LOW RATE SPACE-TIME TRELLIS CODES INPOWER LIMITED WIRELESSCOMMUNICATION SYSTEMS  

作　　者：WuGang WangHafeng 等 

机构地区：[1]NationalMobileCommunicationsResearchLab,SoutheastUniversity,Nanjing210096 [2]NokiaMobilePhones,Oulu,Finland,PL50,90571

出　　处：《Journal of Electronics(China)》2002年第3期241-247,共7页电子科学学刊（英文版）

基　　金：Supported by Nokia

摘　　要：Space-time trellis codes can achieve the best tradeoff among bandwidth efficiency, diversity gain, constellation size and trellis complexity. In this paper, some optimum low rate space-time trellis codes are proposed. Performance analysis and simulation show that the low rate space-time trellis codes outperform space-time block codes concatenated with convolutional code at the same bandwidth efficiency, and are more suitable for the power limited wireless communication system.Space-time trellis codes can achieve the best tradeoff among bandwidth effciency,diversity gain, constellation size and trellis complexity. In this paper, some optimum low rate space-time trellis codes are proposed. Performance analysis and simulation show that the low rate space-time trellis codes outperform space-time block codes concatenated with convolutional code at the same bandwidth effciency, and are more suitable for the power limited wireless communication system.

关 键 词：Space-time trellis codes Space-time transmit diversity Bandwidth efficiency 

分 类 号：TN92[电子电信—通信与信息系统]