• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Annual Allerton Conference on Communication, Control, and Computing; 20040929-1001; Monticello,IL(US) >A BCJR-DFE Based Receiver for Achieving Near Capacity Performance on Inter Symbol Interference Channels
【24h】

A BCJR-DFE Based Receiver for Achieving Near Capacity Performance on Inter Symbol Interference Channels

机译：基于BCJR-DFE的接收机，可在符号间干扰信道上实现接近容量的性能

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A non-iterative receiver is proposed to achieve near capacity performance on inter-symbol interference channels. There are two main ingredients in the proposed design - ⅰ) the use of a BCJR-DFE equalizer which produces optimal soft estimates of the inputs to the ISI channel given all the observations from the channel and L past symbols exactly, where L is the memory in the ISI channel, ⅱ) The use of an encoder structure that ensures that L past symbols can be used in the DFE in an error free manner through the use of a capacity achieving code for a memoryless channel. This DFE based receiver has several advantages over an iterative (turbo) receiver such as - low complexity, codes that are optimized for memoryless channels can be used with channels with memory and finally the channel does not need to be known at the transmitter, making this a better choice than turbo equalizers when long latencies can be tolerated. This general principle also applies to other signal processing functions such as non-coherent detection, synchronization, timing recovery etc making the proposed encoder and receiver structure a viable alternative to iterative signal processing.
机译：提出了一种非迭代接收机，以在符号间干扰信道上实现接近容量的性能。提议的设计中有两个主要成分-ⅰ）使用BCJR-DFE均衡器，它给出了对ISI通道输入的最佳软估算，并给出了来自该通道的所有观测值，并且精确地给出了L个过去的符号，其中L是存储器ⅱ）使用编码器结构，该编码器结构通过为无记忆通道使用容量实现代码来确保可以在DFE中以无错误的方式使用L个过去的符号。这种基于DFE的接收机比迭代（turbo）接收机具有多个优势，例如-低复杂度，针对无内存信道优化的代码可以与具有内存的信道一起使用，并且最终无需在发射机处知道该信道，这使得在可以容忍较长延迟的情况下，这是比Turbo均衡器更好的选择。该一般原理还适用于其他信号处理功能，例如非相干检测，同步，定时恢复等，从而使所提出的编码器和接收器结构成为迭代信号处理的可行替代方案。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号