The JEDI Event-Based Infrastructure and Its Application to the Development of the OPSS WFMS
IEEE Transactions on Software Engineering
Using publish/subscribe middleware for mobile systems
ACM SIGMOBILE Mobile Computing and Communications Review
Supporting Disconnectedness-Transparent Information Delivery for Mobile and Invisible Computing
CCGRID '01 Proceedings of the 1st International Symposium on Cluster Computing and the Grid
Performance of publish/subscribe middleware in mobile wireless networks
WOSP '04 Proceedings of the 4th international workshop on Software and performance
Disseminating Information to Mobile Clients Using Publish-Subscribe
IEEE Internet Computing
On Quality-of-Service and Publish-Subscribe
ICDCSW '06 Proceedings of the 26th IEEE International ConferenceWorkshops on Distributed Computing Systems
A pro-active mobility extension for pub/sub systems
Proceedings of the 1st international conference on MOBILe Wireless MiddleWARE, Operating Systems, and Applications
Design and Evaluation of a Support Service for Mobile, Wireless Publish/Subscribe Applications
IEEE Transactions on Software Engineering
Modeling and optimization of wireless local area network
Computer Communications
Accurate prediction of mobility into publish/subscribe
Proceedings of the 11th ACM international symposium on Mobility management and wireless access
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This paper presents a novel and efficient mobility management scheme based on a pro-active caching approach (i.e., state transfer/caching occurs prior to the subscriber's movement) to extend existing pub/sub systems to the mobile, wireless domain. This approach depends largely on a mechanism that intelligently pre-loads subscriber contexts one hop ahead of its current broker. To achieve this in an automated fashion, we introduce the notion of a neighbor graph, which is built automatically, to capture user mobility patterns. We have investigated the effectiveness of our proposed approach through testbed experiments, comparing it to the current state-of-the-art solutions, durable subscription-based and reactive, proposed in the literature. The experimental results across a broad-range of workload parameters show that our proactive approach outperforms earlier approaches by wide margins. Our approach supports fast handoff with low cost in terms of state transfer overhead. It also prevents message duplication and considerably reduces message loss.