Lattice reduction-aided successive interference cancelation for MIMO interference channels

Jaehyun Park, Bruno Clercks, Joohwan Chun, Byung Jang Jeong

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

In multiple-input-multiple-ouput (MIMO) interference channels (IFCs), interference alignment (IA) with zero-forcing (ZF) linear detection can be used to achieve the maximum degrees of freedom (DoFs). However, ZF linear detection usually degrades the performance due to the noise enhancement in practical systems. In this paper, we propose lattice reduction (LR)-aided successive interference cancelation (SIC) in conjunction with IA over lattice for three-user (and extendable to K-user) MIMO IFCs in which the interfering signals aligned over the lattices are detected and canceled rather than nulled out. To complete the proposed LR-aided SIC method, the detection ordering and the precoding matrix that minimize the mean square error are also determined.

Original languageEnglish
Article number6720210
Pages (from-to)4131-4135
Number of pages5
JournalIEEE Transactions on Vehicular Technology
Volume63
Issue number8
DOIs
Publication statusPublished - 2014 Oct 1
Externally publishedYes

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Keywords

  • Interference alignment
  • interference cancelation
  • interference channel
  • lattice reduction

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Aerospace Engineering
  • Automotive Engineering
  • Computer Networks and Communications
  • Applied Mathematics

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