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arXiv cs/0504015cs.ITmath.IT
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具有判决反馈检测的分组收发器设计

Design of Block Transceivers with Decision Feedback Detection

Fang Xu, Tim Davidson, Jian-Kang Zhang, K. Max Wong

摘要:

本文提出了一种方法,用于联合设计的发射机-接收机对逐块通信系统,采用(块内)判决反馈检测。我们提供了封闭形式的发射机-接收机对,同时最大限度地减少算术均方误差(MSE)在决策点(假设完美的反馈),几何MSE,和一个均匀的比特出错率的系统在中等到高的信号-噪声比。单独的表达式适用于“迫零”和"最小MSE“(MMSE)判决反馈结构。在MMSE的情况下,所提出的设计也最大化的高斯互信息,并建议,可以接近的容量的块传输系统使用相同的(高斯)码(的独立实例)的每个元素的块。我们的模拟研究表明,建议的收发器执行显着优于标准收发器,并且它们保留其性能优势,在存在误差传播。

英文摘要:

This paper presents a method for jointly designing the transmitter-receiver pair in a block-by-block communication system that employs (intra-block) decision feedback detection. We provide closed-form expressions for transmitter-receiver pairs that simultaneously minimize the arithmetic mean squared error (MSE) at the decision point (assuming perfect feedback), the geometric MSE, and the bit error rate of a uniformly bit-loaded system at moderate-to-high signal-to-noise ratios. Separate expressions apply for the ``zero-forcing'' and ``minimum MSE'' (MMSE) decision feedback structures. In the MMSE case, the proposed design also maximizes the Gaussian mutual information and suggests that one can approach the capacity of the block transmission system using (independent instances of) the same (Gaussian) code for each element of the block. Our simulation studies indicate that the proposed transceivers perform significantly better than standard transceivers, and that they retain their performance advantages in the presence of error propagation.

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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