A study on channel allocation for data dissemination in mobile computing environments

  • Authors:
  • Wang-Chien Lee;Qinglong Hu;Dik Lun Lee

  • Affiliations:
  • GTE Labs, Waltham, MA;Univ. of Science and Technology, Clear Water Bay, Hong Kong;Univ. of Science and Technology, Clear Water Bay, Hong Kong

  • Venue:
  • Mobile Networks and Applications - Special issue: resource management in mobile wireless communication networks
  • Year:
  • 1999

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Abstract

This paper studies channel allocation methods for data dissemination through broadcast and on-demand channels. Analytical models and cost formulae for exclusive broadcast channels and exclusive on-demand channels are provided. Based on the models, we further derive cost models for dynamic channel allocation methods and propose a channel adaptation algorithm for optimizing system performance. The channel adaptation algorithm can be executed in O(n) time, where n is the number of data items in the database. Performance evaluation shows that the channel allocation algorithm produces optimal channel allocation which significantly improves the system performance under various parameter settings.