A Modified Iterative Equalization Scheme based on Precoding
This paper proposes a modified iterative equalization (MIE) scheme based on precoding. First we analyze and compare the performance of the improved MAX-Log-MAP (I-MLM) algorithm called MIE-I-MLM scheme and two traditional equalization algorithms in MIE scheme. Second, based on the good understanding of the performance of precoding and MIE-I-MLM scheme, we exploit precoding in MIE-I-MLM, and then find that the performance of precoded MIE-I-MLM is obviously better than that of non-precoded and can even exceed the bound of an ISI-free channel in higher SNR, while its performance is lower than the one of non-precoded in low SNR. Therefore, we propose a novel scheme to get better performance by using a mixture of precoded and nonprecoded scheme. Both analytical and simulation results demonstrate that the proposed novel scheme can achieve better performance without increase in computational complexity.
Inter-symbol interference (ISI) maximum a posteriori (MAP) precoding turbo equalization (TE).
Shuangshuang Han Dongfeng Yuan Xiang Cheng
School of Information Science and Engineering,Shandong University,Jinan,Shandong,P.R.China Joint Research Institute for Signal and Image Processing,School of EPS,Heriot-Watt University,Edinbu
国际会议
The IET 2nd International Conference on Wireless,Mobile & Multimedia Networks(第二届IET国际无线移动多媒体网络会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）