Spectrum sharing with distributed interference compensation

Jianwei Huang*, Randall A. Berry, Michael L. Honig

*Corresponding author for this work

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

122 Scopus citations

Abstract

We consider a spectrum sharing problem in which each wireless transmitter can select a single channel from a set of available channels, along with the transmission power. An Asynchronous Distributed Pricing (ADP) scheme is proposed, in which users exchange "price" signals, that indicate the negative effect of interference at the receivers. Given this set of prices, each transmitter chooses a channel and power level to maximize its net benefit (utility minus cost). We show that a sequential version of this Single-Channel (SC)-ADP algorithm converges with two users and an arbitrary number of channels, and observe via simulation that it exhibits rapid convergence with more users in the network. The pricing algorithm always outperforms the heuristic algorithm in which each user picks the best channel without exchanging interference prices. In a dense network with heavy interference, the SC-ADP algorithm can also perform better than the iterative water-filling algorithm where each user transmits over multiple channels but the users do not exchange any information. The performance of the SC-ADP algorithm is also compared with a Multi-Channel (MC)-ADP algorithm in which users can transmit over multiple channels and exchange interference prices over each channel.

Original languageEnglish (US)
Title of host publication2005 1st IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks, DySPAN 2005
Pages88-93
Number of pages6
DOIs
StatePublished - 2005
Event2005 1st IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks, DySPAN 2005 - Baltimore, MD, United States
Duration: Nov 8 2005Nov 11 2005

Publication series

Name2005 1st IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks, DySPAN 2005

Other

Other2005 1st IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks, DySPAN 2005
Country/TerritoryUnited States
CityBaltimore, MD
Period11/8/0511/11/05

ASJC Scopus subject areas

  • Engineering(all)

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