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首页> 外文期刊>International journal of communication systems >Improved error performance of a 3/4-Sezginer space-time block codes
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Improved error performance of a 3/4-Sezginer space-time block codes

机译：提高了3/4-Sezginer空间 - 时间块代码的误差性能

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摘要

The Alamouti space-time block code (STBC) achieves full diversity gain at a rate of 1/2. However, the Alamouti scheme does not provide multiplexing gain. The Silver code offers both diversity and multiplexing gain. It has a minimum normalization determinant of 1/7. The Golden code is another STBC that offers both diversity and multiplexing gain. The Golden code is ranked higher than the Silver code because of its lower minimum normalization determinant of 1/5, however, the golden code suffers from a high detection complexity in the modulation order of M-4. The 3/4-Sezginer code is another STBC, which compromises between the Alamouti scheme and the Golden code in terms of diversity gain and multiplexing gain. The 3/4-Sezginer code achieves full diversity and half of multiplexing gain. The uncoded space-time labeling diversity (USTLD) is a recent scheme that improves the error performance when applied to the STBC in multiple-input multiple-output (MIMO) systems and will be applied to the 3/4-Sezginer STBC to improve the error performance in this paper. The theoretical error probability for both the 3/4-Sezginer STBC and the improved system is formulated using the union bound in this paper. The theoretical error probabilities of both 16-QAM and 64-QAM are validated through Monte Carlo simulation. The simulation and theoretical results show that the proposed system with 4 N-R can achieve an SNR gain of 1 dB for 16-QAM and 1.2 dB 64-QAM at a bit error rate (BER) of 10(-6).
机译：Alamouti时空块代码（STBC）以1/2的速率实现完全的分集增益。但是，Alamouti方案不提供多路复用增益。银代码提供多样性和多路复用增益。它具有1/7的最小标准化决定簇。黄金代码是另一个提供多样性和多路复用增益的STBC。由于其较低的最小归一化决定因子为1/5，黄金代码排名高于银代码，但是，黄金代码在M-4的调制顺序中遭受了高的检测复杂性。 3/4-Sezgner代码是另一个STBC，它在Alamouti方案和金色代码之间妥协在多样性增益和复用增益方面。 3/4-Sezgner代码实现了全部多样性和多路复用增益的一半。未编码的时空标记分集（USTLD）是最近的一个方案，可以在多输入多输出（MIMO）系统中应用于STBC时改善误差性能，并且将应用于3/4-Sezginer SCBC以改善本文中的错误性能。 3/4-Sezginer STBC和改进系统的理论误差概率使用本文的联合配制。通过Monte Carlo仿真验证了16-QAM和64-QAM的理论误差概率。仿真和理论结果表明，具有4 n-R的所提出的系统可以以10（-6）的误码率（BER）为16-QAM的SNR增益为1 dB，1.2dB 64-QAM。

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