1st International ICST Conference on Mobile Wireless Middleware, Operating Systems and Applications

Research Article

A Pro-active Mobility Extension for Pub/Sub Systems

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  • @INPROCEEDINGS{10.4108/ICST.MOBILWARE2008.2762,
        author={Abdulbaset Gaddah and Thomas Kunz},
        title={A Pro-active Mobility Extension for Pub/Sub Systems},
        proceedings={1st International ICST Conference on Mobile Wireless Middleware, Operating Systems and Applications},
        publisher={ICST},
        proceedings_a={MOBILWARE},
        year={2010},
        month={5},
        keywords={Pub/Sub systems mobility JMS Wireless network middleware},
        doi={10.4108/ICST.MOBILWARE2008.2762}
    }
    
  • Abdulbaset Gaddah
    Thomas Kunz
    Year: 2010
    A Pro-active Mobility Extension for Pub/Sub Systems
    MOBILWARE
    ICST
    DOI: 10.4108/ICST.MOBILWARE2008.2762
Abdulbaset Gaddah1,*, Thomas Kunz1,*
  • 1: Carleton University, 1125 Colonel By Drive, Ottawa, Ont., Canada K1S 5B6
*Contact email: agaddah@sce.carleton.ca, tkunz@sce.carleton.ca

Abstract

In this paper, we propose a novel and efficient mobility extension based on a pro-active approach (i.e., the context transfer/caching occurs prior to the subscriber movement) with the objective to extend existing pub/sub systems to the mobile environments. We also describe the notion of neighbor graph, which forms the basis for pre-loading the subscriber context one hop ahead of its current location. We have investigated the adequacy of our proposed pro-active approach in supporting mobile subscribers and compared its behavior with a durable subscription-based approach adapted by JMS-based pub/sub systems. The experimental results show that our pro-active approach reduces the message loss by more than 50% and the message duplication to zero compared to the durable subscription-based approach. It also achieves better throughput results with low cost in terms of mobility extension overhead