NDLI: MARIA: Interference-Aware Admission Control and QoS Routing in Wireless Mesh Networks

Content Provider	IEEE Xplore Digital Library
Author	Xiaolin Cheng Mohapatra, P. Sung-Ju Lee Banerjee, S.
Copyright Year	2008
Description	Author affiliation: Dept. of Comput. Sci., Univ. of California at Davis, Davis, CA (Xiaolin Cheng; Mohapatra, P.)
Abstract	Interference among concurrent transmissions complicates QoS provisioning for multimedia applications in wireless mesh networks. In this paper we propose MARIA (mesh admission control and QoS routing with interference awareness), a scheme towards enhancing QoS support for multimedia in wireless mesh networks. We characterize interference in wireless networks using a conflict graph based model. Nodes exchange their flow information periodically and compute their available residual bandwidth based on the local maximal clique constraints. Admission decision is made based on the residual bandwidth at each node. We implement an on-demand routing scheme that explicitly incorporates the interference model in the route discovery process. It directs routing message propagations and avoids "hot-spots" with severe interference. Simulation results demonstrate that by taking interference into account MARIA outperforms the conventional approach. It finds routes with less interference and enhances the performance significantly. We use video as an example application and MARIA improves the quality of delivered videos, with up to 7.3 dB average PSNR gain.
Starting Page	2865
Ending Page	2870
File Size	456045
Page Count	6
File Format	PDF
ISBN	9781424420759
DOI	10.1109/ICC.2008.540
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-05-19
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Admission control Wireless mesh networks Quality of service Bandwidth Peer to peer computing Availability Routing protocols Streaming media Interference constraints Video sharing
Content Type	Text
Resource Type	Article

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