Degrees of freedom of two-hop wireless networks: "Everyone gets the entire cake"

Ilan Shomorony, A. Salman Avestimehr

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

Abstract

We show that fully connected two-hop wireless networks with K sources, K relays and K destinations have K degrees of freedom for almost all values of constant channel coefficients. Our main contribution is a new interference-alignment-based achievability scheme which we call aligned network diagonalization. This scheme allows the data streams transmitted by the sources to undergo a diagonal linear transformation from the sources to the destinations, thus being received free of interference by their intended destination.

Original languageEnglish (US)
Title of host publication2012 50th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2012
Pages1935-1942
Number of pages8
DOIs
StatePublished - Dec 1 2012
Externally publishedYes
Event2012 50th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2012 - Monticello, IL, United States
Duration: Oct 1 2012Oct 5 2012

Publication series

Name2012 50th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2012

Other

Other2012 50th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2012
CountryUnited States
CityMonticello, IL
Period10/1/1210/5/12

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Computer Science Applications

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  • Cite this

    Shomorony, I., & Avestimehr, A. S. (2012). Degrees of freedom of two-hop wireless networks: "Everyone gets the entire cake". In 2012 50th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2012 (pp. 1935-1942). [6483459] (2012 50th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2012). https://doi.org/10.1109/Allerton.2012.6483459