Abstract
Environmental Monitoring system has become more and more critical for biological protection recently. To get timely information from monitored environment, a timely wireless senor network routing scheme (TNRS) is proposed, which is made up of three phrases: initial setup, route discovery and establishment, data communication and route maintenance. In the first phrase, every sensor node will get the initial route table. In the second phrase, source node will find its own path with high fitness value. In the third phrase, data transmission and route maintenance are done under ACK confirmation mechanism. Simulation shows that TNRS routing scheme can decrease data miss ratio by 24.88%, and reduce average data latency by 14.85%, compared to SPEED routing scheme. So TNRS scheme can provide better real time service for environmental monitoring system.
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