Delay Performance in Unsaturated IEEE 802.11 Multi-hop Wireless Networks
Date Issued
2007
Date
2007
Author(s)
Chen, Chun-Ta
DOI
en-US
Abstract
Media access delay is an important performance measurement in wireless networks. In this thesis, we provide a model of the media access delay in IEEE 802.11 multi-hop wireless networks under unsaturated background traffic. With this model, we are able to provide not only the average delay, but also the variance and probability distribution of this delay. In our model, we considered various variables in network performance, including 802.11 protocol design, hidden terminal problem, and topology of the wireless nodes. In addition, we provide a simple statistical measurement to identify the state of saturation in 802.11 wireless networks, and how this state effect on the accuracy of the analysis. In the simulation, we can see that this model will result in an accurate estimation of delay distribution when the requirements of an unsaturated network are met.
Subjects
多跳
無線網路
延遲
機率分佈
multi-hop
wireless networks
delay
probability distribution
Type
thesis
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