Computationally efficient 2-step QRM-MLD for single-carrier transmissions

Katsuhiro Temma, Tetsuya Yamamoto, Fumiyuki Adachi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Recently, a frequency-domain block signal detection (FDBD) using maximum likelihood detection (MLD) employing QR decomposition and M-algorithm (QRM-MLD) was proposed for the reception of the single-carrier (SC) signals transmitted over a frequency-selective fading channel. SC-FDBD with QRMMLD can significantly improve the bit error rate (BER) performance of SC transmission while reducing significantly the computational complexity compared to the MLD. However, its computational complexity is still high. In this paper, we propose a computationally efficient 2-step QRM-MLD SC-FDBD. Compared to conventional QRM-MLD, the number of symbol candidates can be reduced by using the decision made by minimum mean square error based frequency-domain equalization (MMSE-FDE). We evaluate the BER performance achievable by 2-step QRM-MLD and show that it can significantly reduce the computational complexity while keeping the BER performance almost the same as the conventional QRMMLD.

Original languageEnglish
Title of host publication12th IEEE International Conference on Communication Systems 2010, ICCS 2010
Pages782-786
Number of pages5
DOIs
Publication statusPublished - 2010
Event12th IEEE International Conference on Communication Systems 2010, ICCS 2010 - Singapore, Singapore
Duration: 2010 Nov 172010 Nov 19

Publication series

Name12th IEEE International Conference on Communication Systems 2010, ICCS 2010

Other

Other12th IEEE International Conference on Communication Systems 2010, ICCS 2010
CountrySingapore
CitySingapore
Period10/11/1710/11/19

Keywords

  • Block signal detection
  • MMSE-FDE
  • QRM-MLD
  • Single-carrier

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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