DAST: a QoS-aware Routing Protocol for Wireless Sensor Networks

被引：9
作者：
Ji, Peng [1 ]
Wu, Chengdong [1 ]
Zhang, Yunzhou [1 ]
Jia, Zixi [1 ]
机构：
[1] Northeastern Univ, Inst Artificial Intelligence & Robot, Shenyang, Liaoning, Peoples R China
来源：
2008 INTERNATIONAL CONFERENCE ON EMBEDDED SOFTWARE AND SYSTEMS SYMPOSIA, PROCEEDINGS | 2008年
关键词：
D O I：
10.1109/ICESS.Symposia.2008.77
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In Wireless Sensor Networks (WSNs), a challenging problem is how to advance network QoS. Energy-efficiency network communication traffic and failure-tolerance, these important factors of QoS are closely related with the applied performance of WSNs. Hence a QoS-aware routing protocol called Directed Alternative Spanning Tree (DAST) is proposed to balance the above three factors of QoS. A directed tree-based model is constructed to bring data transmission more motivated and efficient. Based on Markov, a communication state predicted mechanism is proposed to choose reasonable parent, and packet transmission to double-parent is submitted with alternative algorithm. For enhancing network failure-tolerance, routing reconstruction is studied on. With the simulations, the proposed protocol is, evaluated in comparison with the existing protocols from energy efficiency to the failure-tolerance. The Performance of DAST is verified to be efficient and available, and it is competent for satisfying QoS of WSNs.
引用
收藏
页码：259 / 264
页数：6
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