无线传感器网络接纳控制方法研究

The Study of Connection Admission Control Method in Wireless Sensor Network

为了解决无线传感器网络汇聚节点存在的溢出问题,提出了一种新的接纳控制方法(Connection Admission Control based on Wavelet Transform,CACWT).该方法首先结合小波变换降低业务流的突发特性,并且推导了有效带宽边界和溢出概率边界.同时,利用NS2进行仿真实验,深入分析了有效带宽、缓冲区、溢出概率以及链路容量之间的关系.与传统的其他方法相比较,CACWT具有较好的适应性.

In order to solve the overflow of aggregation node in wireless sensor network,a novel connection admission control method（Connection Admission Control based on Wavelet Transform,CACWT）is proposed.In this method,the burst characteristic is reduced by wavelet transform at first,and the border of effective bandwidth and overflow probability are derivation.Then,a simulation with NS2 was conducted to research on the relationship among effective bandwidth,buffer,overflow probability and link capacity.Compared to other tradition algorithms,the result shows CACWT has good suitability.