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PROFESSIONAL CONTRIBUTIONS:

IEEE Fellow (2006 - present), IEEE Senior Member (1997 - 2005), Member (1995 - 1996), Student Member (1993 - 1994).

Editorial Work for Technical Journals:

• Associate Editor for Wireless Communication Theory for IEEE Transactions on Communications, April 1998 – August 2006.

• Leading Guest Editor for IEEE Journal on Selected Areas in Communications : special issues on Signal Processing for Wireless Communications I/II, vol. 16, No. 8, October/ No. 9, December 1998.

• Leading Guest Editor for EURASIP Journal on Applied Signal Processing: special issue on Multi-carrier Communications and Signal Processing, No. 10, August 2004.

• Editorial Board Member of EURASIP Journal on Applied Signal Processing, February 2001 – June 2004.

• Leading Guest Editor for special issues on Cognitive Wireless Networks for Elsevier Journal of Computer Networks, March 2008.

• Guest Editor for special issues on Cognitive Radio Enabled Communications and Networks for Journal of Communications by Academic Publisher, November 2009.

• Guest Editor for special issues on Cognitive Radio for Proceedings of IEEE, April and May 2009.

• Associate Editor for Signal Processing for Communications for IEEE Transactions on Signal Processing, April 2009 – April 2011.

• Guest Editor for special issues on Cognitive Radio for IEEE Communications Magazine, September 2010 and March 2011.

• Area Editor of Transmission I for IEEE Transactions on Wireless Communications, December 2009 – present.

• Guest Editor for IEEE Journal on Selected Areas in Communications: special issues on Cognitive Radio Networks, February and April 2011.

• Leading Guest Editor for IEEE Journal on Selected Areas in Communications: Special Issues on Energy-Efficiency Wireless Communications, vol. 29, No. 8, September 2011.

Professional Activities:

• Session Organizer and/or Chair at IEEE 1998, 2001, 2002, 2004, and 2005 International Conference on Communications and IEEE 1998, 2000, 2002, 2003, and 2004 Global Telecommunications Conference.

• Technical Program Member (TPC):

• International Program Committee Member of Third International Conference on Information, Communications & Signal Processing (ICICS 2001) in Singapore.

• TPC Member of CTA C&N Annual Symposium 2003.

• TPC Member of the 2004 Ninth International Conference on Communication Systems.

• TPC Member of IEEE 2004 Global Telecommunications Conference.

• TPC Member of The 2005 IEEE Workshop on Signal Processing Advances in Wireless Communications.

• TPC Member of IEEE 2005 International Conference on Communications.

• TPC Member of IEEE 2005 Global Telecommunications Conference.

• International Program Committee (IPC) of International Conference on Information, Communications, and Signal Processing (ICICS 2005).

• TPC Member of The 63rd (2006 May) IEEE Vehicular Technology Conference.

• TPC Member of IEEE 2006 International Conference on Communications.

• TPC Member of 2006 IEEE Radio and Wireless Conference.

• TPC member of IEEE 2007 International Conference on Communications.

• TPC Member of the 65th (2007 May) IEEE Vehicular Technology Conference.

• TPC Member of the 3rd International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CrownCom 2008), Singapore, May 2008.

• TPC Member of IEEE 2008 International Conference on Communications.

• Leadership:

• Treasurer of IEEE 2002 Communication Theory Workshop (CTW'0) in Florida.

• Vice-Chair for tutorials of The 5th International Symposium on Wireless Personal Multimedia Communications (WPMC'02) at Honolulu, Hawaii.

• Vice-Chair of the TPC of IEEE 2003 International Conference on Communications (ICC'03) at Anchorage, Alaska.

• Session Chair at IEEE 2003 International Symposium on Personal, Indoor and Mobile Radio Communications.

• Chair of Wireless Communication Systems Subcommittee at 2004 IEEE Radio and Wireless Conference.

• Co-Chair of the TPC of 2007 IEEE Radio and Wireless Conference.

• Chair of Wireless Communications Track at 2006 International Conference on Communications, Circuits, and Systems (ICCCS'06).

• Tutorial Chair of IEEE 2007 Wireless Communications and Networking Conference.

• Co-Chair of Signal Processing Symposium at IEEE 2007 Global Telecommunications Conference.

• Track Chair of Wireless Communications at IEEE 2007 Military Communications Conference.

• Technical Program Chair of 2008 International Conference on Communications, Circuits, and Systems (ICCCS'08).

• Technical Program Chair of 2009 International Conference on Communications, Circuits, and Systems (ICCCS'09).

• Tutorial Chair of IEEE 2010 International Conference on Communications.

• Technical Program Co-Chair of The 2011 IEEE Workshop on Signal Processing Advances in Wireless Communications.

• Member of the Fellow (Evaluation) Committee of IEEE Vehicular Technology Society (2006 – present).

Member or Chair of:

• Research Committee of ECE (August 2000 – July 2001).

• Graduate Committee of ECE (August 2001 – July 2002).

• Seminar Committee of ECE (August 2002 – July 2003).

• Graduate Student Recruitment Committee (August 2003 – July 2004).

• Seminar Committee of ECE (Chair) (August 2004 – July 2005).

• Faculty Honors Committee (August 2005 – July 2006).

• Graduate Student Recruitment (August 2006 – July 2009).

PATENTS:

• “Adaptive antenna arrays for orthogonal frequency division multiplexing systems,” granted, October 1999, US Patent No.: 5,973,642.
• “System and method for joint coding and decision feedback equalization,” granted, December 1999, US Patent No.: 6,012,161.
• “Methods and systems for symbol estimation in a receiver,” granted, October 2001, US Patent No.: 6,301,315.
• “Method and apparatus for channel estimation for multicarrier systems,” granted, December 2001, US Patent No.: 6,327,314.
• “Channel estimation for OFDM with transmitter diversity,” granted, October 2002, US Patent No.: 6,473,393.
• “System for near optimal joint channel estimation and data detection for COFDM systems,” granted, November 2002, US Patent No.: 6,477,210.
• “Pilot-symbol-aided channel estimation for OFDM in wireless systems,” granted, November 2003, US Patent No.: 6,654,429.
• “Clustered OFDM with channel estimation,” granted, September 2004, US Patent No.: 6,795,392.
• “Methods and systems for symbol timing recovery,” granted, November 2005, US Patent No.: 6,970,524.
• “Channel estimation for wireless systems with multiple transmit antennas,” granted, March/October 2006, US Patent No.: 7,012,966/7,127,001.
• “MIMO OFDM system,” granted, June 2006, US Patent No.: 7,068,628.
• “Method for near optimal joint channel estimation and data detection for COFDM systems,” granted, August 2006, US Patent No.: 7,099,413/ granted December 2008, US Patent No.: 7,460,620.
• “Optimum training sequences for wireless systems,” granted, September 2006, US Patent No.: 7,103,115.
• “Pilot-aided channel estimation for OFDM in wireless systems,” granted, November 2007, US Patent No.: 7,292,651.
• “Estimation channel impulse response and equalizer coefficients in UWB communication systems,” granted, April 2008, US Patent No.: 7,356,100.
• “Interference suppression for OFDM-based UWB communication,” granted, April 2008, US Patent No.: 7,355,959.
• “Method for coding multiple data systems in multiple-input, multiple-output communication systems,” International Patent No.: WO2005/117319 A1; Europe Patent No.: EP1639741 (granted March 2006); China Patent No.: 200580000222 (granted June 2006).
• “Minimizing feedback rate for channel state information in MIMO systems,” granted, April 2008, US Patent No.: 7,359,470.
• “Channel estimation for wireless systems without matrix inversion,” granted Sept. 2009, US Patent No.: 7,583,761(T).
• Near optimal joint channel estimation and data detection for COFDM systems,” granted August 2006, US Patent No.: 7,099,413/ granted May 2011, US Patent No.: 7,940,852(T).
• “Power allocation in a MIMO system without channel state information feedback,” granted July 2011, US Patent No.: 7,983,352(H).
• Cross-talk cancellation in cooperative wireless relay networks,” granted Sept. 2011, US Patent No.: 8,014,263(MERL).

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