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Cross-Layer Optimized Congestion, Contention and Power Control in Wireless Ad Hoc Networks

  • Eren Gürses
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4982)

Abstract

Despite some scepticism, cross-layer optimization has largely been accepted as an indispensable part of protocol design for wireless networks. In this respect, generalized network utility maximization (GNUM) has become a widely employed systematic approach for understanding the interconnections between layers and designing efficient cross-layer protocols. In this paper we adopt the GNUM approach and propose a cross-layer optimized congestion, contention and power control algorithm for transport, MAC (medium access control) and physical layers respectively. First we develop an abstract MAC layer model to capture the effects of multiple access in a wireless medium, then express the effective link capacities by relating physical layer capacities to the MAC layer model through average interference. Secondly we construct the GNUM based congestion, contention and power control problem, and devise a primal-based distributed algorithm to solve it. Results show that distributed algorithm obtains very similar results with the centralized one.

Keywords

Medium Access Control Power Control Congestion Control Maximal Clique Distribute Coordination Function 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© IFIP International Federation for Information Processing 2008

Authors and Affiliations

  • Eren Gürses
    • 1
  1. 1.Centre for Quantifiable QoS in Communication SystemsNorwegian University of Science and TechnologyTrondheimNorway

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