Exploiting mobility diversity in rate adaptive CDMA networks

  • Authors:
  • Katerina Papadaki;Vasilis Friderikos;Hamid Aghvami

  • Affiliations:
  • Operational Research Department at London School of Economics (LSE), Houghton Street, London WC2A 2AE, United Kingdom;Centre for Telecommunications Research at King's College London (KCL), United Kingdom;Centre for Telecommunications Research at King's College London (KCL), United Kingdom

  • Venue:
  • Computers and Electrical Engineering
  • Year:
  • 2006

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Abstract

An augmented model to greedy multi-rate power control schemes is proposed that integrates mobility information to increase the optimization margins of power efficient packet transmission. The proposed model can be considered as a hierarchical multi-rate power control scheme, where current rate allocation decisions are influenced by a larger time horizon that contains information about directionality and velocity of vehicular mobile users. In this paper we integrate the mobility aware algorithm with a greedy channel rate allocation scheme to illustrate its effectiveness. Numerical investigations show that required power per transmitted packet can be reduced on average by 40% without penalizing throughput.