Cooperative mobile-to-mobile file dissemination in cellular networks within a unified radio interface

  • Authors:
  • Larissa Popova;Thomas Herpel;Wolfgang Gerstacker;Wolfgang Koch

  • Affiliations:
  • Institute for Mobile Communications, University of Erlangen-Nuremberg, Cauerstr. 7, 91058 Erlangen, Germany;Institute for Mobile Communications, University of Erlangen-Nuremberg, Cauerstr. 7, 91058 Erlangen, Germany;Institute for Mobile Communications, University of Erlangen-Nuremberg, Cauerstr. 7, 91058 Erlangen, Germany;Institute for Mobile Communications, University of Erlangen-Nuremberg, Cauerstr. 7, 91058 Erlangen, Germany

  • Venue:
  • Computer Networks: The International Journal of Computer and Telecommunications Networking
  • Year:
  • 2008

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Abstract

In this paper, a data dissemination technique is introduced for cellular networks by embedding peer-to-peer data transfer into the hierarchical architecture of UMTS (Universal Mobile Telecommunication Systems) for cooperative sharing of data among mobile terminals. Our concept is based on the uplink/downlink traffic imbalance in 3G wireless networks and clearly confirms the social principle ''real egoistic behavior is to cooperate''. It boosts the spectral efficiency of UMTS by enabling direct mobile-to-mobile data transfer and by dynamically allocating users to temporarily unused uplink channels. The results indicate a substantial increase in service probability and overall system throughput, as well as a significant reduction of the expected file download time.