一种多载波CDMA系统，用于对抗频率选择性衰落MIMO信道中的信道阻塞

Proceedings of the Fifth IEEE International Symposium on Signal Processing and Information Technology, 2005. Pub Date : 2005-12-21 DOI:10.1109/ISSPIT.2005.1577080

T. Fujino, J. Nakamura

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引用次数: 0

摘要

针对平坦衰落多输入单输出(MISO)信道中存在的信道阻塞问题，提出了一种用于移动通信下行链路的多载波码分多址(MC-CDMA)方案。本文将上述方法推广到频率选择性衰落多输入多输出信道的情况。为了获得更好的误码率性能和便于信号检测，提出了一种改进方案。采用不同的检测方法对系统的误码率性能进行了数值计算。在不降低时间、频率和传输(Tx)功率效率的情况下，即使遇到信道阻塞，该系统也能以相对较好的误码率提取所有Tx数据

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A multicarrier CDMA system for combating channel blocking in frequency-selective fading MIMO channel

Recently we have proposed a multi-carrier code division multiple access (MC-CDMA) scheme for the downlink of mobile communications to combat the channel blocking in flat fading multi-input single-output (MISO) channels. In this paper, the previous proposal is extended to the case of frequency-selective fading multi-input multi-output (MIMO) channels. An enhanced scheme is also proposed to obtain better bit error rate (BER) performance and to facilitate signal detection. BER performance of the proposed system using different detection methods is evaluated by numerical calculation. Without decreasing time, frequency, and transmit (Tx) power efficiencies, the proposed system allows us to extract all the Tx data with relatively good BER even when channel blocking is encountered

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Proceedings of the Fifth IEEE International Symposium on Signal Processing and Information Technology, 2005.

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