Abstract
In response to the issue that GPS is unable to carry out Location-Based Service(LBS) in indoor environment,a LBS indoor channel allocation model,credibility evaluation and control method was presented in this paper,which integrated GPS,Wi-Fi,ZigBee and Bluetooth technologies.It solved the problem arising from combination channel allocation,including the evaluation of the traffic load,the available Radio Frequency(RF),and non-overlapping RF channels number of each node.Each Access Point(AP)'s signal strength built the prediction model with reference point.The optimization algorithm was designed to determine and select the credibility of combination channel based on the energy evaluation.It adaptively selected neighbors with highest comprehensive effects to participate in iterative optimization.The simulation result indicates this method can effectively inhibit the proliferation of communication interference error in the network,reduce the positioning complexity,and improve the positioning accuracy in addition to improving scalability and robustness of the entire network.
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