机构地区: 东南大学信息科学与工程学院无线电工程系
出 处: 《电子学报》 1996年第1期63-67,共5页
摘 要: 本文分析了室内无线多径衰落信道中差分网格编码调制(TMC)直扩多址通信系统(DS/SSMA)的性能。分析中采用特征函数法和留数定理计算序列差错概率,用高斯近似分析多址干扰和多径干扰。本文最后给出了误码率的理论分析结果和计算机模拟结果,并与常规的未编码直扩系统性能对比。 In this paper,the performance of the DMPSK/SSMA systems with trellis-coded modulation over indoor channel is evaluated. The Gaussian approximation is employed to analyze the multipath interference. The pairwise error probability is obtained by means of the Laplac transform and the residue theorem.The bit error probability of the coded SSMA systems are presented and compared with that of the uncoded DMPSK/SSMA systems.