Diversity-multiplexing tradeoff optimal codes for OFDM-based asynchronous cooperative networks

Francis Lu*

*Corresponding author for this work

研究成果: Conference contribution

摘要

An asynchronous cooperative network where different time delays among nodes exist is considered in this paper. With OFDM modulation, it is first shown that the diversity-multiplexing tradeoff (DMT) achieved by the non-orthogonal selection decode-and-forward (NSDF) protocol for this network is the same as that for the synchronous one. In sharp contrast to the currently available complicated approximately universal "matrix" codes, a systematic construction of an extremely simple "vector" code is proposed. Given the transmitted codeword vector, the same codeword will be sent by all nodes during transmission, hence it will greatly reduce the complexities of relay deployment and decoding. Furthermore, it is proved that the proposed scheme achieves the optimal DMT of the NSDF protocol for this asynchronous cooperative network.

原文English
主出版物標題Proceedings - 2008 IEEE International Symposium on Information Theory, ISIT 2008
頁面1701-1705
頁數5
DOIs
出版狀態Published - 29 九月 2008
事件2008 IEEE International Symposium on Information Theory, ISIT 2008 - Toronto, ON, Canada
持續時間: 6 七月 200811 七月 2008

出版系列

名字IEEE International Symposium on Information Theory - Proceedings
ISSN(列印)2157-8101

Conference

Conference2008 IEEE International Symposium on Information Theory, ISIT 2008
國家Canada
城市Toronto, ON
期間6/07/0811/07/08

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  • 引用此

    Lu, F. (2008). Diversity-multiplexing tradeoff optimal codes for OFDM-based asynchronous cooperative networks. 於 Proceedings - 2008 IEEE International Symposium on Information Theory, ISIT 2008 (頁 1701-1705). [4595278] (IEEE International Symposium on Information Theory - Proceedings). https://doi.org/10.1109/ISIT.2008.4595278