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ISI Estimation Using Iterative MAP for Faster-Than-Nyquist Transmission

나이퀴스트 율보다 빠른 전송 시스템에서 반복 MAP을 이용한 ISI 추정 기법

  • Kang, Donghoon (Dept. of Information Communications Eng., Chungnam National University) ;
  • Kim, Haeun (Dept. of Information Communications Eng., Chungnam National University) ;
  • Park, Kyeongwon (Dept. of Information Communications Eng., Chungnam National University) ;
  • Lee, Arim (Dept. of Information Communications Eng., Chungnam National University) ;
  • Oh, Wangrok (Dept. of Information Communications Eng., Chungnam National University)
  • Received : 2017.03.25
  • Accepted : 2017.04.28
  • Published : 2017.05.31

Abstract

In this paper, we propose an inter-symbol interference (ISI) estimation scheme based on the maximum a posteriori (MAP) algorithm for faster-than-Nyquist (FTN) systems. Unfortunately, the ISI estimator based on the MAP algorithm requires relatively high computational complexity. To reduce the complexity of the MAP based ISI estimator, we propose a hybrid ISI estimation scheme based on the MAP and successive interference cancellation (SIC) algorithms. The proposed scheme not only offers good ISI estimation performances but also requires reasonably low complexity.

Acknowledgement

Supported by : 충남대학교

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