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A communication quality improved routing protocol for wireless sensor network

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4 Author(s)
Fei Chen ; Department of Information Science and Engineering Northeastern University Shenyang, Liaoning Province, China ; Chengdong Wu ; Peng Ji ; Yunzhou Zhang

The routing technology at the network layer is critical in the architecture of wireless sensor network. As an active branch of routing technology, the cluster based protocols excel on the aspects of network topology management, energy consumption, data aggression, etc. An energy effective routing protocol based on low-energy adaptive clustering hierarchy protocol, which is called CQIR, is proposed to meet the QoS requirement and minimize the energy consumption. Aiming at the defect in cluster head selecting mechanism in the traditional LEACH, the protocol improve the network performance by excluding the node with improper communication position to be selected as the cluster heads. The protocol employs probabilistic analyses to fix the optimum measuring range. The cluster heads are selected according to the node density threshold in the measuring area, which is confirmed by the node distribution situation and communication requirement. The two groups of simulation results show the protocol can not only reduces the energy consumption but also guarantees the communication quality especially in the uneven distribution situation.

Published in:

2009 IEEE International Conference on Automation and Logistics

Date of Conference:

5-7 Aug. 2009