A Service-centric Networking Scheme for Wireless Sensor Networks  

作　　者：LUO Hong LIN Jieqiong SUN Yan 

机构地区：[1]Beijing Key Laboratory of Intelligent Telecommunication, Software and Multimedia, Beijing University of Posts and Telecommunications, Beijing 100876, China

出　　处：《Chinese Journal of Electronics》2012年第3期528-534,共7页电子学报（英文版）

基　　金：Manuscript Received July 2011; Accepted Jan. 2011. This work is supported by the National Basic Research Program of China （973 Program） （No.2011CB302701）; the National Natural Science Foundation of China （No.61070205, No.60833009）; the Research Fund for the Doctoral Program of Higher Education （No.20110005110007）; the Cosponsored Project of Beijing Committee of Education; and IBM Shared University Research Project.

摘　　要：Many networking schemes in Wireless sen- sor networks （WSNs） directly dependent on physical net- work topology and hence result in hot-spot and service flexibility problems. In this paper, we propose a novel service-centric networking scheme. With a number of brokers placed in the sensing domain, we first establish an energy-efficient and service-centric network structure through a networking algorithm based on routing distance, and then maintain it via events management approaches. This service network consists of multi-level recursive sub- nets, and it is distributed and self-organized. Rather than normal clustering network, in this network, service is re- garded as the unit of node data and is forwarded within the service network level by level through the extended publish/subscribe communication model. Further more, through the use of high-performance brokers, we have en- hanced the in-network processing ability to reduce redun- dant data. Simulation results show that the scheme can efficiently locally process the services, balance energy con- sumption and thus extend the lifetime of network and ex- pand the applicability of system.

关 键 词：Wireless sensor network In-network ser-vice processing BROKER Publish/subscribe. 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TP393.1[自动化与计算机技术—控制科学与工程]