ChinaCom2008-Frontiers on Communications and Networking Symposium

Research Article

Consistency and Update in Mobile Overlay Networks

  • @INPROCEEDINGS{10.1109/CHINACOM.2008.4685200,
        author={Zhou SU and Jiro KATTO and Yasuhiko YASUDA and Yu CHEN},
        title={Consistency and Update in Mobile Overlay Networks},
        proceedings={ChinaCom2008-Frontiers on Communications and Networking Symposium},
        keywords={Mobile contents delivery Consistency Algorithm Web Performance Network Traffic},
  • Zhou SU
    Jiro KATTO
    Yasuhiko YASUDA
    Yu CHEN
    Year: 2008
    Consistency and Update in Mobile Overlay Networks
    DOI: 10.1109/CHINACOM.2008.4685200
Zhou SU1,*, Jiro KATTO1, Yasuhiko YASUDA1, Yu CHEN1
  • 1: Members, IEEE
*Contact email:


With the development whereby mobile content distribution systems can manage dynamically changing files, an important issue to be resolved is consistency management, which means the cached replicas on different mobile sites must be updated if the originals change. This paper is to design an integrated consistency-control algorithm for mobile contents delivery network (M-CDN) to enhance the efficient utilization of network resource and support the client mobility. Firstly, by carrying out an analysis of mobile surrogates’ characteristics, for a given content which has been changed on its original node, only a limited number of its replicas instead of all replicas are updated. Secondly, if a replica has been selected for update, the latest version will be sent from an algorithm-decided site instead of from its original server. Simulation results show that the proposal outperforms other conventional methods.