4 Localization of a Wireless Sensor Network for Environment Monitoring Using Maximum Likelihood Estimation with Negative Constraints
Kay-Soon Low and Hao Guo
In many environmental monitoring applications, the location of the sensor node is important information. Due to the large number of sensor nodes to be deployed, it is not practical to equip them with global positioning system (GPS) or manually determine their locations. In this chapter, a smart localization algorithm using maximum likelihood estimation (MLE) with negative constraints (NCs) is proposed. Unlike most of the existing methods that only utilize positive constraint information such as internode distances or connectivity, the proposed algorithm also utilizes NC information to achieve ...
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