【24h】

Efficient Channel Shortening Equalizer Computation

机译:高效的信道缩短均衡器计算

获取原文
获取原文并翻译 | 示例

摘要

Channel shortening is often necessaryrnfor demodulation of multicarrier signals, complexityrnreduction of maximum likelihood sequence estimationrn(MLSE), and can be used to suppress interferencernin multiuser detection. The Maximum ShorteningrnSNR (MSSNR) and Minimum Mean Squared Errorrn(MMSE) designs for channel shortening are popularrnin the literature due to their ease of implementationrnand near-optimality. This paper proposes a methodrnto reduce the complexity of computing the matricesrnin the MSSNR design by a factor of 140 (for typicalrnADSL parameters) relative to the methods of Wu,rnArslan, and Evans, for a total reduction of a factorrnof 4000 relative to the brute force approach, withoutrndegrading performance. A similar technique isrnpresented for the MMSE design, reducing the matrixrncomputation by a factor of 16 (for typical ADSL parameters).
机译:对于多载波信号的解调,复杂度的降低,最大似然序列估计的降低(MLSE),信道缩短通常是必不可少的,并且可用于抑制多用户检测中的干扰。用于信道缩短的最大缩短SNR(MSSNR)和最小均方误差(MMSE)设计由于易于实现和接近最优而在文献中广受欢迎。本文提出了一种方法,相对于Wu,rnArslan和Evans的方法,将MSSNR设计中矩阵的计算复杂度降低了140倍(对于典型的rnADSL参数),相对于蛮力而言,总系数降低了4000方法,不会降低性能。为MMSE设计提供了一种类似的技术,将矩阵计算减少了16倍(对于典型的ADSL参数)。

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