Optimizing adaptive modulation in wireless networks via multi-period network utility maximization

Daniel O'Neill, Ekine Akuiyibo, Stephen Boyd, Andrea J. Goldsmith

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

9 Scopus citations

Abstract

We present a crosslayer technique to find and characterize optimal control policies for wireless networks operating at different time scales at the upper layer and physical layer. The technique can also be directly applied to networks carrying traffic with different time dependencies such as data or video. Our approach combines network utility maximization and adaptive modulation over an infinite discrete time horizon using a class of performance measures we call time smoothed utility functions. We describe the properties of optimal physical layer power and link rate policies and characterize optimal upper layer policies, which determine when packets should be injected into the network. We also characterize the behavior of optimal policies as different system parameters are used.

Original languageEnglish (US)
Title of host publication2010 IEEE International Conference on Communications, ICC 2010
DOIs
StatePublished - 2010
Externally publishedYes
Event2010 IEEE International Conference on Communications, ICC 2010 - Cape Town, South Africa
Duration: May 23 2010May 27 2010

Publication series

NameIEEE International Conference on Communications
ISSN (Print)0536-1486

Other

Other2010 IEEE International Conference on Communications, ICC 2010
CountrySouth Africa
CityCape Town
Period5/23/105/27/10

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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