UP Paper 1771 US-M-IDOWN
Efficient Space-Time Codes from Cyclic Division Algebras
Kumar,P VijayUniversity of Southern California
Vinodh,KIndian Institute of Science
Elia,PetrosUniversity of Southern California
An overview of space-time code construction based on cyclic division algebras (CDA) is presented. Applications of such space-time codes to the construction of codes optimal under the diversity-multiplexing gain (D-MG) tradeoff, to the construction of the so-called perfect space-time codes, to the construction of optimal space-time codes for the ARQ channel as well as to the construction of codes optimal for the cooperative relay network channel are discussed. We also present a construction of optimal codes based on CDA for a class of Orthogonal Amplify and Forward (OAF) protocols for the cooperative relay network.

P. Vijay Kumar is currently a Professor in the ECE Department of the Indian Institute of Science, Bangalore, on leave of absence from the University of Southern California (USC). He obtained his B.Tech and M. Tech from IIT Kharagpur and Kanpur and his Ph.D. from USC. Since 1994 he has been a tenured Full Professor in EE-Systems at USC with a joint appointment in the Mathematics Department. His current research interests include: space-time codes for wireless MIMO antenna communication, low-density parity-check (LDPC) codes, CDMA, codes for optical CDMA and sensor networks. A CDMA pseudorandom sequence family introduced in a 1996 paper co-authored by him is now part of the 3rd Generation W-CDMA Standard. He received the USC School-of-Engineering Senior Research Award as well as the 1995 IEEE Information Theory Society's Prize Paper Award for co-authoring a 1994 paper that provided a solution to a long-standing mystery in coding theory. He is a Fellow of the IEEE. Petros Elia received the B.Sc. degree in electrical engineering from the Illinois Institute of Technology, Chicago, in 1997. During 1997-99 he worked as a consultant for MIOD Technologies, Chicago. He received the M.Sc. and Ph.D. degrees in electrical engineering from the University of Southern California, Los Angeles, in 2001 and 2006, respectively. His current research interests include communication and cooperation in wireless networks, MIMO systems and information theory. K. Vinodh received his B.E degree in Electronics and Communication from PSG College of Technology, Coimbatore in 2003. From 2003 to 2005 he worked as a Software Engineer for Honeywell Technology Solutions Limited., Bangalore and Ittiam Systems, Bangalore. Since 2005 he is pursuing post graduation in Electrical Communication Engineering Department at the Indian Institute of Science, Bangalore. His current research interests include cooperative communication systems and information theory.