Low-complexity iterative interference cancellation multiuser detection for overloaded MIMO OFDM IDMA system

Min Chen, Alister G. Burr

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

Abstract

In this paper, interleave-division multiple access (IDMA) is used for overloaded multiple-input multiple-output (MIMO) coded orthogonal frequency division multiplexing (OFDM) systems. An iterative interference cancellation multiuser detection (IIC-MUD) method is proposed, which has almost the same complexity but can achieve almost optimal (MAP) performance, much better than that of elementary signal estimation (ESE) method. The main idea of this IIC-MUD is the log-likelihood ratio (LLR) calculation, which is based on the channel impulse responses (CIRs). By the LLR convertor, we can obtain more reliable LLRs for the decoder, which can make full use of CIRs to obtain the channel gain. The performance of the proposed IIC-MUD is assessed through simulation results.

Original languageEnglish
Title of host publicationWSA 2013 - 17th International ITG Workshop on Smart Antennas
PublisherVDE VERLAG GMBH
ISBN (Electronic)9783800734665
Publication statusPublished - 2013
Event17th International ITG Workshop on Smart Antennas, WSA 2013 - Stuttgart, Germany
Duration: 13 Mar 201314 Mar 2013

Publication series

NameWSA 2013 - 17th International ITG Workshop on Smart Antennas

Conference

Conference17th International ITG Workshop on Smart Antennas, WSA 2013
Country/TerritoryGermany
CityStuttgart
Period13/03/1314/03/13

Bibliographical note

Funding Information:
VI. ACKNOWLEDGEMENTS The work described in this paper was supported in part by the UK Engineering and Physical Sciences Research Council under project no. EP/H016945/1.

Publisher Copyright:
© WSA 2013 - 17th International ITG Work. on Smart Antennas. All rights reserved.

Keywords

  • IDMA
  • MIMO
  • MUD
  • OFDM
  • PIC
  • RAKE

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