HARQ throughput enhancement using maximum likelihood block detection with recursive QR packet combining and M-algorithm for single-carrier MIMO

Tetsuya Yamamoto, Kazuki Takeda, Fumiyuki Adachi

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

4 Citations (Scopus)

Abstract

For achieving very high-speed and high quality packet transmission, the joint use of multi-input multi-output (MIMO) spatial multiplexing and hybrid automatic repeat request (HARQ) is very effective. The HARQ throughput depends on the packet combining scheme. In this paper, we consider a single-carrier (SC) MIMO and propose a maximum likelihood block detection using recursive QR packet combing and M-algorithm called recursive QRM-MLBD. We will show, by computer simulation, the recursive QR packet combing provides a better throughput performance than the conventional bit-level log likelihood ratio (LLR) packet combining. We also compare the achievable throughput performance of proposed recursive QRM-MLBD to that of the frequency-domain detection based on the minimum mean square error criterion (MMSED).

Original languageEnglish
Title of host publication2011 8th International Workshop on Multi-Carrier Systems and Solutions, MC-SS 2011
DOIs
Publication statusPublished - 2011 Jul 20
Event2011 8th International Workshop on Multi-Carrier Systems and Solutions, MC-SS 2011 - Herrsching, Germany
Duration: 2011 May 32011 May 4

Publication series

Name2011 8th International Workshop on Multi-Carrier Systems and Solutions, MC-SS 2011

Other

Other2011 8th International Workshop on Multi-Carrier Systems and Solutions, MC-SS 2011
CountryGermany
CityHerrsching
Period11/5/311/5/4

Keywords

  • HARQ
  • M-algorithm
  • MIMO
  • QR decomposition
  • SC

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Communication

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