Algebraic distributed differential space-time codes with low decoding complexity

Space-time block codes with low maximum-likelihood decoding complexity

Distributed Space Time Codes with Low Decoding Complexity for Asynchronous Relay Networks

Recently Li and Xia have proposed a transmission scheme for wireless relay networks based on the Alamouti space time code and orthogonal frequency division multiplexing to combat the effect of timing errors at the relay nodes. This transmission scheme is amazingly simple and achieves a diversity order of two for any number of relays. Motivated by its simplicity, this scheme is extended to a mor...

Reduced Complexity Decoding of n x n Algebraic Space-Time Codes

Algebraic space–time coding allows for reliable data exchange across fading multiple-input multiple-output channels. A powerful technique for decoding space–time codes is Maximum-Likelihood (ML) decoding, but well-performing and widely-used codes such as the Golden code often suffer from high ML-decoding complexity. In this article, a recursive algorithm for decoding general algebraic space–tim...

Full Diversity Space-Time Block Codes with Low-Complexity Partial Interference Cancellation Group Decoding

Abstract—Partial interference cancellation (PIC) group decoding proposed by Guo and Xia is an attractive low-complexity alternative to the optimal processing for multiple-input multipleoutput (MIMO) wireless communications. It can well deal with the tradeoff among rate, diversity and complexity of spacetime block codes (STBC). In this paper, a systematic design of full-diversity STBC with low-c...

A new lattice decoding for space time block codes with low complexity

We present an algorithm based on the closest point search (CPS) in lattices for decoding of space-time block codes (STBC). The modified CPS algorithm based on the Schnorr-Euchner variation of the Pohst method is used to perform the decoding of STBC. This method is shown to be substantially faster than other known sphere decoding methods. Also we exploit a fast method for decoding of orthogonal ...