A Modified Iterative Packet Combining Scheme for Intersymbol Interference Channels
We study Iterative Combining (IC) technique for hybrid Automatic Repeat reQuset (ARQ) scheme over Inter-Symbol Interference (ISI) channels. By utilizing the EXtrinsic Information Transfer (EXIT) chart, we study the performance of the IC and find that the IC technique has a very good convergence behavior in the first little iteration, but it has a bad error floor, especially at the low Signal-to-Noise Ratio (SNR). In this paper, we propose a modified IC scheme to overcome the shortcoming of the traditional IC. We study the receiver from another aspect in order to acquire a serial concatenation turbo-like scheme, and then we can combine the parallel (IC) and the serial concatenation turbo-like scheme together to propose a modified IC scheme. In this modified IC scheme, the EXIT chart as a balance switch between the two turbo-like schemes. It is shown that the proposed modified IC scheme provides excellent performance both analytically and through simulations without any computational complexity increase.
Cheng Xiang Yuan Dong-feng Wang Cheng-Xiang
Sch. of Information Science & Engineering Shandong University Jinan, Shandong, 250100, P.R. China Sch. of Information Science & Engineering Shandong University Jinan, Shandong, 250100, P.R. China;St Sch. of Engineering & Physical Sciences Heriot-Watt University Edinburgh EH14 4AS, UK
国际会议
2006 International Conference on Communications,Circuits and Systems(第四届国际通信、电路与系统学术会议)
广西桂林
英文
712-716
2006-06-25（万方平台首次上网日期，不代表论文的发表时间）