High-performance turbo-MIMO system design with iterative soft-detection and decoding

Der Wei Yang, Jing Shiun Lin, Shih Hao Fang, Chia Fen Lin, Ming Der Shieh

研究成果: Conference contribution

4 引文 斯高帕斯(Scopus)

摘要

In turbo-multiple-input multiple-output (Turbo-MIMO) systems, the soft-output MIMO detector can provide the priori information to the turbo decoder. Unfortunately, if Rayleigh fading channels are applied, the induced unreliable priori information would cause the system performance degradation. In this paper, we proposed an iterative method to acquire the high reliability priori information from MIMO soft-detector in Turbo-MIMO systems. Similar to the conventional updating rules in the turbo decoding algorithm, we utilize the extrinsic information from the turbo decoder to update the log-likelihood ratios (LLRs) based on log-MAP algorithm in the list sphere decoding (LSD) algorithm. To reduce the overall computational complexity, different iteration profiles are also discussed. Simulation results show that the proposed Turbo-MIMO system can significantly improve the system performance compared to that of the conventional Turbo-MIMO system.

原文English
主出版物標題2012 Conference Handbook - Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2012
出版狀態Published - 2012 十二月 1
事件2012 4th Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2012 - Hollywood, CA, United States
持續時間: 2012 十二月 32012 十二月 6

出版系列

名字2012 Conference Handbook - Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2012

Other

Other2012 4th Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2012
國家/地區United States
城市Hollywood, CA
期間12-12-0312-12-06

All Science Journal Classification (ASJC) codes

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