无线传感器网络公平性算法的分析

为了保证无线传感器网络具有较好的公平性,同时拥有较高的吞吐量,提出了一种基于公平性的多数据包发送调度算法.在该算法中,数据包是按照信源识别的方式来存放的.距离网关一跳范围外的节点,采用改进的最大最小公平性调度算法;距离网关一跳范围以内的节点,每次成功竞争信道后,若节点内各个堆栈都有数据包,则节点一次发送多个数据包,每个堆栈都发送一个.否则,节点等待空闲一段时间.通过对比仿真实验,网络具有较好的公平性以及较高的吞吐量.

Analysis of fairness-based algorithm in wireless sensor networks

In order to guarantee good fairness and high throughput in wireless sensor networks,this research gives an analysis of the existing fairness scheduling algorithm and proposes a multiple packet-scheduling algorithm based on fairness. The node is within one hop to Gateway,after every successful getting the channel in the competition with other nodes,each stack in the node has a packet,and the node will send multiple packets. Otherwise,the node will be waiting for a period of time. Through a simulationexperiment,the network has good fairness and high throughput.