基于PBCC传输方式的WLAN接收机简化设计  

Simplified Receiver Design for WLAN System with Packet Binary Convolutional Coding Transmission

作　　者：马雯[1] 

机构地区：[1]中国电子科技集团公司第五十研究所,上海200063

出　　处：《现代电子技术》2009年第11期53-55,共3页Modern Electronics Technique

摘　　要：对于采用分组二进制卷积编码(PBCC)传输方式的无线局域网(WLAN)系统,其接收机通常由预滤波器及均衡器两部分组成。预滤波器通常采用白化匹配滤波器(WMF),以使整个系统满足最小相位条件;均衡器普遍采用减状态均衡算法,以取得算法复杂性与MLSE算法性能之间的折衷。为了降低预滤波环节的计算复杂度,提出一种简单的采用迫零准则设计预滤波器的方法。仿真结果表明,该方法可以大大降低接收机的复杂度,且接收性能与原有设计方法基本相当。For WLAN system with Packet Binary Convolutional Coding（PBCC） transmission, the receiver is composed of two parts：pre- filter and reduced state equalizer. Whitened Matched Filter（WMF） is generally used as the prefilter to make the whole system meet minimum phase requirement. The reduced state equalizer is adopted to reduce the complexity of MLSE. In order to reduce the computation burden of pre -filter process, a new pre- filter design method is proposed, which uses zero- forcing rule to calculate the pre - filter coefficients. Computer simulation results indicate that when such receiver design is adopted, the complexity of the receiver is decreased greatly, while performance of the receiver is comparative with the traditional design method.

关 键 词：分组二进制卷积编码 预滤波器 减状态均衡 迫零准则 

分 类 号：TN929.5[电子电信—通信与信息系统]