Campus Units

Electrical and Computer Engineering

Document Type

Conference Proceeding

Conference

2011 IEEE International Symposium on Information Theory (ISIT)

Publication Version

Submitted Manuscript

Link to Published Version

https://doi.org/10.1109/TIT.2012.2189197

Publication Date

2011

Journal or Book Title

2011 IEEE International Symposium on Information Theory Proceedings (ISIT)

DOI

10.1109/TIT.2012.2189197

Conference Title

IEEE International Symposium on Information Theory (ISIT)

Conference Date

July 31-August 5, 2011

City

St. Petersburg, Russia

Abstract

We consider a single hop interference network with K transmitters, each with an independent message and J receivers, all having the same number (M) of antennas. Each receiver requests an arbitrary subset of the messages. This generalizes the well-known K user M antenna interference channel, where each message is requested by a unique receiver. For this setup, we derive the exact degrees of freedom (DoF) region. Our achievability scheme generalizes the interference alignment scheme proposed by Cadambe and Jafar '08. In particular, we achieve general points in the DoF region by using multiple base vectors and aligning the interference at each receiver to its largest (in the DoF sense) interferer. As a byproduct of our analysis, we recover the DoF region for the original interference channel.

Comments

This is a manuscript of a proceeding from the IEEE International Symposium on Information Theory (2011): 36, doi:10.1109/TIT.2012.2189197. Posted with permission.

Rights

Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

Copyright Owner

IEEE

Language

en

File Format

application/pdf

Published Version

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Article Location

 
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