UP	Paper 866	US-W-N	DOWN
On Space-Time Block Codes from Coordinate Interleaved Orthogonal Designs
Tellambura,Chintha		University of Alberta
Dao,Dung		University of Alberta
Space-time block codes (STBC) using coordinate interleaved orthogonal designs (CIOD) proposed recently by Khan and Rajan allow single-complex symbol decoding while offering higher data rates than orthogonal STBC. In this paper, we present the equivalent channels of CIOD codes. A new maximum likelihood metric is also derived, which is simpler than the one shown by Khan and Rajan. The exact symbol pair-wise error probability and a tight union bound on symbol error rate are derived. The tight union bound can be used to analyze the performance of CIOD codes with arbitrary constellations. We provide new optimal rotation angles based on minimizing the union bound for various constellations. Furthermore, a new signal design combining signal rotation and power allocation is presented for rectangular quadrature amplitude modulation.
Dung Ngoc Dao received the B.Eng. degree in communications engineering from Hanoi University of Technology, Hanoi, Vietnam, in 1995 and the M. Eng. degree in Telecommunications from Asian Institute of Technology (AIT), Thailand, in 2002. He was with Siemens Information and Communications Networks Vietnam and held various positions from 1995 to 2001. From September 2003, he is with the Department of Electrical and Computer Engineering, University of Alberta, Canada working toward the Ph.D. degree in communications. His research interests include space-time coding, multicarrier transmission, and error control coding.