Matthew C. Valenti, Ph.D.
Associate Professor
Lane Department of Computer Science and Electrical Engineering
West Virginia University

[Main][Teaching][Research][Service]

Wireless Communications Research Lab
Turbo Codes
Publications

Journal Papers
[J16] D. Torrieri, S. Cheng, and M.C. Valenti, “Robust frequency hopping for interference and fading channels,” to appear in IEEE Transactions on Communications (accepted on Feb. 11, 2008).
[J15] K. Vardhe, D. Reynolds, and M.C. Valenti, “The performance of multi-user cooperative diversity in an asynchronous CDMA uplink,” IEEE Transactions on Wireless Communications, vol. 7, no. 5, May 2008, pp. 1930-1940.
[J14] R. Iyer Seshadri and M.C. Valenti, “Capacity-based parameter optimization of bit-interleaved coded CPM with differential detection,” IEEE Transactions on Vehicular Technology, vol. 57, no. 1, Jan. 2008, pp. 345-353.
[J13] S. Cheng, M.C. Valenti, and D. Torrieri, “Robust iterative noncoherent reception of coded FSK over block fading channels,” IEEE Transactions on Wireless Communications, vol. 6, no. 9, Sept. 2007, pp. 3142-3147.
[J12] S. Wei, D.L. Goeckel, and M.C. Valenti, “Asynchronous cooperative diversity,” IEEE Transactions on Wireless Communications, vol. 5, no. 6, June 2006, pp. 1547-1557.
[J11] B. Zhao and M.C. Valenti, “Position-based relaying with hybrid-ARQ for efficient ad hoc networking,”EURASIP Journal on Wireless Communications and Networking (Special Issue on Ad Hoc Networks: Cross-Layer Issues), vol. 5, no. 5, pp. 610-624, Dec. 2005.
[J10] M.C. Valenti and S. Cheng, “Iterative demodulation and decoding of turbo coded M-ary noncoherent orthogonal modulation,” IEEE Journal on Selected Areas in Communications (Special Issue on Differential and Noncoherent Wireless Communications), vol. 23, no. 9, pp. 1738-1747, Sept. 2005.
[J9] J. Sun and M.C. Valenti, “Joint synchronization and SNR estimation for turbo codes in AWGN channels,”IEEE Transactions on Communications, vol. 53, no. 7, pp. 1136-1144, July 2005.
[J8] B. Zhao and M.C. Valenti, “Practical relay networks: A generalization of hybrid-ARQ,” IEEE Journal on Selected Areas in Communications (Special Issue on Wireless Ad Hoc Networks), vol. 23, no. 1, pp. 7-18, Jan. 2005.
[J7] B. Zhao and M.C. Valenti, “Distributed turbo coded diversity for the relay channel,” IEE Electronics Letters, vol. 39, no. 10, pp. 786-787, May 15, 2003.
[J6] M.C. Valenti and J. Sun, “The UMTS turbo code and an efficient decoder implementation suitable for software defined radios,” International Journal on Wireless Information Networks, vol. 8, no. 4, pp. 203-216, Oct. 2001.
[J5] M.C. Valenti and B.D. Woerner, “Iterative channel estimation and decoding of pilot symbol assisted turbo codes over flat-fading channels,” IEEE Journal on Selected Areas in Communications, vol. 19, pp. 1697-1705, Sept. 2001.
[J4] M.C. Valenti and B.D. Woerner, “Iterative multiuser detection, macrodiversity combining, and decoding for the TDMA cellular uplink,” IEEE Journal on Selected Areas in Communications, vol 19, pp. 1570-1583, Aug. 2001.
[J3] N. Chandran and M.C. Valenti, “Three generations of wireless cellular systems,” IEEE Potentials, vol. 20, no. 1, pp. 32-35, Feb./March 2001
[J2] M.C. Valenti and B.D. Woerner, “Distributed multiuser detection for the TDMA cellular uplink,” IEE Electronics Letters, vol. 35, no. 21, pp. 1803-1804, Oct. 21, 1999.
[J1] M.C. Valenti and B.D. Woerner, “Refined channel estimation for coherent detection of turbo codes over flat-fading channels,” IEE Electronics Letters, vol. 34, no. 17, pp. 1648-1649, Aug. 20, 1998.

Book Chapters
[B2]M.C. Valenti, S. Cheng, and R. Iyer Seshadri, “Turbo and LDPC codes for digital video broadcasting,” Chapter 12 of Turbo Code Applications: A Journey from a Paper to Realization, Springer, 2005.
[B1]M.C. Valenti and J. Sun, “Turbo codes,” Chapter 12 of in Handbook of RF and Wireless Technologies, Edited by F. Dowla Editor, Newnes Press, 2004, pp. 375-399.

Conference Papers
[C57] D. Buckingham and M.C. Valenti, “The information-outage probability of finite-length codes over AWGN channels,” to appear in Proc. Conf. on Info. Sci. and Sys. (CISS), (Princeton, NJ), Mar. 2008.
[C56] M.C. Valenti, R. Doppalapudi, and D. Torrieri, “A genetic algorithm for designing constellations with low error floors,” to appear in Proc. Conf. on Info. Sci. and Sys. (CISS), (Princeton, NJ), Mar. 2008.
[C55] S. Cheng, M.C. Valenti, and D. Torrieri, “Coherent and multi-symbol noncoherent CPFSK: Capacity and code design,” in Proc. IEEE Military Commun. Conf. (MILCOM), (Orlando, FL), Oct. 2007. slides.
[C54] D. Torrieri and M.C. Valenti, “Constellation labeling maps for low error floors,” in Proc. IEEE Military Commun. Conf. (MILCOM), (Orlando, FL), Oct. 2007. slides.
[C53] Rohit Iyer Seshadri, S. Cheng, and M.C. Valenti, “The BICM capacity of coherent continuous-phase frequency shift keying,” in Proc. IEEE Vehicular Tech. Conf. (VTC), (Baltimore, MD), Oct. 2007. slides.
[C52] X. Chen, S. Gong, N.A. Schmid, and M.C. Valenti, “UAV based distributed ATR under realistic simulated environmental effects,” in Proc. SPIE Signal Processing, Sensor Fusion, and Target Recognition XVI, (Orlando, FL), Apr. 2007.
[C51] D. Torrieri, S. Cheng, and M.C. Valenti, “Robust frequency-hopping system for channels with interference and frequency-selective fading,” in Proc. IEEE Int. Conf. on Commun. (ICC), (Glasgow, Scotland), June 2007. slides.
[C50] R. Rajagopalan, D. Reynolds, M.C. Valenti, B.D. Woerner, “The impact of an antenna array in a relay network,” in Proc. IEEE Int. Conf. on Commun. (ICC), (Glasgow, Scotland), June 2007. slides.
[C49] S. Cheng, R. Iyer Sehshadri, M.C. Valenti, and D. Torrieri, “The capacity of noncoherent continuous-phase frequency shift keying,” in Proc. Conf. on Info. Sci. and Sys. (CISS), (Baltimore, MD), Mar. 2007. slides.
[C48] S.A. Ahmad and M.C. Valenti, “A practical hybrid-ARQ protocol using noncoherent orthogonal modulation,” in Proc. Conf. on Info. Sci. and Sys. (CISS), (Baltimore, MD), Mar. 2007. slides.
[C47] K.G. Vardhe, D. Reynolds, and M.C. Valenti, “Outage probability of a multi-user cooperation protocol in an asynchronous CDMA cellular uplink,” in Proc. Conf. on Info. Sci. and Sys. (CISS), (Baltimore, MD), Mar. 2007. slides.
[C46] S. Cheng and M.C. Valenti, “Union bound analysis of bit interleaved coded orthogonal modulation with differential precoding,” in Proc. Int. Symp. Inform. Theory (ISIT), (Seattle, WA), July 2006. slides.
[C45] R. Iyer Seshadri and M.C. Valenti, “A capacity-based approach for designing bit-interleaved coded GFSK with noncoherent detection,” in Proc. Int. Symp. Inform. Theory (ISIT), (Seattle, WA), July 2006. slides.
[C44] R. Iyer Seshadri and M.C. Valenti, “A capacity-based search for energy and bandwidth efficient bit-interleaved coded noncoherent GFSK,” in Proc. Virginia Tech Symp. on Wireless Personal Commun., (Blacksburg, VA), June 2006. slides.
[C43] T. Ghanim and M.C. Valenti, “The throughput of hybrid-ARQ in block fading under modulation constraints,” in Proc. Conf. on Info. Sci. and Sys. (CISS), (Princeton, NJ), Mar. 2006, slides.
[C42] R. Iyer Seshadri and M.C. Valenti, “Soft-in/soft-out noncoherent sequence detection for Bluetooth: Capacity, error rate and throughput analysis,”in Proc. IEEE Wireless Commun. & Networking Conf. (WCNC), (Las Vegas, NV), Apr. 2006, pp. 1354-1359. slides.
[C41] S. Cheng, M.C. Valenti, and D. Torrieri, “Turbo-NFSK: Iterative estimation, noncoherent demodulation, and decoding for fast fading channels,” in Proc. IEEE Military Commun. Conf. (MILCOM), (Atlantic City, NJ), Nov. 2005, pp. 3193-3199. slides.
[C40] S. Cheng and M.C. Valenti, “Macrodiversity packet combining for the IEEE 802.11a uplink,” in Proc. IEEE Wireless Commun. & Networking Conf. (WCNC), (New Orleans, LA), Mar. 2005, pp. 88-93. slides.
[C39] B. Zhao, R. Iyer Seshadri, and M.C. Valenti, “Geographic random forwarding with hybrid-ARQ for ad hoc networks with rapid sleep cycles,” in Proc. IEEE Global Telecommun. Conf. (GLOBECOM), (Dallas, TX), Dec. 2004, pp. 3047-3052. slides
[C38] S. Cheng and M.C. Valenti, “Bit-interleaved turbo-coded noncoherent orthogonal modulation with iterative demodulation and decoding: Capacity limits and convergence analysis,” in Proc. Asilomar Conf. on Signals, Sys., & Computers, (Pacific Grove, CA), Nov. 2004, pp. 2020-2024. slides.
[C37] J. Sun and M.C. Valenti, “Optimum frame synchronization for preamble-less packet transmission of turbo codes,”in Proc. Asilomar Conf. on Signals, Sys., & Computers, (Pacific Grove, CA), Nov. 2004, pp. 1126-1130. poster.
[C36] M.C. Valenti and B. Zhao, “Hybrid-ARQ based intra-cluster geographic relaying,” in Proc. IEEE Military Commun. Conf. (MILCOM), (Monterey, CA), Nov. 2004, pp. 805-811, invited paper. slides.
[C35] M.C. Valenti, E. Hueffmeier, B. Bogusch, and J. Fryer, “Towards the capacity of noncoherent orthogonal modulation: BICM-ID for turbo coded NFSK,” in Proc. IEEE Military Commun. Conf. (MILCOM), (Monterey, CA), Nov. 2004, pp. 1549-1555. slides.
[C34] S. Wei, D. Goeckel, and M. Valenti, “Asynchronous cooperative diversity,” in Proc. Conf. on Info. Sci. and Sys. (CISS), (Princeton, NJ), Mar. 2004.
[C33] G.J. Raux, A. Feliachi, and M.C. Valenti, “Telecommunication of stabilizing signals in power systems,” in Proc. North American Power Symposium (NAPS), (Rolla, MO), Oct. 2003.
[C32] B. Zhao and M.C. Valenti, “Some new adaptive protocols for the wireless relay channel,”in Proc. Allerton Conf. on Commun., Control, and Comp., (Monticello, IL), Oct. 2003.slides.
[C31] M.C. Valenti and B. Zhao, “Distributed turbo codes: Towards the capacity of the relay channel,” in Proc. IEEE Vehicular Tech. Conf. (VTC), (Orlando, FL), Oct. 2003, pp. 322-326.
[C30] B. Zhao and M.C. Valenti, “Cooperative diversity using distributed turbo codes,” in Proc. Virginia Tech Symp. on Wireless Personal Commun., (Blacksburg, VA), June 2003. slides
[C29] J. Sun and M.C. Valenti, “Synchronization of turbo codes based on online statistics,” in Proc. IEEE Int. Conf. on Commun. (ICC), (Anchorage, AK), May 2003, pp. 2733-2737. slides
[C28] B. Zhao and M.C. Valenti, “Convergence analysis of a new class of flexible hybrid concatenated codes,” in Proc. Southeastern Symp. Sys. Theory (SSST), (Morgantown, WV), Mar. 2003, pp. 283-287.
[C27] M.C. Valenti and N. Correal, “Exploiting macrodiversity in dense multihop networks and relay channels,” in Proc. IEEE Wireless Commun. & Networking Conf. (WCNC), (New Orleans, LA), Mar. 2003, pp. 1877-1882. slides
[C26] M.C. Valenti, “Improving uplink performance by macrodiversity combining packets from adjacent access points,” in Proc. IEEE Wireless Commun. & Networking Conf. (WCNC), (New Orleans, LA), Mar. 2003, pp. 636-641. slides
[C25] M.C. Valenti and M. Robert, “Improving the QoS of Bluetooth through turbo coding,” in Proc. IEEE Military Commun. Conf. (MILCOM), (Los Angeles, CA), Oct. 2002, pp. 1057-1061. slides
[C24] M.C. Valenti and M. Robert, “Custom coding, adaptive rate control, and distributed detection for Bluetooth,” in Proc. IEEE Vehicular Tech. Conf. (VTC), (Vancouver, BC), Sept. 2002, pp. 918-922. slides
[C23] S. Krishnamoorthy, M. Robert, S. Srikanteswara, M.C. Valenti, C. Anderson, and J.H. Reed, “Channel frame error rate for Bluetooth in the presence of microwave ovens,” in Proc. IEEE Vehicular Tech. Conf. (VTC), (Vancouver, BC), Sept. 2002, pp. 927-931. slides
[C22] N.S. Correal, J. Heck, and M.C. Valenti, “An analog turbo decoder for an (8,4) product code,” in Proc. IEEE Midwest Symp. on Circuits & Sys. (MWSCAS), (Tulsa, OK), Aug. 2002, pp. 632-635. slides
[C21] N. Chandran and M.C. Valenti, “Bridging the gap between parallel and serial concatenated codes,” in Proc. Virginia Tech Symp. on Wireless Personal Commun., (Blacksburg, VA), June 2002, pp. 145-154. slides
[C20] B. Naduvathuparambil, M.C. Valenti, and A. Feliachi, “Communication delays in wide area measurement systems,” in Proc. Southeastern Symp. Sys. Theory (SSST), (Huntsville, AL), Mar. 2002, pp. 118-122. slides
[C19] M.C. Valenti, M. Robert, and J.H. Reed, “On the throughput of Bluetooth data transmissions,” in Proc. IEEE Wireless Commun. & Networking Conf. (WCNC), (Orlando, FL), Mar. 2002, pp. 119-123. slides
[C18] B. Zhao and M.C. Valenti, “Per-survivor based detection of DPSK modulated high rate turbo codes over Rayleigh fading channels,” in Proc. Asilomar Conf. on Signals, Sys., & Computers, (Pacific Grove, CA), Nov. 2001, pp. 1026-1030, invited paper. slides
[C17] M.C. Valenti, “An efficient software radio implementation of the UMTS turbo codec,” in Proc. IEEE Int. Symp. on Personal, Indoor, & Mobile Radio Commun. (PIMRC), (San Diego, CA), Sept. 2001, pp. 108-113. slides
[C16] D. Baker and M.C. Valenti, “The impact of channel estimation errors on space time block codes,” in Proc. Virginia Tech Symp. on Wireless Personal Commun., (Blacksburg, VA), June 2001, pp. 175-186. slides
[C15] B. Zhao and M.C. Valenti, “Iterative demodulation and decoding of DPSK modulated turbo codes over Rayleigh fading channels,” in Proc. Virginia Tech Symp. on Wireless Personal Commun., (Blacksburg, VA), June 2001, pp. 259-270. slides
[C14] Y. Tang and M.C. Valenti, “Coded transmit macrodiversity: Block space-time codes over distributed antennas,” in Proc. IEEE Vehicular Tech. Conf. (VTC), (Rhodes, Greece), May 2001, pp. 1435-1438. slides
[C13] N. Chandran and M.C. Valenti, “Hybrid ARQ using serial concatenated convolutional codes over fading channels,” in Proc. IEEE Vehicular Tech. Conf. (VTC), (Rhodes, Greece), May 2001, pp. 1410-1414. slides
[C12] M.C. Valenti, “Inserting turbo code technology into the DVB satellite broadcasting system,” in Proc. IEEE Military Commun. Conf. (MILCOM), (Los Angeles, CA), Oct. 2000, pp. 650-654. slides
[C11] M.C. Valenti, “Iterative channel estimation for turbo codes over fading channels,” in Proc. IEEE Wireless Commun. & Networking Conf. (WCNC), (Chicago, IL), Sept. 2000, pp. 1019-1024, invited paper. slides
[C10] M.C. Valenti, “An optimal soft-output multiuser detection algorithm and its applications,” in Proc. Second Int. Symp. on Turbo Codes & Related Topics, (Brest, France), Sept. 2000, pp. 177-180. slides
[C9] Y. Wu and M.C. Valenti, “An ARQ technique using related parallel and serial concatenated convolutional codes,” in Proc. IEEE Int. Conf. on Commun. (ICC), (New Orleans, LA), June 2000, pp. 1390-1394. slides
[C8] M.C. Valenti and B.D. Woerner, “A bandwidth efficient pilot symbol technique for coherent detection of turbo codes over fading channels,” in Proc. IEEE Military Commun. Conf. (MILCOM), (Atlantic City, NJ), Nov. 1999, pp. 81-85. slides
[C7] M.C. Valenti, “Turbo codes and iterative processing,” in Proc. IEEE New Zealand Wireless Commun. Symp., (Auckland, New Zealand), Nov. 1998. slides
[C6] M.C. Valenti and B.D. Woerner, “Combined multiuser detection and channel decoding with base station diversity,” in Proc. IEEE Global Telecommun. Conf. (GLOBECOM), Commun. Theory Mini-Conf., (Sydney, Australia), Nov. 1998, pp. 137-142. slides
[C5] M.C. Valenti and B.D. Woerner, “Multiuser detection with base station diversity,” in Proc. IEEE Int. Conf. on Universal Personal Commun. (ICUPC), (Florence, Italy), Oct. 1998, pp. 1189-1194. slides
[C4] M.C. Valenti and B.D. Woerner, “Iterative multiuser detection for convolutionally coded asynchronous DS-CDMA,” in Proc. IEEE Int. Symp. on Personal, Indoor, & Mobile Radio Commun. (PIMRC), (Boston, MA), Sept. 1998, pp. 213-217. slides
[C3] M.C. Valenti and B.D. Woerner, “Performance of turbo codes in interleaved flat fading channels with estimated channel state information,” in Proc. IEEE Vehicular Tech. Conf. (VTC), (Ottawa, ON), May 1998, pp. 66-70. slides
[C2] M.C. Valenti and B.D. Woerner, “Combined multiuser reception and channel decoding for TDMA cellular systems,” in Proc. IEEE Vehicular Tech. Conf. (VTC), (Ottawa, ON), May 1998, pp. 1915-1919. slides
[C1] M.C. Valenti and B.D. Woerner, “Variable latency turbo codes for wireless multimedia applications,” in Proc. Int. Symp. on Turbo Codes & Related Topics, (Brest, France), Sept. 1997, pp. 216-219.

Recent Presentations
[P11]“Mutual information as a tool for the design, analysis, and testing of modern communication systems,” presented to Hughes Network Systems, (Germantown, MD), June 8, 2007. (ppt version)
[P10]“How Wireless Works, and why sometimes it doesn't,” presentation for IEEE student section, Feb. 14, 2007.
[P9]“Turbo and LDPC codes: Implementation, simulation, and standardization,” Virginia Tech Symp. on Wireless Personal Commun., (Blacksburg, VA), June 7, 2006. (ppt version)
[P8]“Distributed Simulation of Modern Communication Systems Using the Global Grid Exchange,” Teaming to Win Conference, Stonewall Jackson Resort (Walkersville, WV), June 1, 2006.
[P7]“Distributed Simulation of Modern Communication Systems Using the Global Grid Exchange,” West Virginia University Computing & Technology Symp., Apr. 12, 2006.
[P6]“Wireless communications research at WVU,” Mar. 31, 2006.
[P5]“Modern wireless network design based on constrained capacity,” Pittsburgh Signal Processing Society Seminar, University of Pittsburgh, April 20, 2005. (ppt version)
[P4]“How Wireless Works, and why sometimes it doesn't,” presentation for IEEE student section, Mar. 8, 2005.
[P3] “How to Get Published,” Lane Dept. of CSEE graduate seminar, Feb. 7, 2005.
[P2]“Coded-protocols for implementing cooperative diversity,” presented to Motorola Labs, (Schaumburg, IL), June 30, 2004, (ppt version)
[P1]“Scaling cooperative diversity to large networks,” presented at the NATO Workshop on Cross-Layer Issues in the Design of Tactical Mobile Ad Hoc Wireless Networks, (US Naval Research Laboratory, Washington, DC), June 2-3, 2004.

Dissertation
M.C. Valenti, “Iterative detection and decoding for wireless communications,” Ph.D. Dissertation, Bradley Dept. of Elect. & Comp. Eng., Virginia Tech, July 1999. slides