A lattice-reduction aided max-log list demapper for iterative coded MIMO receiver

Tung Jung Hsieh, Wern Ho Sheen, Sin-Horng Chen, Jen Yuan Hsu

研究成果: Conference contribution同行評審

摘要

The max-log list demapper has been widely employed in the implementation of a coded multiple-input multiple-output (MIMO) receiver, where only a candidate-list of signal vectors is examined in the likelihood-ratio calculation to reduce complexity. Traditionally, the candidate-list is generated in the original-lattice domain which, unfortunately, results in a severe degradation in the performance of demapper if the channel is in ill-condition. In this paper, a new lattice-reduction aided max-log list demapper is proposed for iterative receivers in which the candidate-list is generated after a successive cancellation of multi-layer interference in the lattice-reduced domain. Thanks to the newly designed metric and search algorithm for the generation of the candidate-list, the proposed demapper provides significant gains over the existing methods, especially for the cases with a small list size and/or under a spatially-correlated channel. The prior information coming out of the decoder is also exploited to lower the complexity of the demapper.

原文English
主出版物標題Proceedings - 2014 International Symposium on Computer, Consumer and Control, IS3C 2014
發行者IEEE Computer Society
頁面1069-1073
頁數5
ISBN(列印)9781479952779
DOIs
出版狀態Published - 1 一月 2014
事件2nd International Symposium on Computer, Consumer and Control, IS3C 2014 - Taichung, Taiwan
持續時間: 10 六月 201412 六月 2014

出版系列

名字Proceedings - 2014 International Symposium on Computer, Consumer and Control, IS3C 2014

Conference

Conference2nd International Symposium on Computer, Consumer and Control, IS3C 2014
國家Taiwan
城市Taichung
期間10/06/1412/06/14

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