Rate-1 shift group-decodable STBC

Authors:
Tian Peng Ren;Yong Liang Guan;Chau Yuen;Er Yang Zhang
Affiliations:
National University of Defense Technology, Changsha, China;Nanyang Technological University, Singapore;Institute for Information Research, Singapore;National University of Defense Technology, Changsha, China
Venue:
ICICS'09 Proceedings of the 7th international conference on Information, communications and signal processing
Year:
2009

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Abstract

In asynchronous wireless relay networks, the spacetime codes (STC) applied should be delay-tolerant. Although several delay-tolerant STC have been presented, they are limited by high decoding complexity, low rate and/or low diversity gain. To overcome these limitations, a new class of delay-tolerant STC, called shift group-decodable space-time block codes (STBC), with code rate 1 for arbitrary transmit antenna number is proposed. Its systematic construction and the general solution to achieve full transmit diversity gain are derived. Simulation results are presented to illustrate its effectiveness in asynchronous channels.