Simulation of Wireless Communication Path Selection Based on Channel Bandwidth Self Adjustment
Wireless communication has a wide coverage range,fast operation speed,and wide applicability.How-ever,due to the time-varying characteristics of the communication transmission channel,it is susceptible to various in-terferences,leading to signal attenustion problems.In order to enhance communication stability and allocate channel resource reasonably,this article put forward a method of selecting wireless communication path based on channel bandwidth self-adjustment.At first,the wireless communication channel was regarded as a nonlinear multivariable system,and then the correlation between the input and output responses of channel was calculated.Moreover,a model of wireless communication channel was built by using neural network.The network element was divided into three types:high burst,medium burst and low burst.According to the statistical principle,the bandwidth adjustment range was defined,so that the channel bandwidth be adjusted adaptively with the change of data transmission specifications.Furthermore,a communication cost function was created,and then the candidate node was established based on the set of neighbor nodes.Finally,the path with the lowest communication cost was selected as the optimal data transmission path with considering the residual energy of node and the forwarding energy loss.The experimental results prove that the proposed method can effectively improve network throughput,and the communication delay is less than 0.2ms.Therefore,its reliability is higher.
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