ISI信道上带有外部Reed-Solomon码的栅格编码调制的低复杂度序列估计

2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233) Pub Date : 2001-08-26 DOI:10.1109/PACRIM.2001.953563

A. Al-Sanie, S. Alshebeili

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引用次数: 1

摘要

组合线性-维特比均衡器(CLVE)是一类在维特比算法(VA)之前采用线性滤波器的接收机，目的是将原始信道脉冲响应(CIR)形成较短的期望脉冲响应(DIR)，从而降低复杂度VA。CLVE技术最初是为了降低对码间干扰(ISI)信道上的非编码传输执行最大似然序列估计(MLSE)的VA的复杂性而提出的。在本文中，我们采用CLVE技术来降低在ISI信道上对栅格编码传输执行MLSE的VA的复杂性。在此基础上，研究了ISI信道上具有有效带宽的栅格内码和RS外码的高速率级联系统的简化状态序列估计。

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Reduced-complexity sequence estimation for trellis coded modulation with outer Reed-Solomon codes over ISI channels

The combined linear-Viterbi equalizer (CLVE) is a class of receivers employing a linear filter before the Viterbi algorithm (VA) in order to shape the original channel impulse response (CIR) to some shorter desired impulse response (DIR) which allows a lower complexity VA. The CLVE technique is originally proposed to reduce the complexity of VA that performs maximum likelihood sequence estimation (MLSE) to uncoded transmission over intersymbol interference (ISI) channels. In this paper, we adopt the CLVE technique to reduce the complexity of VA that performs MLSE to trellis coded transmission over ISI channels. Furthermore, reduced state sequence estimation for high rate concatenated systems with bandwidth efficient trellis inner codes and Reed-Solomon (RS) outer codes over ISI channels is investigated.

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2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233)

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