Research Article
A Pro-active Mobility Extension for Pub/Sub Systems
@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
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