空时格码迹准则在频选衰落信道下的证明  

The Proof of the Trace Criterion for Space-Time Trellis Codes in Frequency-Selective Fading Channels

作　　者：耿嘉[1] 曹秀英[1] 毕光国[1] 

机构地区：[1]东南大学移动通信国家重点实验室,南京210096

出　　处：《电子与信息学报》2007年第4期938-941,共4页Journal of Electronics & Information Technology

基　　金：国家自然科学基金(60272047)资助课题

摘　　要：迹准则是当系统中发射与接收天线数之积较大时设计空时格码的准则,该准则最初是为平衰落信道而设计的。该文证明了迹准则在频选衰落信道下仍然成立,且仿真亦表明当信道为频选衰落时,迹准则意义下好码的性能优于其它码的性能。When the product of the numbers of transmit and receive antennas is large, the design criterion for space-time trellis codes is the trace criterion. This criterion is originally designed for fiat fading channels only. In this paper, it is proved that the trace criterion also can be used in frequency-selective fading channels. The simulation results show that the good codes according to the.trace criterion have better performance than other codes, when the channel fading is frequency-selective.

关 键 词：空时格码 迹准则 频选衰落 

分 类 号：TN929.5[电子电信—通信与信息系统] TN911[电子电信—信息与通信工程]