频率选择性衰落信道上空时分组编码传输的单载波频域设计

Seventh International Symposium on Signal Processing and Its Applications, 2003. Proceedings. Pub Date : 2003-07-01 DOI:10.1109/ISSPA.2003.1224691

Changjiang Xu, T. Le-Ngoc

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引用次数: 0

摘要

提出了一种基于频率选择性衰落信道的单载波空时分组编码(STBC)传输系统的统一频域设计方案。采用分块传输的方法来缓解多径衰落引起的码间干扰(ISI)。分析了该方案在零填充和循环前缀块传输中的分集性能。研究表明，零填充STBC传输可以实现N/sub a/ (L+1)阶的分集，其中N/sub a/为发射天线个数和接收天线个数，L为信道传递函数阶数，而循环前缀STBC传输只能实现N/sub g/阶的分集。

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Single-carrier frequency-domain design of space-time block coding transmission over frequency-selective fading channels

A unified frequency-domain design scheme for single-carrier space-time block coding (STBC) transmission systems over frequency-selective fading channels is presented. The block transmission is used to mitigate the multipath fading induced intersymbol interference (ISI). The diversity performance of the presented scheme for zero-padding and cyclic prefix block transmissions is analyzed. It is showed that the zero-padding STBC transmission can achieve the diversity of order N/sub a/ (L+1), where N/sub a/ is the number of both transmit and receive antennas and L is the order of the channel transfer function, while the cyclic prefix STBC transmission only achieves the diversity of order N/sub g/.

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Seventh International Symposium on Signal Processing and Its Applications, 2003. Proceedings.

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