Journals

[36] P.N. Alevizos, E. Vlachos and A. Bletsas, "Inference-based Distributed Channel Allocation in Wireless Sensor Networks", arXiv.

[35] N.B. Carvalho et al, "Europe and the Future for Wireless Power Transmission", IEEE Microwave Magazine (MM), Vol. 18, No. 4, pp. 56-87, June 2017.

[34] P.N. Alevizos, X. Fu, N. Sidiropoulos, Y. Yang and A. Bletsas, "Limited Feedback Channel Estimation in Massive MIMO with Non-uniform Directional Dictionaries", submitted to IEEE Transactions on Wireless Communications (TWC), Mar. 2017.

[33] P.N. Alevizos, A. Bletsas and G.N. Karystinos, "Noncoherent Short Packet Detection and Decoding for Scatter Radio Sensor Networking", IEEE Transactions on Communications (TCOM), Vol. 65, No. 5, pp. 2128-2140, May 2017.

[32] P.N. Alevizos and A. Bletsas, "Network Localization Cramèr-Rao Bounds for General Measurement Models", IEEE Communications Letters (CL), Vol. 20, No. 9, pp. 1840-1843, Sept. 2016.

[31] S.N. Daskalakis, S.D. Assimonis, E. Kampianakis and A. Bletsas, "Soil Moisture Scatter Radio Networking with Low Power", IEEE Transactions on Microwave Theory and Techniques (TMTT), Special Issue on RFID Sensing & Imaging, Vol. 64, No. 7, pp. 2338-2346, July 2016.

[30] P.N. Alevizos, Y. Fountzoulas, G.N. Karystinos and A. Bletsas, "Log-linear-complexity GLRT-optimal Noncoherent Sequence Detection for Orthogonal and RFID-oriented Modulations",
IEEE Transactions on Communications (TCOM), Vol. 64, No. 4, pp. 1600-1612, Apr. 2016.
Conference version received best, conference-wide student paper award and best student paper award in Communications and Networks track, IEEE ICASSP 2015.

[29] S.D. Assimonis, S.N. Daskalakis and A. Bletsas, "Sensitive and Efficient RF Harvesting Supply for Batteryless Backscatter Sensor Networks",
IEEE Transactions on Microwave Theory and Techniques (TMTT), Vol. 64, No. 4, pp. 1327-1338, Apr. 2016.

[28] C. Konstantopoulos, E. Koutroulis, N. Mitianoudis and A. Bletsas, "Converting a Plant to a Battery and Wireless Sensor with Scatter Radio and Ultra-Low Cost",
IEEE Transactions on Instrumentation & Measurement (IM), Vol. 65, No. 2, pp. 388-398, Feb. 2016.

[27] N. Kargas, F. Mavromatis and A. Bletsas, "Fully-Coherent Reader with Commodity SDR for Gen2 FM0 and Computational RFID",
IEEE Wireless Communications Letters (WCL), Vol. 4, No. 6, pp. 617-620, Dec. 2015.
Software code available online, for coherent Gen2 RFID reception and a single RF card with USRP2.

[26] N. Fasarakis-Hilliard, P.N. Alevizos and A. Bletsas, "Coherent Detection and Channel Coding for Bistatic Scatter Radio Sensor Networking",
IEEE Transactions on Communications (TCOM), Vol. 63, No. 5, pp. 1798-1810, May 2015.

[25] E. Kampianakis, J. Kimionis, K. Tountas, C. Konstantopoulos, E. Koutroulis and A. Bletsas, "Wireless Environmental Sensor Networking with Analog Scatter Radio & Timer Principles",
IEEE Sensors Journal (SENSORS), Vol. 14, No. 10, pp. 3365 – 3376, Oct. 2014.
Conference version selected as one of the best papers in IEEE Sensors Conference, November 2013, Baltimore, USA.

[24] K. Alexandris, G. Sklivanitis and A. Bletsas, "Reachback WSN Connectivity: Non-coherent Zero-Feedback Distributed Beamforming or TDMA Energy Harvesting?", IEEE Transactions on Wireless Communications (TWC), Vol. 13, No. 9, pp. 4923 – 4934, Sept. 2014.

[23] E. Alimpertis, N. Fasarakis-Hilliard and A. Bletsas, "Community RF Sensing for Source Localization", IEEE Wireless Communications Letters (WCL), Vol. 3, No. 4, pp. 393 – 396, Aug. 2014.

[22] A.G. Dimitriou, S. Siachalou, A. Bletsas and J.N. Sahalos, "A Site-Specific Stochastic Propagation Model for Passive UHF RFID", IEEE Antennas & Propagation Letters (APL), Vol. 13, pp. 623-626, March 2014.

[21] J. Kimionis, A. Bletsas and J. N. Sahalos, "Increased Range Bistatic Scatter Radio",
IEEE Transactions on Communications (TCOM), Vol. 62, No. 3, pp. 1091-1104, March 2014.

[20] A. Bletsas, A. Vlachaki, E. Kampianakis, J. Kimionis, G. Sklivanitis, K. Tountas, M. Asteris and P. Markopoulos, "Building the Low-Cost Digital Garden as a Telecom Lab Exercise", IEEE Pervasive Computing, Vol. 12, No. 1, pp. 48-57, Jan.- Mar. 2013.

[19] A. C. Polycarpou, A. Dimitriou, A. Bletsas, P. Polycarpou, L. Papaloizou, G. Gregoriou, J.N. Sahalos, "On the Design, Installation, and Evaluation of a Radio Frequency Identification System for Healthcare Applications", IEEE Antennas & Propagation Magazine (AP)[Wireless Corner], Vol. 54, Issue 4, pp. 255-271, Aug. 2012.

[18] A. Bletsas, J. Kimionis, A.G. Dimitriou and G.N. Karystinos, "Single-Antenna, Coherent Detection of Collided FM0 RFID Signals", IEEE Transactions on Communications (TCOM), Vol. 60, No. 3, pp. 756-766, March 2012.
Conference version received 2nd Best Student Paper Award at IEEE RFID Technologies and Applications (RFID-TA) Conference, Sitges Barcelona, Spain, September 2011.

[17] A. Bletsas, A. Lippman and J.N. Sahalos, "Zero-Feedback, Collaborative Beamforming for Emergency Radio: Asymptotic Analysis", Mobile Networks and Applications (MONET), Vol. 16, No. 5, pp. 589-599, October 2011, best papers from IEEE ISWCS 09.
Conference version received Best Paper Distinction at IEEE International Symposium of Wireless Communication Systems (ISWCS), Siena Italy, September 2009.

[16] A.G. Dimitriou, A. Bletsas, A.C. Polycarpou and J.N. Sahalos, "Theoretical Findings and Measurements on Planning an Operational UHF RFID System inside a Room", Radioengineering, Vol. 20, No. 2, June 2011, invited (selected publications from IEEE EUCAP 2010).

[15] A.G. Dimitriou, A. Bletsas and J.N. Sahalos, "Room Coverage Improvements in UHF RFID with Commodity Hardware", IEEE Antennas & Propagation Magazine (AP) [Wireless Corner], Vol. 53, No. 1, February 2011.

[14] A. Bletsas, A. Lippman and J.N. Sahalos, "Simple, Zero-Feedback, Distributed Beamforming with Unsynchronized Carriers", IEEE Journal on Selected Areas of Communication (JSAC), Special Issue on Simple Sensor Networking Solutions, Vol. 28, No. 7, pp. 1046-1054, September 2010.

[13] A. Bletsas, A.G. Dimitriou and J.N. Sahalos, "Improving Backscatter Radio Tag Efficiency", IEEE Transactions on Microwave Theory and Techniques (TMTT), Vol. 58, No. 6, pp. 1502-1509, June 2010.

[12] A. Bletsas, A.G. Dimitriou and J.N. Sahalos, "Interference-Limited Opportunistic Relaying with Reactive Sensing",
IEEE Transactions on Wireless Communications (TWC), Vol. 9, Issue 1, pp. 14-20, January 2010.

[11] A. Bletsas and J.N. Sahalos, "Hirsch Index Rankings Require Scaling and Higher Moment", Journal of the American Society for Information Science and Technology (JASIST), Vol. 60, Issue 12, pp. 2577-2586, December 2009.

[10] A. Bletsas, S. Siachalou and J.N. Sahalos, "Anti-collision Backscatter Sensor Networks",
IEEE Transactions on Wireless Communications (TWC), Vol. 8, No. 10, pp. 5018-5029, October 2009.

[9] A. Bletsas, "Orthogonal Opportunistic Relaying for Cooperative Wireless Communications", Chapter 7 in "Cooperative Wireless Communications", pp. 73-92, Auerbach Publications, 2009.

[8] G. Vannucci, A. Bletsas and D. Leigh, "A Software-Defined Radio System for Backscatter Sensor Networks", IEEE Transactions on Wireless Communications (TWC), Vol. 7, No. 6, pp. 2170-2179, June 2008.

[7] A. Bletsas, A. Khisti, M.Z. Win, "Opportunistic Cooperative Diversity with Feedback and Cheap Radios", IEEE Transactions on Wireless Communications (TWC), Vol. 7, No. 5, pp. 1823-1827, May 2008.

[6] A. Bletsas, H. Shin, M.Z. Win, "Cooperative Communications with Outage-Optimal Opportunistic Relaying", IEEE Transactions on Wireless Communications (TWC), Vol. 6, No. 9, pp. 3450-3460, September 2007.
2008 IEEE Communications Society Marconi Prize Paper Award in Wireless Communications

[5] A. Bletsas, H. Shin and M.Z. Win, "Outage Analysis for Cooperative Communication with Multiple Amplify-and-Forward Relays", Electronics Letters (ELL), Vol. 43, No. 6, March 2007.

[4] A. Bletsas, H. Shin and M.Z. Win, "Outage Optimality of Amplify-and-Forward Opportunistic Relaying", IEEE Communications Letters (CL), Vol. 11, No. 3, March 2007.

[3] A. Bletsas and A. Lippman, "Implementing Cooperative Diversity Antenna Arrays with Commodity Hardware", IEEE Communications Magazine (COMMAG), Vol. 44, No. 12, pp. 33-40, December 2006.

[2] A. Bletsas, A. Khisti, D.P. Reed, A. Lippman, "A Simple Cooperative Diversity Method based on Network Path Selection", IEEE Journal on Selected Areas of Communication (JSAC),  Special Issue on 4G Wireless Systems, Vol. 24, No. 3, pp. 659-672, March 2006.

[1] A. Bletsas, "Evaluation of Kalman Filtering for Network Time Keeping", IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control (TUFFC), Vol. 52, Issue 9, pp. 1452-1460, September 2005.

Patents

A. Lippman, D.P. Reed, A. Bletsas, "Method for automatic signal routing in ad hoc networks",
U.S. Patent 8089887, January 3, 2012.

B. Hubert, J. Jacobson, A. Bletsas, "Method for direct fabrication of nanostructures",
U.S. Patent 7998528, August 16, 2011.

Conferences

[59] P.N. Alevizos, X. Fu, N. Sidiropoulos, Y. Yang, A. Bletsas, "Non-uniform Directional Dictionary-Based Limited Feedback for Massive MIMO Systems", accepted, 15th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt), May 2017, Paris, France.

[58] Y. Fountzoulas, D. Chachlakis, G.N. Karystinos and A. Bletsas, "GLRT-Optimal Blind MSK Detection with Log-Linear Complexity", 23rd International Conference on Telecommunications (ICT), May 2016, Thessaloniki, Greece.

[57] P.N. Alevizos and A. Bletsas, "Scatter Radio Receivers for Extended Range Environmental Sensing WSNs", poster, IEEE Communication Theory Workshop, May 2016, Nafplio, Greece.

[56] G. Vougioukas, S.N. Daskalakis and A. Bletsas, "Could Battery-less Scatter Radio Tags Achieve 270-meter Range?", IEEE Wireless Power Transfer Conference (WPTC), May 2016, Aveiro, Portugal.

[55] S. Siachalou, A. Bletsas, John Sahalos and Antonis Dimitriou, "RSSI-Based Maximum Likelihood Localization of Passive RFID Tags Using a Mobile Cart", IEEE Wireless Power Transfer Conference (WPTC), May 2016, Aveiro, Portugal.

[54] S.N. Daskalakis, A. Georgiadis, A. Bletsas and C. Kalialakis, "Dual Band RF Harvesting with Low-Cost Lossy Substrate for Low-Power Supply System", IEEE European Conference on Antennas and Propagation (EUCAP), April 2016, Davos, Switzerland.

[53] K. Tountas, P. Alevizos, A. Tzedaki and A. Bletsas, "Bistatic Architecture Provides Extended Coverage and System Reliability in Scatter Sensor Networks", Proc. 5th Int. Workshop on RFID Technology, Oct. 2015, Rosenheim, Germany.

[52] G.N. Karystinos and A. Bletsas, "Cubic-complexity Optimal Noncoherent OOK Sequence Detection in Flat Fading", IEEE International Conference on Communications (ICC), June 2015, London, UK.

[51] P.N. Alevizos and A. Bletsas, "Noncoherent Composite Hypothesis Testing Receivers for Extended Range Bistatic Scatter Radio WSNs", IEEE International Conference on Communications (ICC), June 2015, London, UK.

[50] N. Fasarakis-Hilliard, P.N. Alevizos and A. Bletsas, "Coherent Detection and Channel Coding for Bistatic Scatter Radio Sensor Networking", IEEE International Conference on Communications (ICC), June 2015, London, UK.

[49] P.N. Alevizos, Y. Fountzoulas, G.N. Karystinos and A. Bletsas, "Noncoherent Sequence Detection of Orthogonally Modulated Signals in Flat Fading with Log-Linear Complexity", IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 19-24 April 2015, Brisbane, Australia. Received conference-wide student paper award and best student paper award in Communications and Networks track.

[48] N. Fasarakis-Hilliard, P. N. Alevizos, and A. Bletsas, "Variational Inference Cooperative Network Localization with Narrowband Radios," IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 19-24 April 2015, Brisbane, Australia.

[47] K. Tountas, A.G. Dimitriou, A. Bletsas and J.N. Sahalos, "Mobility Improves Performance of RFID Library Systems", IEEE European Conference on Antennas and Propagation (EUCAP), April 2015, Lisbon, Portugal.

[46] D. Ntilis, P. Oikonomakos, V. Papadakis, A. Inglezakis, A. G. Dimitriou and A. Bletsas, "Frequency Planning for a Multi-Radio 802.11s City-Wide Water Management Network", 1st International Workshop on Cyber-Physical Systems for Smart Water Networks (CysWater 15), Cyber Physical Systems Week, April 2015, Seattle, WA, USA.

[45] A.G. Dimitriou, D. Ntilis, P. Oikonomakos, A. Igglezakis, V. Papadakis and A. Bletsas, "Designing Limited-EIRP, Long-distance Links for Water Management Networks Using Polarization Diversity and Redundant Routing Paths", 1st International Workshop on Cyber-Physical Systems for Smart Water Networks (CysWater 15), Cyber Physical Systems Week, April 2015, Seattle, WA, USA.

[44] P. Alevizos, E. Vlachos and A. Bletsas, "Factor Graph-Based Distributed Frequency Allocation in Wireless Sensor Networks", IEEE Global Communications Conference (GLOBECOM), December 2014, Texas-Austin, USA.

[43] N. Fasarakis-Hilliard, P. Alevizos and A. Bletsas, "Narrowband Cooperative Network Localization", IEEE Global Communications Conference (GLOBECOM), December 2014, Texas-Austin, USA.

[42] S.N. Daskalakis, S.D. Assimonis, L. Kampianakis and A. Bletsas, "Soil Moisture Wireless Sensing with Analog Scatter Radio, Low Power, Ultra-Low Cost and Extended Communication Ranges", IEEE Sensors Conference (SENSORS), November 2014, Valencia, Spain.

[41] P. Alevizos, N. Fasarakis-Hilliard, K. Tountas, N. Agadakos, N. Kargas and A. Bletsas, "Channel Coding for Increased Range Bistatic Backscatter Radio: Experimental Results", IEEE International Conference on RFID-Technology and Applications (RFID-TA), September 2014, Tampere, Finland.

[40] S.D. Assimonis, S.N. Daskalakis, and A. Bletsas, "Efficient RF Harvesting for Low-Power Input with Low-Cost Lossy Substrate Rectenna Grid", IEEE International Conference on RFID-Technology and Applications (RFID-TA), September 2014, Tampere, Finland.

[39] A.G. Dimitriou, S. Siachalou, A. Bletsas and J.N. Sahalos, "Automated RFID Network Planning with Site-Specific Stochastic Modeling and Particle Swarm Optimization", IEEE International Conference on RFID-Technology and Applications (RFID-TA), September 2014, Tampere, Finland.

[38] A. Igglezakis, A. Deligiannakis and A. Bletsas, "Geometric Monitoring for CSI Reduction in Amplify-and-Forward Relay Networks", IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), May 2014, Florence, Italy.

[37] S.D. Assimonis, E. Kampianakis and A. Bletsas, "Microwave Analysis and Experimentation for Improved Backscatter Radio", IEEE European Conference on Antennas & Propagation (EUCAP), April 2014, Hague, Netherlands.

[36] E. Kampianakis, S.D. Assimonis and A. Bletsas, "Network Demonstration of Low-cost and Ultra-low-power Environmental Sensing with Analog Backscatter", IEEE Radio Wireless Week Conference, January 2014, Newport Beach CA, USA.

[35] S.D. Assimonis and A. Bletsas, "Energy Harvesting with a Low-Cost and High Efficiency Rectenna for Low-Power Input", IEEE Radio Wireless Week Conference, January 2014, Newport Beach CA, USA.

[34] J. Kimionis, A. Bletsas and J.N. Sahalos, "Bistatic Backscatter Radio for Power-limited Sensor Networks", IEEE Global Communications Conference (GLOBECOM), December 2013, Atlanta, USA.

[33] C. Konstantopoulos, E. Kampianakis, E. Koutroulis and A. Bletsas, "Wireless Sensor Node for Backscattering Electrical Signals Generated by Plants", IEEE Sensors Conference, November 2013, Baltimore, USA.

[32] E. Kampianakis, I. Kimionis, K. Tountas, C. Konstantopoulos, E. Koutroulis, A. Bletsas, "Backscatter Sensor Network for Extended Ranges and Low Cost with Frequency Modulators: Application on Wireless Humidity Sensing", IEEE Sensors Conference, November 2013, Baltimore, USA. Selected among the best papers of the conference.

[31] E. Kampianakis, J. Kimionis, K. Tountas, A. Bletsas. “A Remotely Programmable Modular Testbed for Backscatter Sensor Network Research”, Fifth Workshop on Real-World Wireless Sensor Networks (REALWSN), September 2013, Como Lake, Italy.

[30] G. Sklivanitis, K. Alexandris and A. Bletsas, "Testbed for Non-Coherent, Zero-Feedback Distributed Beamforming", IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), May 2013, Vancouver, Canada.

[29] P. Alevizos, N. Fasarakis-Hilliard and A. Bletsas, "Cooperative Localization in Wireless Networks under Bandwidth Constraints", Asilomar Conference on Signals, Systems and Computers (ASILOMAR), November 2012, Pacific Grove, California, USA.

[28] J. Kimionis, A. Bletsas, J.N. Sahalos, "Bistatic Backscatter Radio for Tag Read-Range Extension", IEEE International Conference on RFID-Technology and Applications (RFID-TA), November 2012, Nice, France.

[27] A. G. Dimitriou, J. Kimionis, A. Bletsas and J.N. Sahalos, "A Fading-Resistant Method for RFID-Antenna Structural Mode Measurement", IEEE International Conference on RFID-Technology and Applications (RFID-TA), November 2012, Nice, France.

[26] J. Kimionis, A. Bletsas and J.N. Sahalos, "Design and Implementation of RFID Systems with Software Defined Radio", IEEE European Conference on Antennas & Propagation (EUCAP), March, 2012, Prague, Czech Republic.

[25] A. G. Dimitriou, A. Bletsas, J.N. Sahalos, "Practical Considerations of ASK Modulated Passive Tags", IEEE European Conference on Antennas & Propagation (EUCAP), March, 2012, Prague, Czech Republic.

[24] G. Sklivanitis and A. Bletsas, "Testing Zero-feedback Distributed Beamforming with a Low-Cost SDR Testbed", invited paper, Asilomar Conference on Signals, Systems and Computers (ASILOMAR), November 2011, Pacific Grove, California, USA.

[23] J. Kimionis, A. Bletsas, A. G. Dimitriou and G. N. Karystinos, "Inventory Time Reduction in Gen2 with Single-Antenna Separation of FM0 RFID Signals", IEEE International Conference on RFID-Technology and Applications (RFID-TA), September 2011, Sitges, Spain. Received 2nd best student paper award.

[22] A. G. Dimitriou, A. Bletsas and J. N. Sahalos, "On the Design of Passive RFID Tags for ASK Modulation", IEEE European Conference on Antennas & Propagation (EUCAP), April, 2011, Rome, Italy.

[21] A. C. Polycarpou, G. Gregoriou, L. Papaloizou, P. Polycarpou, A. Dimitriou, A. Bletsas and J. N. Sahalos, "A Healthcare Application Based on Passive UHF RFID Technology", IEEE European Conference on Antennas & Propagation (EUCAP), April 2011, Rome, Italy.

[20] A.C. Polycarpou, G. Gregoriou, A. Bletsas, A. Dimitriou, J. Sahalos, "A UHF Radio Frequency Identification (RFID) System for Healthcare: Design and Implementation", International ICST Conference on Wireless Mobile Communication and Healthcare (MOBIHEALTH), Oct. 2010, Ayia Napa, Cyprus.

[19] A.C. Polycarpou, G. Gregoriou, A. Dimitriou, A. Bletsas, I.N. Sahalos, L. Papaloizou and P. Polycarpou, "Design and Implementation of a Radio Frequency IDentification (RFID) System for Healthcare Applications", 12th Mediterranean Conference on Medical and Biological Engineering and Computing (MEDICON), May 2010, Porto Carras, Chalkidiki.

[18] A.G. Dimitriou, S. Siachalou, A. Bletsas and J. N. Sahalos, "An Efficient Propagation Model for Automatic Planning of Indoor Wireless Networks", IEEE European Conference on Antennas & Propagation (EUCAP), April 2010, Barcelona, Spain.

[17] A.G. Dimitriou, A. Bletsas, A.C. Polycarpou and J.N. Sahalos, "On Efficient UHF RFID Coverage Inside a Room", IEEE European Conference on Antennas & Propagation (EUCAP), April 2010, Barcelona, Spain.

[16] A. Bletsas, A.G. Dimitriou and J.N. Sahalos, "Backscattering Improvement of UHF RFID Tag Efficiency", IEEE International Workshop on Antenna Technology: Small Innovative Structures & Materials (IWAT), March 2010, Lisbon, Portugal.

[15] A. Bletsas, A. Lippman and J.N. Sahalos, "Simple, Zero-Feedback, Collaborative Beamforming for Emergency Radio", IEEE International Symposium on Wireless Communication Systems (ISWCS), September 2009, Siena, Italy. Selected as one of the five best papers of the conference.

[14] A. Bletsas, A.G. Dimitriou, J.N. Sahalos, "Reduced-Delay Interference-Aware Opportunistic Relaying", IEEE International Conference on Communications (ICC), June 2009, Dresden, Germany.

[13] A. Bletsas, S. Siachalou, J.N. Sahalos, "Anti-collision Tags for Backscatter Sensor Networks", 38th European Microwave Conference (EuMC), October 2008, Amsterdam, Netherlands.

[12] A. Bletsas, J.N. Sahalos, "Interference-Aware Opportunistic Relaying with Reactive Spectrum Sensing", invited paper, IEEE Personal Indoor Mobile Radio Communications Conference (PIMRC), September 2008, Cannes, France.

[11] G. Vannucci, A. Bletsas, D. Leigh, "Implementing Backscatter Radio for Wireless Sensor Networks", IEEE Personal Indoor Mobile Radio Communications Conference (PIMRC), September 2007, Athens, Greece.

[10] A. Bletsas, A. Khisti, M.Z. Win, "Low Complexity Virtual Antenna Arrays", ACM International Conference on Wireless Communications and Mobile Computing (IWCMC 2006), July 2006, Vancouver, Canada.

[9] A. Bletsas, A. Khisti, "The Diversity-Multiplexing Tradeoff in Cooperative Protocols with Relay Selection", MSRI Workshop on the Mathematics of Relaying, April 2006, Berkeley, USA.

[8] A. Bletsas, H. Shin, M.Z. Win, "Outage-Optimal Cooperative Communications with Regenerative Relays", invited paper, 40th Conference on Information Sciences and Systems (CISS), March 2006, Princeton, USA.

[7] A. Bletsas, H. Shin, M.Z. Win, A. Lippman, "Cooperative Diversity with Οpportunistic Relaying", IEEE Wireless Communications and Networking Conference (WCNC), April 2006, Las Vegas, USA.

[6] A. Bletsas, A. Lippman, D.P. Reed, "A Simple Distributed Method for Relay Selection in Cooperative Diversity Wireless Networks, based on Reciprocity and Channel Measurements", Proceedings of IEEE 61st Vehicular Technology Conference (VTC-Spring), May 30 - June 1 2005, Stockholm, Sweden.

[5] A. Bletsas and A. Lippman, "Spontaneous Synchronization in Multi-hop Embedded Sensor Networks: Demonstration of a Server-free Approach", Proceedings of IEEE Second European Workshop on Wireless Sensor Networks (EWSN), January 31 - February 2005, Istanbul, Turkey.

[4] A. Bletsas and A. Lippman, "Efficient Collaborative (Viral) Communication in OFDM Based WLANs", Proceedings of IST International Symposium on Advanced Radio Technologies (ISART), Institute of Standards and Technology, Boulder Colorado, March 2003.

[3] A. Bletsas, "Evaluation of Kalman Filtering for Network Time Keeping", Proceedings of 1st IEEE International Conference on Pervasive Computing and Communications (PerCom), Dallas-Fort Worth Texas, March 2003.

[2] E. Vaitsopoulos, A. Bletsas, J.N. Sahalos, "On the RFID Design with Passive Tags and a Butler Matrix Reader", poster, IEEE Conference on Electromagnetic Field Computation (CEFC), May 2008, Athens, Greece.

[1] B. Hubert, A. Bletsas, J. Jacobson, "Nano-Scale Structures Fabricated By All-Additive AFM -Assisted Nanoassembly", poster, Materials Research Society (MRS), April 2001, San Francisco, USA.