Self-organizing dynamic fractional frequency reuse in OFDMA systems

Aleksandr Stolyar, Harish Viswanathan

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

Abstract

We describe an algorithm for sub-carrier and power allocation that achieves out-of-cell interference avoidance through dynamic fractional frequency reuse (FFR) in downlink of cellular systems based on orthogonal frequency division multiple access (OFDMA). The focus in on the constant-bit-rate (CBR) traffic type flows (e.g., VoIP). Our approach is based on the continuous "selfish" optimization of resource allocation by each sector. No a priori frequency planning and/or inter-cell coordination is required. We show, both analytically (on a simple illustrative example) and by simulations (of a more realistic system), that the algorithm leads the system to "self-organize" into efficient frequency reuse patterns.

Original languageEnglish (US)
Title of host publicationINFOCOM 2008
Subtitle of host publication27th IEEE Communications Society Conference on Computer Communications
Pages1364-1372
Number of pages9
DOIs
StatePublished - Sep 15 2008
Externally publishedYes
EventINFOCOM 2008: 27th IEEE Communications Society Conference on Computer Communications - Phoenix, AZ, United States
Duration: Apr 13 2008Apr 18 2008

Publication series

NameProceedings - IEEE INFOCOM
ISSN (Print)0743-166X

Other

OtherINFOCOM 2008: 27th IEEE Communications Society Conference on Computer Communications
CountryUnited States
CityPhoenix, AZ
Period4/13/084/18/08

ASJC Scopus subject areas

  • Computer Science(all)
  • Electrical and Electronic Engineering

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  • Cite this

    Stolyar, A., & Viswanathan, H. (2008). Self-organizing dynamic fractional frequency reuse in OFDMA systems. In INFOCOM 2008: 27th IEEE Communications Society Conference on Computer Communications (pp. 1364-1372). [4509714] (Proceedings - IEEE INFOCOM). https://doi.org/10.1109/INFOCOM.2007.119