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APHD: End-to-End Delay Assurance in 802.11e Based MANETs

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3 Author(s)
Jian Li ; Department of Computer Science, University of California at Davis, Davis, CA 95616. Email: ; Zhi Li ; Prasant Mohapatra

In this paper we present an adaptive per hop differentiation (APHD) scheme towards achieving end-to-end delay assurance in multihop wireless networks. Our APHD scheme extends the capability of IEEE 802.11e EDCA technique into multihop environments by taking end-to-end delay requirement into consideration. At an intermediate node, based on data packet's end-to-end requirement, its accumulative delay so far, and the current node's channel status, APHD smartly adjusts a data packet's priority level in order to satisfy its end-to-end delay requirement. Simulation results show that APHD scheme can provide excellent end-to-end delay assurance while achieving much higher network utilization, compared to a pure EDCA scheme

Published in:

2006 Third Annual International Conference on Mobile and Ubiquitous Systems: Networking & Services

Date of Conference:

July 2006