Distributed power and scheduling management for mobile ad hoc networks with delay constraints

  • Authors:

  • Qi Qu;Laurence B. Milstein;Dhadesugoor R. Vaman

  • Affiliations:

  • Electrical and Computer Engineering Department, University of California San Diego, La Jolla, CA;Electrical and Computer Engineering Department, University of California San Diego, La Jolla, CA;Electrical Engineering Department, Prairie View A&M University, Prairie View, TX

  • Venue:
  • MILCOM'06 Proceedings of the 2006 IEEE conference on Military communications
  • Year:
  • 2006

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Abstract

In this paper, we propose a cross-layer distributed power control and scheduling protocol for delay-constrained applications over mobile CDMA-based ad hoc wireless networks. Herein, we propose a novel scheme where power control is employed to combat delay occurring on multi-hop wireless ad hoc networks via cross-layer information exchange. Based on that, a distributed power control and scheduling protocol is proposed to control the incurred delay, as well as the multiple access interference (MAI). Unlike many previous works on power control and scheduling, we also investigate the impacts of Doppler spread and noisy channel estimates upon the system performance, and provide a robust system which employs a combination of power control and coding/interleaving to combat the effects of Doppler spread by exploiting the time diversity when the Doppler spread gets large. Hence, our proposed approach can function appropriately over a wide range of channel conditions.