摘要
在无线通信中,由于Turbo卷积码存在错误平层,在BER要求比较低时,一般采用Turbo乘积码(TPC)。基于Turbo乘积码,探讨了其增强型方案(eTPC),并给出eTPC迭代译码算法。在AwGN信道下进行性能仿真,结果表明,eTPC随着迭代次数的增加,性能曲线收敛;在码率较高的情况下,eTPC比TPC编码增益高出近1 dB。
In the wireless communication, because of the ＂error floor＂ of TCC, TPC is used at low BER as a rule. This paper discuses enhanced TPC and presents its iterative decoding algorithm. The simulation on the AWGN channel shows that the performance curve is convergent at increasing iteration times, and eTPC outperform TPC near 1 dB at high code rate.
出处
《重庆邮电大学学报（自然科学版）》
2007年第B06期11-13,24,共4页
Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition)
基金
国家自然科学基金资助(60572176)
