NDLI: Bounded Delay-Tolerant Space-Time Codes for Distributed Antenna Systems

Content Provider	IEEE Xplore Digital Library
Author	Yun Liu Wei Zhang Soung Chang Liew Pak-Chung Ching
Copyright Year	2002
Abstract	Distributed space-time codes (STCs) can achieve cooperative diversity in distributed antenna systems. But the path delay difference may cause diversity loss. In this paper, a family of asynchronous STC is proposed to achieve full diversity, given that the path delay difference is within a tolerance bound. The proposed code structure allows the overall decoding process to be decomposed into several independent sub-processes, which can be tackled by low-complexity maximum-likelihood decoders. Two code designs based on the Alamouti code and the Golden code are given for a system with two distributed antennas. Moreover, two designs based on orthogonal STC and fast group decodable STC are introduced for a system with four distributed antennas, with each transmitter having two antennas. Full diversity gain is proved for all code designs and their associated decoding complexities are analyzed. Simulations of the proposed codes confirm our theoretical results on full diversity gain.
Starting Page	4644
Ending Page	4655
Page Count	12
File Size	1599486
File Format	PDF
ISSN	15361276
Volume Number	13
Issue Number	8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Decoding Complexity theory Transmitting antennas Antenna arrays Delays Receivers full diversity Asynchronous cooperative communication space-time codes
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Electrical and Electronic Engineering Computer Science Applications

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