New Spreading Transforms for Fading Channels

机译：衰落信道的新扩展变换

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We introduce a new class of symbol-spreading transforms that are well-suited for use in error-control coding systems operating in fading channels. These unitary transforms have the property that they allow for the unambigous determination of input symbols from just a single correctly received output symbol. The transforms can be represented using factor graphs that allow for "fast" encoding. Our simulations show that on channels with fading or interference, systems based on these new transforms can greatly outperform previously proposed systems that use Walsh-Hadamard transforms.

机译：我们介绍了一类新的符号扩展变换，非常适合在衰落信道中运行的错误控制编码系统中使用。这些单一变换具有允许仅从一个正确接收的输出符号中明确确定输入符号的特性。可以使用允许“快速”编码的因子图来表示变换。我们的仿真表明，在具有衰落或干扰的信道上，基于这些新变换的系统可以大大优于先前提出的使用Walsh-Hadamard变换的系统。

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来源
《Annual Allerton Conference on Communication, Control, and Computing; 20040929-1001; Monticello,IL(US)》|2004年|P.963-972|共10页
会议地点 MonticelloIL(US)
作者
Jonathan S. Yedidia; Karunakar Pedagani; Andreas F. Molisch;
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Mitsubishi Electric Research Laboratories 201 Broadway, 8th floor Cambridge, MA 02139;

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原文格式 PDF
正文语种 eng
中图分类通信;
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New Spreading Transforms for Fading Channels

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