The Power of Consensus: Optimal Distributed Multichannel Wireless Transmitter Power Control

Ilai Bistritz, Nicholas Bambos

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Consider a distributed network with N devices and K channels. Each device chooses a single channel and controls its transmission power on that channel. Our goal is to minimize the total transmission power while maintaining reliable communication between devices. Minimizing the total power consumption involves both the combinatorial optimization aspect of assigning channels to devices and the continuous optimization aspect of finding the optimal transmission powers. We present a distributed algorithm that solves the multichannel power control problem, and prove that it converges to the optimal solution. The algorithm is based on exploring new channel allocations by trial and error and running the best-response power control algorithm on the explored channel allocation. Using a novel wireless consensus phase, where devices use their transmission power as a consensus variable, all devices learn if the explored allocation is better than the current one. If the new allocation is better, all devices start using this allocation until the next trial and error. Finally, we provide simulations that support our analytical findings.

Original languageEnglish
Title of host publication2019 IEEE International Conference on Communications, ICC 2019 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538680889
DOIs
StatePublished - May 2019
Externally publishedYes
Event2019 IEEE International Conference on Communications, ICC 2019 - Shanghai, China
Duration: 20 May 201924 May 2019

Publication series

NameIEEE International Conference on Communications
Volume2019-May

Conference

Conference2019 IEEE International Conference on Communications, ICC 2019
Country/TerritoryChina
CityShanghai
Period20/05/1924/05/19

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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