Opportunistic interference alignment effects in cooperative broadcast of multiple-source

Saeed Bagheri, Anna Scaglione

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

Abstract

In this paper we are concerned with a scenario in which multiple messages (K) are concurrently flooding a dense wireless network. Rather than using standard packet switching we assume that the nodes relay cooperatively the messages, if they are able to decode them. Our objective is to propose and analyze a scheme that exploits the alignment of interference that opportunistically arises in the relay process. More specifically, each receiver observes the K messages over D dimensions through an MIMO random channel. For each message, there exists an MIMO channel matrix that is associated with the interference. The key idea is to use the spatial occurrence of MIMO interference matrices that have a high condition number to design good beamformers to decode the messages. We refer to this effect as opportunistic interference alignment. We show that this scheme can result in successful broadcast.

Original languageEnglish (US)
Title of host publicationConference Record of the 44th Asilomar Conference on Signals, Systems and Computers, Asilomar 2010
Pages1607-1611
Number of pages5
DOIs
StatePublished - Dec 1 2010
Externally publishedYes
Event44th Asilomar Conference on Signals, Systems and Computers, Asilomar 2010 - Pacific Grove, CA, United States
Duration: Nov 7 2010Nov 10 2010

Publication series

NameConference Record - Asilomar Conference on Signals, Systems and Computers
ISSN (Print)1058-6393

Other

Other44th Asilomar Conference on Signals, Systems and Computers, Asilomar 2010
CountryUnited States
CityPacific Grove, CA
Period11/7/1011/10/10

ASJC Scopus subject areas

  • Signal Processing
  • Computer Networks and Communications

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  • Cite this

    Bagheri, S., & Scaglione, A. (2010). Opportunistic interference alignment effects in cooperative broadcast of multiple-source. In Conference Record of the 44th Asilomar Conference on Signals, Systems and Computers, Asilomar 2010 (pp. 1607-1611). [5757809] (Conference Record - Asilomar Conference on Signals, Systems and Computers). https://doi.org/10.1109/ACSSC.2010.5757809