Authors: Jian Zhu Jun Liu Zhao Hai Bi YuanGuo
Publish Date: 2015/09/11
Volume: 22, Issue: 5, Pages: 1739-1750
Abstract
Wireless sensor networks WSN as a new type of environment monitoring system has became a hot research topic in recent years This paper mainly focuses on the problem of signal conflicting in WSN The link quality quality between two neighboring nodes can be guaranteed by the layout of network but the endtoend routing quality can not be guaranteed in the same way because of random signal conflicting even if CSMA/CA is used in WSN The endtoend routing will have higher performance if the routing has lower signal conflicting probability So the main work of this paper is designing a routing protocol to find out the routing with the lowest signal conflicting probability This paper proposed a Minimum conflicting probability routing protocol MCR in link quality guaranteed WSN Firstly MCR combines the degree value with workload of nodes forming a new degree and cache based routing metric DBM Secondly MCR finds out the best routing by the Random Walk theory on basis of DBM The simulation results show that MCR protocol is more effective to avoid the signal conflicting it has a higher endtoend reliability and a more stable network throughput than other routing protocols in the same link quality guaranteed WSN
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