Throughput Modeling and Analysis of IEEE 802.11 DCF with Selfish Node

Chunfeng Liu, Y. Shu, Wucheng Yang, O. Yang
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引用次数: 13

Abstract

Research on the effect of selfish node in wireless ad hoc networks has received considerable attention recently. However, most work concentrates on simulation study, but lacks an analytical study to accurately predict the throughput. This paper investigates the saturated and non-saturated load throughputs of IEEE 802.11 DCF (distributed coordinated function) in the presence of a selfish node. Using a modified Markov model, we have derived the throughput of a node under various traffic loads in the PHY (PHYsical) layer using DSSS (direct sequence spread spectrum) and the wireless MAC (medium access layer). The analytical model and throughput results have been validated by simulations.
基于自节点的IEEE 802.11 DCF吞吐量建模与分析
自利节点在无线自组织网络中的作用研究近年来备受关注。然而,大多数工作都集中在仿真研究上,而缺乏准确预测吞吐量的分析研究。本文研究了IEEE 802.11分布式协调函数(DCF)在存在自利节点时的饱和和非饱和负载吞吐量。使用改进的马尔可夫模型,我们使用DSSS(直接序列扩频)和无线MAC(介质访问层)推导了PHY(物理层)中不同流量负载下节点的吞吐量。仿真结果验证了分析模型和吞吐量的正确性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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