Lattice reduction aided tabu search with channel-dependent stopping criterion for MIMO systems

Sarfo Gyamfi, Jonghyen Baek, Kyungchun Lee

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

An initial solution based on lattice reduction (LR) and a novel stopping criterion for the tabu search (TS) detection algorithm are proposed for use in multiple input multiple output (MIMO) antenna systems. LR aided-detection is performed and its result is utilised as an initial solution to the TS algorithm, while a measure of the condition of the lattice-reduced channel is used as a criterion for early termination of the algorithm. On the basis of the simulation results, this approach outperforms other initial solutions by about 3.5 dB at a BER of 10^-3 for the 16-QAM 16×16 MIMO with only a slight increment in computational cost. The proposed stopping criterion reduces the complexity further with virtually no loss in BER performance.
Original languageEnglish
Pages (from-to)2062-2064
Number of pages3
JournalElectronics Letters
Volume51
Issue number24
DOIs
Publication statusPublished - 19 Nov 2015

Keywords

  • antenna arrays
  • error statistics
  • MIMO communication
  • quadrature amplitude modulation
  • search problems
  • wireless channels

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