DAST: a QoS-aware Routing Protocol for Wireless Sensor Networks
In Wireless Sensor Networks (WSNs),a challenging problem is how to advance network QoS. Energy-efficiency,network communication traffic and failuretolerance,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 failuretolerance,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.
Peng Ji Chengdong Wu Yunzhou Zhang Zixi Jia
Institute of Artificial Intelligence and Robot,Northeastern University Shenyang,Liaoning,China
国际会议
成都
英文
259-264
2008-01-01（万方平台首次上网日期，不代表论文的发表时间）