Modulation and Coding for Linear Gaussian Channels
Modulation and Coding for Linear Gaussian Channels
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DOI：
10.1109/9780470544907.ch13
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
Sergio VerdÂ;S. McLaughlin
中科院分区：
文献类型：
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作者：
Sergio VerdÂ;S. McLaughlin
香农对线性高斯通道容量的确定对后世的研究人员提出了巨大的挑战。本文调查了过去半个世纪如何应对这一挑战。讨论了正交最小带宽调制技术和信道容量。回顾了低信噪比 (SNR) 通道的二进制编码技术和高 SNR 通道的非二进制编码技术。对最近的发展进行了调查，这些发展现在允许在任何线性高斯信道上接近容量。这些新的接近容量的技术包括turbo编码和解码、多级编码以及用于符号间干扰信道的组合编码/预编码。
Shannon's determination of the capacity of the linear Gaussian channel has posed a magnificent challenge to succeeding generations of researchers. This paper surveys how this challenge has been met during the past half century. Orthogonal minimum-bandwidth modulation techniques and channel capacity are discussed. Binary coding techniques for low-signal-to-noise ratio (SNR) channels and nonbinary coding techniques for high-SNR channels are reviewed. Recent developments, which now allow capacity to be approached on any linear Gaussian channel, are surveyed. These new capacity-approaching techniques include turbo coding and decoding, multilevel coding, and combined coding/precoding for intersymbol-interference channels.