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A wireless sensor network WSN is a various networks consisting of a large number of tiny low-cost nodes and additional base stations. Each sensor node comprises sensing, processing, transmission, mobilize, position finding system and power units. Many applications in wireless sensor networks require communication performance that is both consistent and high quality. Unfortunately, performance of present network protocols can become important because of various interferences and environmental changes. present routing protocols estimates link quality based on the reception of control packets over a short time period. This method is neither efficient nor accurate enough to capture the dramatic variations of link quality. The purpose of the survey is to improve consistent network performance in wireless sensor networks such as more stable and the better transient performance. |
