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Track Chair, iConnect, CSI 45th Annual Convention, November 2010.
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Working Group Member, IEEE 802.1 Standards WG, 2009-10.
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Chair, National Conference on Communications, 2008.
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Chairman, WG-4 Broadband Wireless Consortium of India.
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Member, Technical Advisory Committee, Center for Excellence in Wireless Technology, Chennai 2008.
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Technical Program Committee of ADCOMP 1998 and 1999.
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Technical Program Committee of HiPC 2002, 2003, 2004.
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Technical program Committee of CIT 2002, 2003.
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Technical Program Committee of ICBN 2003, 2004, 2006.
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Technical program Committee of IEEE WCNC 2005, 2006, 2007.
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Technical Program Committee of IEEE GLOBECOM 2008, 2009, 2010.
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Technical Program Committee of WISARD 2009.
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Technical Program Committee of IEEE ICC 2010.
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Technical Program Committee of IEEE ANTS 2008 (Tutorial Chair), 2009.
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Technical Pprogram Committee of IEEE VTC 2010.
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Reviewers for IEEE Communications Letters, IEEE Transactions on Networking, IEEE Transactions on Wireless Communications, IEEE Transactions on Mobile Computing, IEE Proceedings and IEEE Communications magazine, INFOCOM, ACM MobiHoc, GLOBECOM, SPCOM, Electronic Letters.