arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2006.05084cs.ITcs.CCmath.IT
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空间调制系统的可靠检测

Reliable Detection for Spatial Modulation Systems

Ibrahim Al-Nahhal, Octavia A. Dobre, Salama Ikki

摘要:

空间调制(SM)是一种很有前途的多输入多输出系统,用于提高频谱效率。最大似然(ML)解码器联合检测发送的SM符号,这具有高复杂度。本文提出了一种新的基于树搜索的可靠球形译码器(RSD)算法。RSD算法的基本思想是减少树搜索的规模,然后在减少的树搜索中执行智能搜索方法来找到解。建议RSD算法提供了一个显着降低解码复杂度相比,ML解码器和现有的解码器以及。此外,RSD算法提供了一个灵活的比特出错率(BER)性能和解码复杂度之间的权衡,以便为广泛的实际硬件实现是可靠的。对RSD算法的误码性能和译码复杂度进行了分析,并进行了蒙特卡罗仿真。

英文摘要:

Spatial modulation (SM) is a promising multiple-input multiple-output system used to increase spectral efficiency. The maximum likelihood (ML) decoder jointly detects the transmitted SM symbol, which is of high complexity. In this paper, a novel reliable sphere decoder (RSD) algorithm based on tree-search is proposed for the SM system. The basic idea of the proposed RSD algorithm is to reduce the size of the tree-search, and then, a smart searching method inside the reduced tree-search is performed to find the solution. The proposed RSD algorithm provides a significant reduction in decoding complexity compared to the ML decoder and existent decoders as well. Moreover, the RSD algorithm provides a flexible trade-off between the bit error rate (BER) performance and decoding complexity, so as to be reliable for a wide range of practical hardware implementations. The BER performance and decoding complexity analysis for the RSD algorithm are studied, and Monte Carlo simulations are then provided to demonstrate the findings.

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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