Achievable diversity gain of interference channel

S. H. Song, J. Zhong, K. B. Letaief

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

1 Citation (Scopus)

Abstract

The optimal DMT (diversity and multiplexing tradeoff) of interference channel is still unknown. In this paper, we investigate the maximum diversity gain of interference channel and try to answer two questions. Firstly, it is known that no two links can achieve their maximum DoF (degree of freedom) simultaneously in an interference channel. The question is whether two links can achieve their maximum diversity gains simultaneously over MIMO or diagonal interference channel? Secondly, it has been shown in the literature that, with IA (interference alignment) and single-beam transmission, only one-side diversity gain (transmit or receive) is achievable in MIMO interference channel. The question is whether IA is optimal in achieving diversity gain and whether both of the transmit and receive diversity gains of MIMO interference channel can be obtained simultaneously? The major contribution of this paper is to show that, although two links in MIMO interference channel can not obtain their maximum diversity gains at the same time, both the transmit and receive diversity gains are achievable. On the other hand, two links in diagonal interference channel can obtain their maximum channel freedoms at the same time, which correspond to the maximum diversity gains.

Original languageEnglish
Title of host publication2013 IEEE Wireless Communications and Networking Conference, WCNC 2013
Pages3072-3076
Number of pages5
DOIs
Publication statusPublished - 21 Aug 2013
Event2013 IEEE Wireless Communications and Networking Conference, WCNC 2013 - Shanghai, China
Duration: 7 Apr 201310 Apr 2013

Publication series

NameIEEE Wireless Communications and Networking Conference, WCNC
ISSN (Print)1525-3511

Other

Other2013 IEEE Wireless Communications and Networking Conference, WCNC 2013
CountryChina
CityShanghai
Period7/4/1310/4/13

Keywords

  • Interference alignment
  • MIMO interference channel
  • diagonal interference channel

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Song, S. H., Zhong, J., & Letaief, K. B. (2013). Achievable diversity gain of interference channel. In 2013 IEEE Wireless Communications and Networking Conference, WCNC 2013 (pp. 3072-3076). [6555052] (IEEE Wireless Communications and Networking Conference, WCNC). https://doi.org/10.1109/WCNC.2013.6555052