【摘要】 分析了频率选择性衰落信道中 ,MC CDMA(多载波 码分多址 )系统下行链路采用相位均衡、最大比合并以及受控均衡等 3种均衡技术时系统的误码率性能。给出了相应的数值计算结果和计算机模拟结果。从此可知 ,采用最佳门限受控均衡时 ,系统误码率性能最好 ,频谱效率最高更多还原

【Abstract】 The BER(Bot Error Rate)performance is evaluated of the MC-CDMA system employing such equalization techniques as phase Equalization(PE),Maximum Ratio Combining(MRC) or Controlled Equalization(CE) within its downlink as the frequeney-selecive channel.Numerical calculation and computer scmidation results are given correspordingly.It has been shown that the controlled Equalization with an optimum threshold outperforms other equalization techniques in terms of system BER performance and spectrum officieneg.更多还原