衰落信道中空时网格码成对差错概率的研究  

Pairwise error probability of space-time trellis codes over fading channels

作　　者：王旭东[1] 陈丽萍[1] 庞福文[1] 

机构地区：[1]大连海事大学信息科学技术学院,辽宁大连116026

出　　处：《大连海事大学学报》2008年第2期45-48,共4页Journal of Dalian Maritime University

基　　金：国家自然科学基金资助项目(60672030);交通部应用基础研究资助项目(2007329225020)

摘　　要：为获得衰落信道中空时网格码(STTC)的性能估计,对STTC的成对差错概率(PEP)进行了研究.利用矩母函数(MGF)分析方法,推导出对于Rician和Nakagami-m不同衰落信道条件下STTC的PEP的单变量积分形式的准确表达式,并且分别对快衰落和慢衰落信道下PEP的性能进行了分析.研究表明,利用PEP单变量积分形式能够更精确地估计STTC的性能.The pairwise error probability （PEP） of space-time trellis codes （STTC） was investigated to evaluate the performance of STTC over fading channels. Using the moment generating function （MGF）-based approach, the exact expressions for the PEP of STTC over Rician and Nakagami-m fading channels were derived in terms of the single variable integral form. The PEP performance over fast and slow fading channels were also analyzed, respectively. Results show that the expressions for the PEP can be used to evaluate the performance of STTC more accurately.

关 键 词：空时网格码 衰落信道 成对差错概率 矩母函数 

分 类 号：TN92[电子电信—通信与信息系统]