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Dynamic monitor based service recovery for composite service in MANETs

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4 Author(s)
Weiyu Chen ; Sch. of Comput. Sci., Fudan Univ., Shanghai ; Yunxiao Xu ; Bo Peng ; Weiwei Sun

Service composition has been introduced in MANETs to utilize the copious distributed resource. Composite service execution is crucial in service composition. Due to the mobility of nodes, service execution failure happens frequently and thus, service recovery is important for composite service execution. Moreover, caused by the decentralized network characters, the decentralized execution model is suitable for mobile ad hoc network. However, the decentralized execution model exerts more difficulties on service recovery. In this paper, we propose a dynamic monitor based service recovery strategy for a decentralized execution architecture with which no centre node exists during the execution process. With this strategy, each service provider plays the role as the monitor for the next servicepsilas execution. After accomplishing an atomic service, corresponding provider sends an ACK back to this servicepsilas monitor. As shown in the simulation, Our recovery strategy can be aware of the service failure early and can restart service just from the point of that failed atomic service thus greatly reduces the failure rate and the response time.

Published in:

Communication Technology, 2008. ICCT 2008. 11th IEEE International Conference on

Date of Conference:

10-12 Nov. 2008