An outer bound for a multiuser two-way channel

Debashis Dash, Ashutosh Sabharwal

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

5 Scopus citations

Abstract

Most networks are two-way in nature, i.e., senders are also receivers. However, little is known about two-way networks except for the simplest two-way channel between two nodes, first proposed and studied by Shannon in 1961. In this paper, we continue our study of a three-node multiuser two-way channel first proposed by the authors in [1]. Our main result is an outer bound on the capacity region of the three-node network where each node operates in half-duplex mode. The key challenge in deriving the outer bound stems from the infinite Markov chain structure induced by the implicit feedback in encoding at each node. We show that the outer bound reduces to well-known results in multiple access and broadcast channels in several special cases.

Original languageEnglish (US)
Title of host publication44th Annual Allerton Conference on Communication, Control, and Computing 2006
PublisherUniversity of Illinois at Urbana-Champaign, Coordinated Science Laboratory and Department of Computer and Electrical Engineering
Pages1125-1128
Number of pages4
ISBN (Electronic)9781604237924
StatePublished - 2006
Event44th Annual Allerton Conference on Communication, Control, and Computing 2006 - Monticello, United States
Duration: Sep 27 2006Sep 29 2006

Publication series

Name44th Annual Allerton Conference on Communication, Control, and Computing 2006
Volume3

Other

Other44th Annual Allerton Conference on Communication, Control, and Computing 2006
Country/TerritoryUnited States
CityMonticello
Period9/27/069/29/06

ASJC Scopus subject areas

  • Computer Science Applications
  • Computer Networks and Communications

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