摘要
拥塞控制问题是影响无线传感器网络性能的一个重要因素。针对无线传感器网络中的拥塞控制问题,提出了一种基于RED的拥塞避免策略。RED算法目前比较常用于路由器队列管理中,以实现对缓存空间队列长度的管理。将其引入到无线传感器网络中,采用拥塞度门限值作为拥塞调节的依据,以matlab软件作为仿真工具,通过建立简单网络拓扑结构进行模拟实验,综合比对各个实验参数下的不同实验结果,从而得到适当参数值下,较好的无线传感器网络传输性能。
Congestion control problem is an important factor which impacts the wireless sensor network performance.Aiming at the congestion control problem in wireless sensor network,this paper put forward a congestion avoidance strategy based on RED algorithm.The RED algorithm now is usually used in routers to realize the management of the cache queue.This paper introduced it into the wireless sensor network,and adjusted the congestion on the basis of congestion degree threshold.Then the simulated experiments were carried out through establishing simple simulated network topology structure with Matlab.Different results in different experimental parameters were comprehensively compared and good transmission performance can be obtained in the proper parameter values,under the simple wireless sensor network.
出处
《计算机仿真》
CSCD
北大核心
2012年第3期13-16,80,共5页
Computer Simulation
基金
国家自然科学基金资助项目(60875039)
关键词
无线传感器网络
随机早期检测算法
拥塞控制
拥塞度
网络拓扑
Wireless sensor network（WSN）
RED algorithm
Congestion control
Congestion degree
Network topology
