Flexible backhaul design with cooperative transmission in cellular interference networks

Meghana Bande, Aly El Gamal, Venugopal Varadachari Veeravalli

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

Abstract

We propose a novel interference management framework for the cellular downlink through cooperative transmission. A sectored cellular network is studied where the interference is only due to sectors in neighboring cells and intra cell interference is ignored. We first explore the potential degrees of freedom (DoF) gain in a scenario where mobile receivers can be associated to any neighboring cell but no cooperative transmission is allowed. We show that the maximum achievable per user DoF for orthogonal schemes is between 1/3 and 3/7. On the other hand, if cooperative transmission is combined with flexible message assignment to the transmitters, we show that it is possible to achieve a per user DoF of 7/15. In addition, the proposed cooperative transmission scheme does not require extra backhaul capacity, as it uses a smart assignment of messages to transmitters to meet an average backhaul load constraint of one message per transmitter.

Original languageEnglish (US)
Title of host publicationProceedings - 2015 IEEE International Symposium on Information Theory, ISIT 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2431-2435
Number of pages5
ISBN (Electronic)9781467377041
DOIs
StatePublished - Sep 28 2015
EventIEEE International Symposium on Information Theory, ISIT 2015 - Hong Kong, Hong Kong
Duration: Jun 14 2015Jun 19 2015

Publication series

NameIEEE International Symposium on Information Theory - Proceedings
Volume2015-June
ISSN (Print)2157-8095

Other

OtherIEEE International Symposium on Information Theory, ISIT 2015
CountryHong Kong
CityHong Kong
Period6/14/156/19/15

Keywords

  • interference alignment
  • interference management transmit cooperation
  • wireless networks

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Information Systems
  • Modeling and Simulation
  • Applied Mathematics

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  • Cite this

    Bande, M., El Gamal, A., & Veeravalli, V. V. (2015). Flexible backhaul design with cooperative transmission in cellular interference networks. In Proceedings - 2015 IEEE International Symposium on Information Theory, ISIT 2015 (pp. 2431-2435). [7282892] (IEEE International Symposium on Information Theory - Proceedings; Vol. 2015-June). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISIT.2015.7282892