关键词: 传感网 节能 服务质量 调度

Abstract:

Energy saving is one of the critical issues for wireless sensor networks since most sensor nodes are equipped with nonrechargeable batteries that have  limited lifetime. To extend the lifetime of a sensor network, one common approach is to dynamically schedule nodes＇ duty cycles. In this paper, we abs
 stract the model of node scheduling, analyze the design space and design objects, and provide the classification of node scheduling schemes. As viewed f rom those aspects, the recent representative node scheduling schemes are presented, and their characteristics are compared. Finally, the future research issues in this area are given.

Key words: sensor network, energy saving;QoS;node scheduling