Cooperative partners [13]H Zhu and G. Cao, " rDCF: A Relay-Enabled Medium ELZA ERKIP [ 93, M 96, SM,o5](e fireless Ad Hoc Network should be carefully i4 he e . ozoussefa fid h e wareless sihe ra teri ing degr rech selected along the Turkey, in iggr ing from Middle route so that 2004,http://www.csumd.edu/moustafa/papers/cs-ir.associatep6-199gshewaseringofRiceUniversityshe of electrical and computer engineenng [15]P Liu et al, "CoopMAC: A Cooperative MAC for Wire. optimality at both lessLanS,"tech.rep.,http://catt.polyedu/catt/pan d the 2004 C the link and path BIOGRAPHIES levels can be PEL LIU[S01](pliu@ photon poly. edu) completed his B.S. accomplished, while wireless networks SHIVENDRA S. PANWAR [S 82, M85, SM,] hoc networks is not ZHIFENG TAo (Soo] Jeff. tao@ photon poly. edu) received a compromised from Xi'an Jiaotong University, P R China, in 2000. Since Amherst, in 1983 and 1986, respectively. He joined the Electrical and Comp communications cations(CATT). He spent the summer of 1987 as a visiting scientist at the IBM T J Watson Research Center. Yorktown ZINAN LIN[500) (l ino3@utopia- poly.edu)received a BE ries, Holmdel, N. His research interests include the perfo cludes video systems over peer-to-peer networks, switch (NTU), Singapore, in 2001. From 199 p8t02 000 she wa ireless networks. He has served as secre awarded a research scholarship by NTU and worked as ry of the Technical Affairs Council of the IEEE Communica nt in the Center for tions Society(1992-1993)and is a member of the Technical School of Electronic and Electrical Engineering, NTU. Since 2001, she has been Ph. D. candidate in the Department of of two books, Network Management and Control, Vol. ll ty, Brooklyn, NY. Her general 994 and 1996, respectively), and co-author of TCP/IP Essen- ials: A Lab-Based Approach(Camb University Press, especially channel coding, diversity techniques, and CDMA Society Leonard G. Abraham Prize in the Field of Commun cations System IEEE Wireless Comm92 IEEE Wireless Communications • August 2006 [13] H. Zhu and G. Cao, “rDCF: A Relay-Enabled Medium Access Control Protocol for Wireless Ad Hoc Networks,” Proc. IEEE INFOCOM, Mar. 2005. [14] J. Yeo, M. Youssef, and A. Agrawala, “Characterizing the IEEE 802.11 Traffic: The Wireless Side,” Univ. of Maryland, College Park, res. rep. CS-TR-4570, Mar. 2004, http://www.csumd.edu/moustafa/papers/CS-IR- 4570.pdf [15] P. Liu et al., “CoopMAC: A Cooperative MAC for Wire￾less LANs,” Tech. rep., http//catt.poly.edu/CATT/pan war.html BIOGRAPHIES PEL LIU [S’01] (pliu@photon.poly.edu) completed his B.S. and M.S. degrees in electrical engineering at Xi’an Jiaotong University, China, in 1997 and 2000, respectively. He is a Ph.D. candidate in the Department of Electrical and Com￾puter Engineering of Polytechnic University, Brooklyn, NY. His research interests are in wireless communications and wireless networks. ZHIFENG TAO [S’00] (jeff.tao@ photon.poly.edu) received a B.E. degree in communication and information engineering from Xi’an Jiaotong University, P. R. China, in 2000. Since then, he has been a Ph.D. candidate in the Department of Electrical and Computer Engineering at Polytechnic Univer￾sity. He also received his M.S. degree in telecommunication networking from Polytechnic University in May 2002. His current research interests include wireless networking, medium access control, quality of service, and cooperative communications. ZINAN LIN [S’00] (zlin03@utopia.poly.edu) received a B.E degree in information engineering from Zhejiang Universi￾ty, Hangzhou, China, in 1998, and an M.E. degree in elec￾trical engineering from Nanyang Technological University (NTU), Singapore, in 2001. From 1998 to 2000 she was awarded a research scholarship by NTU and worked as a research assistant in the Center for Signal Processing, School of Electronic and Electrical Engineering, NTU. Since 2001, she has been Ph.D. candidate in the Department of Electrical and Computer Engineering, Polytechnic Universi￾ty, Brooklyn, NY. Her general research interests include wireless communications and digital signal processing, especially channel coding, diversity techniques, and CDMA sequence design. ELZA ERKIP [S’93, M’96, SM’05] (e1za@poly.edu) received M.S. and Ph.D. degrees in electrical engineering from Stan￾ford University in 1993 and 1996, respectively, and a B.S. degree in electrical and electronic engineering from Middle East Technical University, Turkey, in 1990. She joined Poly￾technic University in Spring 2000, where she is currently an associate professor of electrical and computer engineering. During 1996–1999 she was with the Department of Electri￾cal and Computer Engineering of Rice University. She received the 2004 Communications Society Stephen O. Rice Paper Prize in the field of communications theory, the NSF CAREER award in 2001, and the IBM Faculty Partnership Award in 2000. She is the Technical Program Co-Chair of the 2006 Communication Theory Workshop. She is also an Associate Editor of IEEE Transactions on Communications and a Publications Editor for IEEE Transactions on Informa￾tion Theory. Her research interests are in wireless commu￾nications, information theory, and communication theory. SHIVENDRA S. PANWAR [S’82, M’85, SM’00] (panwar@catt.poly.edu) received a B.Tech. degree in electri￾cal engineering from the Indian Institute of Technology, Kan￾pur, in 1981, and M.S. and Ph.D. degrees in electrical and computer engineering from the University of Massachusetts, Amherst, in 1983 and 1986, respectively. He joined the Department of Electrical Engineering at the Polytechnic Insti￾tute of New York, Brooklyn, NY (now Polytechnic University), where he is a professor in the Electrical and Computer Engi￾neering Department. Currently he is the director of the New York State Center for Advanced Technology in Telecommuni￾cations (CATT). He spent the summer of 1987 as a visiting scientist at the IBM T. J. Watson Research Center, Yorktown Heights, NY, and was a consultant to AT& T Bell Laborato￾ries, Holmdel, NJ. His research interests include the perfor￾mance analysis and design of networks. Current work includes video systems over peer-to-peer networks, switch performance, and wireless networks. He has served as Secre￾tary of the Technical Affairs Council of the IEEE Communica￾tions Society (1992–1993) and is a member of the Technical Committee on Computer Communications. He is a co-editor of two books, Network Management and Control, Vol. II, and Multimedia Communications and Video Coding (Plenum, 1994 and 1996, respectively), and co-author of TCP/IP Essen￾tials: A Lab-Based Approach (Cambridge University Press, 2004). He is a co-recipient of the 2004 IEEE Communications Society Leonard G. Abraham Prize in the Field of Communi￾cations Systems. Cooperative partners should be carefully selected along the route so that optimality at both the link and path levels can be accomplished, while spatial reuse in ad hoc networks is not compromised. ERKIP LAYOUT 8/3/06 1:24 PM Page 92