WU Da-peng, WU Mu-qing, ZHEN Yan. Effective frame transmitting mechanism for improving the network throughput[J]. 2010, 31(2): 10-16.DOI：
有效提高WLAN吞吐量的数据帧发送策略
摘要
设计合理的数据帧发送策略能够提高无线资源利用率。分析了退避机制对系统归一化吞吐量的影响情况
提出一种简单、有效的数据帧发送策略
其中主要包括主动的动态数据帧发送时间调整机制和被动的自适应竞争窗口调整方法
前者能够主动地调节单位时间内注入队列的数据帧数量
后者以被动的方式根据网络当前数据帧碰撞程度快速调整竞争窗口。仿真结果表明
提出的调整机制能够根据网络状态快速地、自适应地优化节点数据分组传输过程中的相关参数
使得网络吞吐量提高接近30%
有效地改善了无线资源使用率。
Abstract
The limited radio resource can be used reasonably by the frame transmitting mechanism well designed.Based on the analysis on the normalize throughput of IEEE 802.11 wireless LAN
combining adaptive contention window and random varying timing method
a simple and effect frame transmitting mechanism was proposed.Actively
the dynamical varying timing method adjusts the number of packets sending to queue;moreover
the adaptive contention window scheme determines the size of contention window based on the collision status rapidly.The simulations show that the mechanism is able to optimize the parameters of packets sending out
and network throughput can be improved 30 per-cent
京公网安备11010802024621