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arXiv 0901.1964cs.ITmath.IT
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非高斯干扰信道下的最优检测器

Optimal Detector for Channels with Non-Gaussian Interference

Jungwon Lee, Dimitris Toumpakaris, Hui-Ling Lou

摘要:

当发射机采用为单用户高斯信道设计的非高斯方案时,解决了高斯干扰信道中的检测问题。被认为是由一个单独的符号的符号检测器和一个硬解码器的结构。给出了这种结构,提出了一种最佳检测器,它与干扰感知的传统检测器,干扰感知的连续干扰消除(SIC)检测器和最小距离检测器进行了比较。分析和仿真表明,最佳检测器优于传统的和SIC检测器,它达到降低符号出错率,即使在存在强干扰。此外,在大多数情况下,最小距离检测器的性能几乎与最佳检测器一样好,并且复杂性明显降低。

英文摘要:

The detection problem in the Gaussian interference channel is addressed, when transmitters employ non-Gaussian schemes designed for the single-user Gaussian channel. A structure consisting of a separate symbol-by-symbol detector and a hard decoder is considered. Given this structure, an optimal detector is presented that is compared to an interferenceunaware conventional detector, an interference-aware successive interference cancellation (SIC) detector, and a minimum-distance detector. It is demonstrated analytically and by simulation that the optimal detector outperforms both the conventional and the SIC detector, and that it attains decreasing symbol error rates even in the presence of strong interference. Moreover, the minimum-distance detector performs almost as well as the optimal detector in most scenarios and is significantly less complex.

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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