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Recently Wireless Sensor Networks (WSNs) are a very promising research field since they find application in many different areas. In applications involving networks of sensor equipped autonomous vehicles, it is crucial to have an energy efficient communication protocol due to the limited on-board batteries. Unlike traditional sensor networks, vehicle sensor networks typically consist of only a small number of nodes. The authors exploit this fact in their protocol design by optimizing specifically for these mobile small scale networks. Their proposed solution, ConverSS, is a hybrid MAC/routing protocol that is energy-efficient for vehicle sensor networks. The results show that their schemes effectively support increased sleeping interval with low energy consumption.
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