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Abstract:
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In addition to sensing the environment, the Wireless Sensor Network application of localization has become an important research subject and has been widely discussed. Unlike the other range-free localization scheme?? lack of real time performance, our proposal is a highly effective real time range-free localization scheme. The sensors detect the signal of an object and he changing signal strength to determine the direction of the object relative to the sensor. Based on the speed of change relative to the time interval we can determine the value of the position change. Together with an initial reference point, we are able to create a highly effective and accurate real time localization scheme. Simulation results indicated that the proposed scheme is more effective and accurate than the other range-free localization schemes.
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