Practical Aspects of Cognitive Radar', Proceedings of the 2020 IEEE Radar Conference , June 2020.

D. Tait, J. Yu, W. Howard, and R.M. Buehrer, “Direction of Arrival Estimation of Digital Sources With Uni-Vector-Sensor ESPRIT,” Proceedings of The 21st IEEE International Workshop on Signal Processing Advances in Wireless Communications (SPAWC 2020), Atlanta, GA, USA, May 26-29, 2020.

A. Shahanaghi, Y. Yang, and R. M. Buehrer, “Link Stability Analysis of Wireless Sensor Networks Over the Ocean Surface,” Proceedings of the 17th Annual IEEE International Conference on Sensing, Communication and Networking (IEEE SECON 2020), June 22-25, 2020, Como, Italy.

J. Yu, H. Saad, and R. M. Buehrer, ``Indoor Localization from Channel State Information with Recurrent Neural Networks,''  Proceedings of IEEE/ION Position Location and Navigation Symposium (PLANS), Portland, OR, April 20–23, 2020.

C.E. Thornton, R.M. Buehrer and A.F. Martone, “Experimental Analysis of Reinforcement Learning Techniques for Spectrum Sharing Radar", Proceedings of 2020 IEEE International Radar Conference (RADAR2020), Washington D.C., April 27 - May 1, 2020.

A. F. Martone, K. D. Sherbondy, J. A. Kovarskiy, B. H. Kirk, C. E. Thornton, J. W. Owen, B. Ravenscroft, A. Egbert, A. Goad, A. Dockendorf, R. M. Buehrer, R. M. Narayanan, S. D. Blunt, and C. Baylis, “Metacognition for Radar Coexistence,” Proceedings of 2020 IEEE International Radar Conference (RADAR2020), Washington D.C., April 27 - May 1, 2020.

S. Aditya, H. Dhillon, A.F. Molisch, R.M. Buehrer and H.M. Behairy, ``Characterizing the Impact of SNR Heterogeneity on Time-of-Arrival-Based Localization Outage Probability,'' IEEE Transactions on Wireless Communications, vol. 18, no. 1, pp. 637-649,Jan. 2019. 

C.E. O’Lone, H.S. Dillon, and R.M. Buehrer, “"A Mathematical Justification for Exponentially Distributed NLOS Bias", {\em Proceedings of the IEEE Global Communications Conference (GLOBECOM 2019)}, Waikoloa, Hawaii, December 9 – 13, 2019.

A. Shahanaghi, Y. Yang, and R. M. Buehrer, ``On the Stochastic Link Modeling of Static Wireless Sensor Networks in Ocean Environments,'' IEEE Conference on Computer Communications (IEEE INFOCOM 2019), Paris, France, April 29 - May 2, 2019.

M. Kozy, J. Yu, R. M. Buehrer, A. Martone, and K. Sherbondy,  ``Applying Deep-Q Networks to Target Tracking to Improve Cognitive Radar,'' Proceedings of 2019 IEEE Radar Conference, Boston, MA, April 22-26, 2019.

B. Kirk, M. Kozy, K. Gallagher, R. Narayanan, R. Buehrer, A. Martone, K. Sherbondy, “Cognitive Software Defined Radar: Evaluation of Target Detection with RFI Avoidance”, Proceedings of 2019 IEEE Radar Conference, Boston, MA, April 22-26, 2019.  [FINALIST FOR BEST STUDENT PAPER]

J. A. Kovarskiy, M. Kozy, C. Thornton, A. F. Martone, R. M. Narayanan, R. M. Buehrer, and K. D. Sherbondy Comparing stochastic and Markov decision process approaches for predicting radio frequency interference, Proc. SPIE Conference on Commercial and Defense Sensing, April 14-18, 2019,  doi: 10.1117/12.2519675.

 J.D. Poston, R.M. Buehrer and P.A. Tarazaga, ``A Framework for Occupancy Tracking in a Building via Structural Dynamics Sensing of Footstep Vibrations,''  Frontiers in Built Environment: Structural Sensing, 06 November 2017.

J. Poston, P. Tarazaga, and R.M. Buehrer, {``} Indoor Footstep Localization from Structural Dynamics Instrumentation,'' Mechanical Systems and Signal Processing, vol. 88, pp. 224-239, May, 2017.

S. Amuru, H. Dhillon, and R.M. Buehrer,  ``On Jamming Against Wireless Networks, '' IEEE Transactions on Wireless Communications, vol. 16, no. 1, pp. 412-428, January 2017.

C. E. O'Lone and R. M. Buehrer, "Towards a characterization of localization performance in networks with random geometries," 2017 IEEE International Conference on Communications Workshops (ICC Workshops), Paris, France, 2017, pp. 821-827. M. Abdelbar and R. M. Buehrer, ``Indoor Localization Through Trajectory Tracking Using Neural Networks,'' {\em Proceedings of the 2017 IEEE Military Communications Conference (MILCOM'17)}, Oct. 23-25, 2017, Baltimore, MD.

S. Amuru, M. van der Schaar, and R.M. Buehrer, ``Bandit Strategies for Blindly Attacking Networks,'' Proceedings of the 2017 IEEE International Conference on Communications (ICC’17), May 21-25, 2017, Paris, France.

A. A, Gaber, H. Tillman, R.M. Buehrer, and S.W. Ellingson, ``Sensitivity Analysis of Localization Using Discrete Astronomical Radio Sources,'' Proceedings of the 2017 IEEE Wireless Communications and Networking Conference, March 2017, San Francisco, CA. 

C.B. Dietrich, R. Goff, N. Polys, V. Marojevic, R. M. Buehrer, X. Gomez, S. Kim, A. Gaber Mohamed Ali and J. Garcia-Sheridan, ``Remote laboratory exercises and tutorials for spectrum-agile radio frequency systems,'' Proceedings of 2017 IEEE Frontiers in Education Conference (FIE), Oct. 18-21, 2017, Indianapolis, IN.

J. A. García-Sheridan, R. M. Goff, C.B Dietrich, V. Marojevic, N.F Polys, and R. M. Buehrer, ``A Pretest-Posttest Quasi-Experimental Study for a Game Intervention in an Undergraduate Wireless Communications Course,'' 2017 ASEE Annual Conference & Exposition, June 25 - 28, 2017, Columbus, OH.

D. J. Jakubisin, R. M. Buehrer, and C. R. C. M. da Silva, "BP, MF, and EP for joint channel estimation and detection of MIMO-OFDM signals", in Proc. Globecom, 2016

D. J. Jakubisin and R. M. Buehrer, "Approximate joint MAP detection of co-channel signals in non-Gaussian noise", IEEE Transactions on Communications, 2016

S. W. Ellingson; R. M. Buehrer, " Frequency channel delay modulation for interference-robust low data rate communication", in Proc. MILCOM, 2016.

T. Bhandari, H. S. Dhillon and R. M. Buehrer,"The impact of proximate base station measurements on localizability in cellular systems", in Proc. SPAWC 2016

J. D. Poston; R. M. Buehrer; A. G. Woolard and P. A. Tarazaga, "Indoor positioning from vibration localization in smart buildings" in Proc. IEEE/ION Position Location and Navigation Symp. (PLANS), 2016.

R. M. Vaghefi and R. M. Buehrer, "On the CRLB of TDOA/FDOA estimation from MIMO signals", in Proc. IEEE/ION Position Location and Navigation Symp. (PLANS), 2016

M. Abdelbar and R. M. Buehrer, "Improving cellular positioning indoors through trajectory matching", in Proc. IEEE/ION Position Location and Navigation Symp. (PLANS), 2016

S. Amuru, R. M. Buehrer, and M. van der Schaar, "Blind Network Interdiction - A Learning Approach", IEEE Transactions on Cognitive Communications and Networking, 2016.

R. Tandon, S. Amuru, T. C. Clancy, and R. M. Buehrer, "Towards Optimal Secure Distributed Storage Systems with Exact Repair", IEEE Transactions on Information Theory, 2016.

A. Gaber, R. H. Tillman, R. M. Buehrer, and S. Ellingson, "Navigating via Discrete Astronomical Radio Sources: Geolocalization Using Fringe Rates", in Proc. IEEE/ION Position, Location and Navigation Symposium - PLANS, Georgia, Apr. 2016.

C. E. O'Lone and R. M. Buehrer, "An Analysis of the Convex Hull's Impact on Localization Performance", in Proc. IEEE/ION Position, Location and Navigation Symposium - PLANS, Georgia, Apr. 2016, pp. 519-526.

R. M. Vaghefi, S. Amuru, D. Jakubisin, J. Schloemann, and, R. M. Buehrer, "MIMO-Radar-Based Indoor Passive Localization and Tracking", in Proc. IEEE/ION Position, Location and Navigation Symposium - PLANS, Georgia, Apr. 2016.

R. M. Vaghefi and R. M. Buehrer, "On the CRLB of TDOA/FDOA Estimation from MIMO Signals", in Proc. IEEE/ION Position, Location and Navigation Symposium - PLANS, Georgia, Apr. 2016.

S. Amuru, H. S. Dhillon, R. M. Buehrer, "An error probability analysis of jamming against wireless networks", in Proc. IEEE ICC, Malaysia, Jun. 2016.   

M. Lichtman, J. D. Poston, S. Amuru, C. Shahriar, T. C. Clancy, R. M. Buehrer, and J. H. Reed, "A Communications Jamming Taxonomy," in IEEE Security and Privacy, Feb. 2016.

 J. Schloemann, H. S. Dhillon, and R. M. Buehrer, Tractable Metric for Evaluating Base Station Geometries in Cellular Network Localization, to appear IEEE Wireless Communications Letters, 2015.

S. Amuru, C. Tekin, M. van der Schaar, and R. M. Buehrer, "Jamming Bandits - A Novel Learning Method for Optimal Jamming", IEEE Transactions on Wireless Communications, to appear.

J. Schloemann, H. S. Dhillon and R. M. Buehrer, "Towards a Tractable Analysis of Localization Fundamentals in Cellular Networks", IEEE Transactions on Wireless Communications, to appear.

S. Garlapati, T. Kuruganti, R. M. Buehrer, and J. H. Reed "SMAC: A Soft MAC to Reduce Control Overhead and Latency in CDMA-Based AMI Networks," IEEE/ACM Transactions on Networking, Oct. 2015.    

D. J. Jakubisin and R. M. Buehrer, "Performance, Complexity, and Receiver Design for Code-Aided Frame Synchronization in Multipath Channels," IEEE Transactions on Communications, vol. 63, no. 9, pp. 3363-3376, Sep. 2015.

J. Schloemann, H. S. Dhillon, R. M. Buehrer, "Effect of Collaboration on Localizability in Range-Based Localization Systems", in Proc. IEEE Globecom Workshops, San Diego, CA, Dec. 2015.   

S. Amuru, Y. Xiao, M. van der Schaar, and R. M. Buehrer, "To Send or Not To Send - Learning MAC Contention," in Proc. IEEE Globecom, San Diego, CA, Dec. 2015.

K. McDermott, R. M. Vaghefi, and R. M. Buehrer, "Cooperative UTDOA Positioning in LTE Cellular Systems," in Proc. IEEE Globecom Workshops, San Diego, CA, Dec. 2015.

N. El Gemayel, J. Schloemann, R. M. Buehrer, and F. K. Jondral, "Improved Indoor Positioning Using the Baum-Welch Algorithm", in Proc. IEEE Globecom Workshops, San Diego, CA, Dec. 2015.

D. J. Jakubisin and R. M. Buehrer, "Approximate Joint MAP Detection of Co-Channel Signals," in Proc. IEEE MILCOM, Tampa, FL, Oct. 2015

J. Schloemann and R. M. Buehrer, "On the Value of Collaboration In Location Estimation," IEEE Transactions on Vehicular Technology, 2015.  

S. Amuru and R. M. Buehrer, "Optimal Jamming against Digital Modulation," IEEE Transactions on Information, Forensics and Security, 2015.

J. D. Poston, R. M. Buehrer, V. V. N. S. Malladi, A. Woolard, and P. Tarazaga, "Vibration Sensing in Smart Buildings for Indoor Positioning of Pedestrians," in Proc. Indoor Positioning and Indoor Navigation (IPIN), Banff, Canada, Oct. 2015.

R. M. Vaghefi and R. M. Buehrer, "Cooperative Localization in NLOS Environments Using Semidefinite Programming," IEEE Commun. Lett., 2015.

J. D. Poston, J. Schloemann, R. M. Buehrer, V. V. N. S. Malladi, A. Woolard, and P. Tarazaga, "Towards Indoor Localization of Pedestrians via Smart Building Vibration Sensing," in Proc. International Conference on Localization and GNSS (ICL-GNSS), Gothenburg, Sweden, Jun. 2015.

R. M. Vaghefi and R. M. Buehrer, "Cooperative Joint Synchronization and Localization in Wireless Sensor Networks," IEEE Transactions on Signal Processing, 2015.

J. Schloemann, H. S. Dhillon, and R. M. Buehrer, "Localization Performance in Cellular Networks," in Proc. IEEE ICC Workshops, June, 2015.

S. Yousefi, R. M. Vaghefi, X. Chang, B. Champagne,and R. M. Buehrer, "Sensor Localization in NLOS Environments with Anchor Uncertainty and Unknown Clock Parameters," in Proc. IEEE ICC Workshops, June, 2015.  

S. Amuru, C. Tekin, M. van der Schaar, and R. M. Buehrer, "A Systematic Learning Method for Optimal Jamming," in Proc. IEEE ICC, June, 2015.

R. M. Vaghefi, S. Amuru, and R. M. Buehrer, "Improving Mobile Node Tracking Performance in NLOS Environments Using Cooperation," in Proc. IEEE ICC, June, 2015.

J. Schloemann, V. V. N. S. Malladi , A. G. Woolard, J. M. Hamilton, R. M. Buehrer, and P. A. Tarazaga, "Vibration Event Localization in an Instrumented Building", International Modal Analysis Conference (IMAC), Orlando, FL, Feb. 2015. 

 S. Amuru and R. M. Buehrer, "Optimal Jamming Strategies in Digital Communications-Impact of Modulation," in Proc. IEEE GLOBECOM, December, 2014.

J. Schloemann and R. M. Buehrer, "On the Value of Collaboration in Multidimensional Location Estimation," in Proc. IEEE GLOBECOM, December, 2014.  

R. M. Vaghefi and R. M. Buehrer, "A Linear Estimator for Joint Synchronization and Localization in Wireless Sensor Networks," in Proc. IEEE GLOBECOM, December, 2014.   

J. Schloemann and R. M. Buehrer, "On the Value of Collaboration in Non-Line-of-Sight Location Estimation," in Proc. IEEE MILCOM, October, 2014. 

S. Amuru and R. M. Buehrer, "Optimal Jamming using Delayed Learning," in Proc. IEEE MILCOM, October, 2014.  

R. M. Vaghefi and R. M. Buehrer, "Cooperative RF Pattern Matching Positioning for LTE Cellular Systems," in Proc. IEEE PIMRC, September, 2014.  

A. Sengupta, S. Amuru, R. Tandon, R. M. Buehrer, and T. C. Clancy, "Learning distributed caching strategies in small cell networks," in Proc. IEEE ISWCS, August, 2014.  

S. Amuru, R. Tandon, R. M. Buehrer, and T. C. Clancy, "Retroactive Anti-Jamming for MISO Broadcast Channels," IEEE Transactions on Information Theory.

J. D. Poston and R. M. Buehrer, "Spectrum Sharing with Rotating Radar: Implications for Cognitive Radio Rendezvous," in Proc. IEEE APS/URSI, July, 2014.  

D. Jakubisin and R. M. Buehrer, "On the Complexity-Performance Trade-off in Code-Aided Frame Synchronization," in Proc. 15th IEEE Int. Workshop on Signal Processing Advances in Wireless Communications (SPAWC), June, 2014.  

R. M. Vaghefi and R. M. Buehrer, "Joint TOA-Based Sensor Synchronization and Localization Using Semidefinite Programming," in Proc. IEEE ICC, June, 2014.

R. Tandon, S. Amuru, T. C. Clancy, and R. M. Buehrer, "On Secure Distributed Storage Systems with Exact Repair," in Proc. IEEE ICC, June, 2014.  

A. Amini, R. M. Vaghefi, J. M. de la Garza, and R. M. Buehrer, "Improving GPS-Based Vehicle Positioning for Intelligent Transportation Systems," in Proc. IEEE IV, June, 2014.  

D. Jakubisin, C. I. Phelps, and R. M. Buehrer, "Iterative Joint Detection, Decoding, and Synchronization with a Focus on Frame Timing," in Proc. IEEE Wireless Communications and Networking Conf. (WCNC), April, 2014.  

R. M. Vaghefi and R. M. Buehrer, "Improving Positioning in LTE through Collaboration," in Proc. IEEE WPNC, March, 2014.  

A. Amini, R. M. Vaghefi, J. M. de la Garza, and R. M. Buehrer "GPS-Free Cooperative Mobile Tracking with the Application in Vehicular Networks," in Proc. IEEE WPNC, March, 2014.

C. I. Phelps and R. M. Buehrer, "Iterative Synchronization Using QC-LDPC Codes for Flexible and Efficient DSA Systems," Workshop on Software Radios, Karlsruhe, Mar. 2014.

R. Tandon, S. Amuru, T. C. Clancy, and R. M. Buehrer, "Distributed Storage Systems with Secure and Exact Repair - New Results," in Proc. ITA, February, 2014.

 S. Amuru, R. Tandon, R. M. Buehrer, and T. C. Clancy, "Jamming Countermeasures for Multi-User MISO Broadcast Channels - A DoF Perspective," in Proc. IEEE GLOBECOM, Dec. 9-13, 2013.

S. Amuru, R. M. Buehrer, R. Tandon, and S. Sodagari, "MIMO Radar Waveform Design to support Spectrum Sharing," in Proc. IEEE MILCOM, Nov. 18-20, 2013.

J. Schloemann and R. M. Buehrer, "Using Fisher Information Matrix Summary Statistics to Assess the Value of Collaborative Positioning Opportunities," in Proc. IEEE MILCOM, Nov. 18-20, 2013.

R. M. Vaghefi and R. M. Buehrer, "Target Tracking in NLOS Environments Using Semidefinite Programming," in Proc. IEEE MILCOM, Nov. 18-20, 2013.

S. Amuru, D. Jakubisin, R. M. Buehrer, and C. da Silva, "Asynchronous Signal Detection in Frequency-Selective Non-Gaussian Channels," in Proc. IEEE Asilomar, Nov. 3-6, 2013.

S. Amuru, R. Tandon, R. M. Buehrer, and T. C. Clancy, "Interference Alignment for MISO Broadcast Channels under Jamming attacks," in Proc. IEEE Asilomar, Nov. 3-6, 2013.

Y. Hasan and R. M. Buehrer, "Interference Analysis of Multi-hop Cellular Sensor Networks," in Proc. IEEE Asilomar, Nov. 3-6, 2013.

R. M. Vaghefi and R. M. Buehrer, "Received Signal Strength-Based Sensor Localization in Spatially Correlated Shadowing," in Proc. IEEE ICASSP, May 26-31, 2013

R. M. Vaghefi and R. M. Buehrer, "Asynchronous Time-of-Arrival-Based Source Localization," in Proc. IEEE ICASSP, May 26-31, 2013.

R. M. Vaghefi, J. Schloemann, and R. M. Buehrer, "NLOS Mitigation in TOA-Based Localization Using Semidefinite Programming," in Proc. 10th Workshop on Positioning Navigation and Communication (WPNC), March 20-21, 2013.

R. M. Vaghefi, M. R. Gholami, R. M. Buehrer, and E. G. Strom, "Cooperative Received Signal Strength-Based Sensor Localization With Unknown Transmit Powers," IEEE Transactions on Signal Processing, vol.61, no.6, pp.1389-1403, 2013.

C. I. Phelps, and R. M. Buehrer, "Signal Classification by Probabilistic Reasoning," in Proc. RWW, pp. 154-156, January 2013.

S. Garlapati, R. M. Vaghefi, and R. M. Buehrer, "Performance Evaluation of Hybrid Spread Spectrum Based Advanced Smart Metering Infrastructure Network with Multi-User Detection Techniques in Jamming Channel," in Proc. RWW, pp. 154-156, January 2013.

A. Martin, Y. Hasan, and R. M. Buehrer, "Physical Layer Security of Hybrid Spread Spectrum Systems," in Proc. RWW, pp. 370-372, January 2013.

 M. W. Baidas, A.B. MacKenzie, and R.M. Buehrer, "Performance Analysis of Network-Coded Bi-Directional Relaying for Amplify-and-Forward Cooperative Wireless Networks" in Proc. IEEE IWCMC 2012, Limassol, Cyprus, August 27- 31, 2012.

H. I. Volos and R.M. Buehrer, "Cognitive Radio Engine Training," IEEE Transactions on Wireless Communications, vol. 11, no. 11, pp. 3878-3889, November, 2012.

D. Jakubisin and R. M. Buehrer, "Improved modulation classification using a factor-graph-based iterative receiver," in Proc. IEEE Military Communications Conf. (MILCOM), Orlando, FL, 2012, pp. 1-6.

J. Schloemann and R. M. Buehrer, "On the value of collaboration in anchorless robot self-localization," in Proc. IEEE Military Comm. Conf., Orlando, FL, 2012, pp. 1-6.

R. M. Vaghefi and R. M. Buehrer, "Cooperative sensor localization with NLOS mitigation using semidefinite programming," in Proc. 9th Workshop on Positioning Navigation and Communication (WPNC), pp.13-18, March 2012.

B. Thompson and R. M. Buehrer, "Characterizing and improving the collaborative position location problem," in Proc. 9th Workshop on Positioning Navigation and Communication (WPNC), pp.42-46 , March 2012.

Z. Biskaduros and R. M. Buehrer, "Collaborative localization enhancement to the Global Positioning System," in Proc. 9th Workshop on Positioning Navigation and Communication (WPNC), pp.142-146, March 2012.

J. Overfield, Z. Biskadurous, and R.M. Buehrer, "Geolocation of MIMO signals using the Cross Ambiguity Function and TDOA/FDOA," Proceedings of the International Conference on Communications (ICC 12) Signal Processing for Communications Symposium, Ottawa, Canada, June 11-16, 2012.

S. Garlapati, R. M. Vaghefi, R. M. Buehrer, and J. H. Reed, "Performance evaluation of hybrid spread spectrum based wireless smart meter sensor network with multi-user detection techniques," IEEE International Conference on Wireless Information Technology and Systems (ICWITS), pp.1-4, 11-16 Nov. 2012.

S. Garlapati, H.I. Volos, T. Kuruganti, R.M. Buehrer, and J.H. Reed, "PHY and MAC layer design of Hybrid Spread Spectrum based smart meter network," Performance Computing and Communications Conference (IPCCC), 2012 IEEE 31st International , vol., no., pp.183-184, 1-3 Dec. 2012. 

B. Thompson and R.M. Buehrer, "Cooperative Indoor Position Location Using Reflected Estimations," European Wireless 2011, pp. 644-649, Vienna, Austria, April 27-29, 2011.

H. A. Shaban, M. A. El-Nasr, and R.M. Buehrer, "Localization with Sub-Millimeter Accuracy for UWB-Based Wearable Human Movement Radar Systems," Journal of Electromagnetic Waves and Applications, Vol. 25, Iss. 11-12, 2011.

T. Jia and R.M. Buehrer, "A set-theoretic approach to collaborative position location for wireless networks," Mobile Computing, IEEE Transactions on, vol. 10, no. 9, pp. 1264-1275, Sept. 2011.

J. Lee, A. Raju, and R.M. Buehrer, "Characterisation of wideband code division multiple access uplink transmit power for typical mobile usage patterns," Microwaves, Antennas Propagation, IET, vol. 5, no. 5, pp. 535-544, April 2011.

H. Shaban, M. A. El-Nasr, and R. M. Buehrer, "Throughput of optimal and suboptimal low-power IR-UWB coherent receivers for wireless body-area-networks (WBANs)" in General Assembly and Scientic Symposium, 2011 XXXth URSI, pp. 1-4, Aug. 2011.

C. Anderson, D. Hibbard, and R. Buehrer, "The impact of bandwidth on the performance of DSSS signals in indoor office environments," IEEE Transactions on Wireless Communications, vol. 10, no. 9, pp. 2792-2799, September 2011.

H. A. Shaban, M. A. El-Nasr, and R. M. Buehrer, "Reference range correlation (RRCR) ranging and performance bounds for on-body UWB-based body sensor networks," Progress In Electromagnetics Research B, Vol. 35, 69-85, 2011.

H. Dhillon, Jeong-O. Jeong, D. Datla, M. Benonis, R.M. Buehrer, and J.H. Reed. "A sub-space method to detect multiple wireless microphone signals in TV band white space." Analog Integrated Circuits and Signal Processing, Vol. 69, no. 2-3, pp. 297-306, 2011.

H. I. Volos and R.M. Buehrer, "Cognitive Engine Design for Link Adaptation: An Application to Multi-Antenna Systems," IEEE Transactions on Wireless Communications, vol. 9, no. 9, pp. 2902 - 2913, September 2010.

H. Shaban, M. A. El-Nasr, and R.M. Buehrer, "Towards a Highly Accurate Ambulatory System for Clinical Gait," IEEE Transactions on Information Technology in Biomedicine, vol. 14, no. 2, pp. 284 - 291, March 2010.

T. Jia and R.M. Buehrer, "On the Optimal Performance of Collaborative Position Location," IEEE Transactions on Wireless Communications, vol. 9, no. 1, pp. 374-383, January 2010.

J.-H. Lee and R.M. Buehrer, "Location Spoofing Attack Detection in Wireless Networks," 2010 IEEE Global Communications Conference (GLOBECOM 11), pp. 1-6, Miami, FL, December 6-10, 2010.

R. Buehrer, T. Jia, and B. Thompson, "Cooperative indoor position location using the parallel projection method," in Indoor Positioning and Indoor Navigation (IPIN), 2010 International Conference on, sept. 2010, pp. 1-10.

H. Dhillon and R.M. Buehrer, "ƒ‚‚œOn the maximum sum-rate of cognitive MIMO interference channels," in MILITARY COMMUNICATIONS CONFERENCE, 2010 - MILCOM 2010, Nov. 2010, pp. 755-761.

H. Dhillon and R.M. Buehrer, "On the sum-rate of MIMO interference channel," in GLOBECOM 2010, 2010 IEEE Global Telecommunications Conference, Dec. 2010, pp. 1-6.

T. Jia and R. Buehrer, "Collaborative Position Location for Wireless Networks Using Iterative Parallel Projection Method," in GLOBECOM 2010, 2010 IEEE Global Telecommunications Conference, Dec. 2010, pp. 1-6.

T. Jia and R.M. Buehrer, "Collaborative Position Location with NLOS Mitigation," IEEE to the Personal, Indoor, and Mobile Radio Conference (PIMRC2010), Workshop on Advanced in Positioning and Location Enabled Communications (APLEC), pp. 267 - 271, Istanbul, Turkey, Sep. 26, 2010.

H. Volos and R.M. Buehrer,"Robust Training of A Link Adaptation Cognitive Engine," 2010 IEEE Military Communications Conference (MILCOM 2010), pp. 1442 - 1447, San Jose, CA, Oct. 31 2010-Nov. 3 2010.

R. M. Buehrer, B. Thomson, and T. Jia, "Cooperative Indoor Position Location," 2010 International Conference on Indoor Positioning and Indoor Navigation (IPIN), pp. 1-10, Zurich, Switzerland, September 17-19, 2010.

 US 9,596,571 B1 "Estimating the location of a Wireless Terminal based on Radio Frequency Pattern Matching and Cooperative Measurements".

US 6,920,314, "Symmeric sweep phase sweep transmit Diversity".

US 6,801,791, "Cellular communications system and related methods".

US 6,542,560, "Method of channel estimation and compensation based thereon".

US 6,549,565, "Code division multiple access system and method of operation with improved signal acquisition and processing".

US 6,594,226, "Apparatus and method of enhancing transmit diversity".

US 6,614,857, "Iterative channel estimation and compensation based thereon".

US 6,515,978, "Methods and apparatus for downlink diversity in CDMA using Walsh codes".

US 6,363,103, "Multistage interference cancellation for CDMA applications using M-ary orthogonal moduation".

US 6,317,410, "A receiver architecture employing space time spreading and orthogonal transmit diversity techniques".

US 6,392,988, "Transmitter architecture employing space time spreading and orthogonal transmit diversity techniques".

US 6,157,847, "Signal processing device and signal processing method". 

 T.S. Rappaport, R. Muhamed, R.M. Buehrer, and A. Doradla, "Mobile and Portable Radio Communications," in The Engineering Handbook, 1st ed. Boca Raton: CRC Press, 1998, ch. 130

R. M. Buehrer, "Code Division Multiple Access(CDMA)", Synthesis Lectures on Communications, Morgan & Claypool Publishers, 2006.

R. Zekavat, and R. M. Buehrer, Handbook of Position Location: Theory, Practice and Advances. John Wiley and Sons, 2011. 

http://scholar.google.com/citations?user=smm3MNcAAAAJ&hl=en&oi=ao