Journal of Information Processing Systems

Korea Information Processing Society (한국정보처리학회)
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Utility-based Rate Allocation Scheme for Mobile Video Streaming over Femtocell Networks

  • Quan, Shan Guo (Dept. of Electrical and Electronics Engineering, Yonsei University) ;
  • Xu, Jian (MC Lab., LG Electronics) ;
  • Kim, Young-Yong (Dept. of Electrical and Electronics Engineering, Yonsei University)
  • Published : 2009.09.30
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Abstract

This paper proposes a utility-based data rate allocation algorithm to provide high-quality mobile video streaming over femtocell networks. We first derive a utility function to calculate the optimal data rates for maximizing the aggregate utilities of all mobile users in the femtocell. The total sum of optimal data rates is limited by the link capacity of the backhaul connections. Furthermore, electromagnetic cross-talk poses a serious problem for the backhaul connections, and its influence passes on to mobile users, as well as causing data rate degradation in the femtocell networks. We also have studied a fixed margin iterative water-filling algorithm to achieve the target data rate of each backhaul connection as a counter-measure to the cross-talk problem. The results of our simulation show that the algorithm is capable of minimizing the transmission power of backhaul connections while guaranteeing a high overall quality of service for all users of the same binder. In particular, it can provide the target data rate required to maximize user satisfaction with the mobile video streaming service over the femtocell networks.

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