块多维M-PSK调制码的多级解码

ITS'98 Proceedings. SBT/IEEE International Telecommunications Symposium (Cat. No.98EX202) Pub Date : 1998-08-09 DOI:10.1109/ITS.1998.718438

N.L. Guerrero, J. Portugheis

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引用次数: 0

摘要

葡萄牙人(1991)提出了一种分组多维M-PSK调制码，并构造了一些8-PSK调制码。与使用二维调制的码相比，多级译码具有更好的相位对称性和更低的一次误差系数。然而，性能和解码复杂性之间的权衡并没有得到彻底的研究。本文对在AWGN信道上构造的码进行了多级解码方案的性能比较。得到了这些方案的阻塞误差概率(P/sub B/)上界，并通过仿真验证了它们的严密性。其中一种方案在P/sub B/=10/sup -4/时比未编码的4-PSK具有3.9 dB的编码增益，在具有类似参数的二维8-PSK码的基础上具有0.3 dB的增益，但解码复杂性的增加是可以接受的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Multistage decoding of block multidimensional M-PSK modulation codes

A class of block multidimensional M-PSK modulation codes was proposed by Portugeis (1991) and some 8-PSK codes were constructed. In comparison with codes using two-dimensional modulation, the constructed codes showed better phase symmetry properties and lower first error coefficients with multistage decoding. However, the trade-off between performance and decoding complexity was not thoroughly investigated. This paper presents a performance comparison of multistage decoding schemes for the constructed codes on an AWGN channel. Upper bounds to block error probability (P/sub B/) for these schemes are obtained and their tightness confirmed by simulation. One of the schemes has a coding gain of 3.9 dB over uncoded 4-PSK at P/sub B/=10/sup -4/ and a gain of 0.3 dB over a two-dimensional 8-PSK code with similar parameters at the cost of an acceptable increase in decoding complexity.

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ITS'98 Proceedings. SBT/IEEE International Telecommunications Symposium (Cat. No.98EX202)

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