A data filtration-aware MAC protocol for wireless sensor networks
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
La Nina: framework in self-adaptive publish/subscribe middleware for wireless sensor networks
International Journal of Autonomous and Adaptive Communications Systems
Computer Networks: The International Journal of Computer and Telecommunications Networking
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WSNs middle-ware is called software that is between applications and operating system in sensor node. Generally, to support good interaction functions between user's applications, this middleware should have a communication function between sensor nodes and have parts of balancing its resources between client and server's networks performance sides. For this reason, WSNs are composed by server-sides middleware and in-network middleware. The former, Server-side middleware is middleware to support application services efficiently in server system and the other, In-network middleware, located between sensor nodes, is in charge of managing inner sensing information. Therefore, we choose publish and subscribe network model, one of event-driven network methods, to support WSNs better than other ones. By using this model, sensor networks could reduce unnecessary energy cost and response to users' variety requests.