Concatenated space-time block coding with trellis coded modulation using a delay processor

Yeong Luh Ueng, Yu Lung Wu, Ruey Yi Wei

研究成果: 雜誌貢獻期刊論文同行評審

5 引文 斯高帕斯(Scopus)

摘要

It is known that tail-biting codes T′ constructed from trellis coded modulation (TCM) with a delay processor can achieve large minimum Euclidean distances. In this paper, concatenated space-time block coding (STBC) with T′ for multiple-input multiple-output (MIMO) and MIMO-OFDM (orthogonal frequency-division multiplexing) systems is investigated. We propose an improved system which is implemented by inserting a specific block interleaver between the encoders of coded modulation and STBC. We also propose sliding-window-type iterative decoding using partial hard-decision feedback (SW-IDPHF) with low complexity to decode T′, which provides better error performance as compared to sliding-window-type iterative decoding using full hard-decision feedback (SW-IDFHF). In addition, we apply sliding-window-type iterative decoding using soft-decision feedback (SW-IDSF) to T′ for improved error performance. The decoder of concatenated system based on T′ can converge faster and provide better ultimate error performance as compared to the case of BICM under various channel conditions for either MIMO or MIMO-OFDM systems.

原文???core.languages.en_GB???
頁(從 - 到)4452-4463
頁數12
期刊IEEE Transactions on Wireless Communications
6
發行號12
DOIs
出版狀態已出版 - 12月 2007

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