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arXiv 0811.0543cs.ITmath.IT
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基于分布式空时分组码的不完全解码转发协议

Incomplete decode-and-forward protocol using distributed space-time block codes

Charlotte Hucher, Ghaya Rekaya-Ben Othman, Ahmed Saadani

摘要:

在这项工作中,我们探讨了分布式空时码的解码和转发(DF)协议的介绍。第一个协议名为非对称DF。它基于两个不同长度的相位,定义为使信号可以在继电器处完全解码。这种策略带来了全分集,但符号率不是最佳的。为了解决这个问题,第二个协议名为不完全DF定义。它是基于一个不完整的解码在继电器减少第一阶段的长度。最后一种策略带来了全分集和全符号率。中断概率和仿真结果表明,不完全DF具有更好的性能比任何现有的DF协议和非正交放大转发(NAF)策略使用相同的空时码。此外,分集复用增益权衡(DMT)的这种新的DF协议被证明是相同的NAF之一。

英文摘要:

In this work, we explore the introduction of distributed space-time codes in decode-and-forward (DF) protocols. A first protocol named the Asymmetric DF is presented. It is based on two phases of different lengths, defined so that signals can be fully decoded at relays. This strategy brings full diversity but the symbol rate is not optimal. To solve this problem a second protocol named the Incomplete DF is defined. It is based on an incomplete decoding at the relays reducing the length of the first phase. This last strategy brings both full diversity and full symbol rate. The outage probability and the simulation results show that the Incomplete DF has better performance than any existing DF protocol and than the non-orthogonal amplify-and-forward (NAF) strategy using the same space-time codes. Moreover the diversity-multiplexing gain tradeoff (DMT) of this new DF protocol is proven to be the same as the one of the NAF.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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