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[Keyword] mobile QoS(2hit)

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  • Measurement-Based Predictive Admission Control for Mobile QoS in DiffServ Networks

    Jung-Mo MOON  Mi-Young YUN  Sang-Ha KIM  

     
    PAPER-Network

      Vol:
    E89-B No:7
      Page(s):
    2023-2032

    The crucial issue for mobile Internet services is to provide the guaranteed mobile QoS for multicalls. In mobile networks, we should not only guarantee handoff dropping probability but also maximize resource utilization. In this paper, we propose a QoS admission control mechanism for macro Mobile QoS based on a dynamic resource reservation. We introduce the requirements for macro Mobile QoS as mobility features and predict required resources in each routing paths thorough the combined analysis of average movement pattern and pre-defined handoff dropping probability. Our simulation results show that the proposed scheme can guarantee the pre-defined handoff dropping probability and maintain lower call blocking probability and higher resource utilization than other schemes. The propose scheme gives a practical solution for mobile networks providing mobile Internet services.

  • A Home-Proxy Based Wireless Internet Framework in Supporting Mobility and Roaming of Real-Time Services

    Jonathan CHAN  Bjorn LANDFELDT  Ren LIU  Aruna SENEVIRATNE  

     
    PAPER

      Vol:
    E84-B No:4
      Page(s):
    873-884

    Due to the lack of support in mobility and quality of service, today's IP-based networks have some inherent limitations for delivering multimedia services in a mobile environment. In the past few years, these issues have been addressed in the research community and the resulting techniques are being standardised. However, these developments have been done in isolation and become incompatible with each other. In addition to these technical issues, the future infrastructure for charging and accounting mobile multimedia services is expected to be increasingly complicated. In this paper we present a home-proxy based framework which can facilitate the integration of mobility support and QoS management. Furthermore, it enables centralised accounting, which simplifies the cost recovery processes of roaming services. To prove the viability of our design, we have built and tested this framework on a DiffServ wide-area backbone using an MP3 streaming application.