Adaptive link quality estimation for wireless ad hoc networks

Due to the complexity and time-variation of wireless channel, it is a great challenge to measure and estimate the channel quality accurately in wireless ad hoc network. To address this problem, we propose a link quality estimator which use the packet loss rate (PLR), round trip time (RTT), available...

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Bibliographic Details
Published in2009 7th International Conference on Information, Communications and Signal Processing pp. 1 - 5
Main Authors Zheng Wu, Wai-Choong Wong, Jiankang Wu
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.12.2009
Subjects
Ad Hoc Networks
Bandwidth
Broadcasting
Electric variables measurement
Error probability
Feedback
Hidden Markov models
Information science
Link Quality Estimation
Mobile ad hoc networks
Resource management
State estimation
UKF
Wireless Link Modeling
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ISBN9781424446568
1424446562
DOI10.1109/ICICS.2009.5397723

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Summary:Due to the complexity and time-variation of wireless channel, it is a great challenge to measure and estimate the channel quality accurately in wireless ad hoc network. To address this problem, we propose a link quality estimator which use the packet loss rate (PLR), round trip time (RTT), available bandwidth (ABW) at the sender and the feedback information from receiver to continuously tracks the channel error probability and the collision probability of the receiver by using an Unscented Kalman Filter (UKF). Through experiments we demonstrate that our link estimator can quickly adapt to the temporal dynamics of the links and accurately predict the link quality, which is more accurate than the traditional broadcasting-based method.
ISBN:9781424446568
1424446562
DOI:10.1109/ICICS.2009.5397723