Modeling the Distributed Coordination Function of the IEEE 802.11

CHEN Hong-yuan; LI Yan-da

您当前的位置：

首页 >

文章列表页 >

Modeling the Distributed Coordination Function of the IEEE 802.11

更新时间：2025-07-16

- Modeling the Distributed Coordination Function of the IEEE 802.11
- Acta Electronica Sinica Vol. 33, Issue 1, Pages: 138-141(2005)
- 作者机构：
  
  清华大学自动化系,北京,100084
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN919.21
- Published：2005
- 稿件说明：
移动端阅览
CHEN Hong-yuan, LI Yan-da. Modeling the Distributed Coordination Function of the IEEE 802.11[J]. Acta Electronica Sinica, 2005, 33(1): 138-141.
DOI：

CHEN Hong-yuan, LI Yan-da. Modeling the Distributed Coordination Function of the IEEE 802.11[J]. Acta Electronica Sinica, 2005, 33(1): 138-141. DOI：

摘要

IEEE 802.11采用异步传输方式作为媒体层的主要技术

而基于载波检测碰撞避免的分布式接入机制则是其最大的特点.关于分布式接入机制的研究

目前已经有了许多的模型

但是

大部分的模型都是研究终端所产生的数据包是固定长度

很少有模型来研究终端数据包是可变长度的情况.这种情况下的难点就是不易求得碰撞发生时信道所消耗的时间长度.本文则研究在终端数据包长度的分布函数为

f(x)

下协议的吞吐量和延迟性能模型.首先本文将原标准协议的退避算法看成是有固定大小的竞争窗口

用以求得站点的发送概率;然后

分析信道的工作状态

给出了性能模型

重点在求解碰撞消耗的信道时间

在文章的最后

我们通过仿真试验来验证了模型的正确性.

Abstract

The IEEE 802.11 is used to support asynchronous and time bounded delivery of radio data packets.The primary MAC technique of 802.11 is called distributed coordination Function(DCF)

which is based on Carrier Sense Multiple Access with Collision Avoidance(CSMA/CA) mechanism with binary slotted exponential backoff.The basic access and the RTS/CTS access mechanisms are the packet transmission schemes employed by DCF.There have been few models to analysis the combination of the basic and RTS/CTS scheme until now.In this paper

we propose an analytical model to evaluate the throughput and delay performance of a combination mechanism

in the assumption that the distribution function of the packet length is a general function

f(x)

.The accuracy of our model is validated by elaborate

simulations.

关键词

Keywords

references

Views

1135

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Noise Filtering and Feature Enhancement Based Graph Neural Network Method for Fraud Detection

An Efficient Algorithm of Information Recommendation Between Groups in Social Networks

Cross-Layer Resource Allocation Scheme for WLAN Based on Multi-Packet Reception

PKUsim-86:A Cycle Level Full System Simulator for x86 Processor and AMBA-Based SoC

Bias-Free LMS Time Delay Estimation at Low Signal-to-Noise Ratio Levels

Related Author

HUANG Zhen-hua

LI Kang-he

XIANG Yang

FANG Qiang

ZHANG Bo

HUANG Zhen-hua

XU Shu-fang

WANG Jun-bo

Related Institution

School of Computer Science， South China Normal University

School of Artificial Intelligence， South China Normal University

College of Information Mechanical and Electrical Engineering Shanghai Normal University Shanghai China

The Key Laboratory of Embedded System and Service Computing Ministry of Education Tongji University Shanghai China

Department of Computer and Technology Tongji University Shanghai China

⁰