A novel message passing based MIMO-OFDM data detector with a progressive parallel ICI canceller

Chao Wang Huang*, Pang An Ting, Chia-Chi Huang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

A joint design of message passing MIMO data detector/decoder with progressive parallel inter-carrier interference canceller (PPIC) based on factor graph for OFDM-based wireless communication systems is proposed. By exchanging messages both in space domain and frequency domain, the proposed algorithm can suppress inter-antenna interferences and cancel inter-carrier interferences iteratively and progressively. With a proper designed message passing schedule and random interleaver, the short cycle problem is solved. Computer simulations show that the performance of the proposed message passing MIMO detector outperforms MMSE-SIC MIMO detector. The performances of PPIC, both in perfect channel estimation and imperfect channel estimation cases, are compared with the standard PIC architecture and the ICI self-canceller. The proposed PPIC is superior to PIC both in computational complexity and system architecture. The parallel structure of PPIC is similar to a systolic array. The proposed algorithm potentially leads to a very-high-speed detector/decoder. It is very suitable for VLSI implementation and it is a potential candidate for data detection/decoding in future high data rate, high mobility, wireless MIMO-OFDM communication systems.

Original languageEnglish
Article number5719528
Pages (from-to)1260-1268
Number of pages9
JournalIEEE Transactions on Wireless Communications
Volume10
Issue number4
DOIs
StatePublished - 1 Apr 2011

Keywords

  • channel estimation error
  • data detection
  • factor graph
  • ICI cancellation
  • message passing
  • MIMO-OFDM

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