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  1. Proceedings of the 2006 workshop on Dependability issues in wireless ad hoc networks and sensor networks (DIWANS '06)
  2. A QoS routing and admission control scheme for 802.11 ad hoc networks
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Detection and localization of sybil nodes in VANETs
A framework for incentive compatible topology control in non-cooperative wireless multi-hop networks
Dependable deployments of ad hoc and mesh networks
In-network fault tolerance in networked sensor systems
A QoS routing and admission control scheme for 802.11 ad hoc networks
Energy-aware scheduling with quality of surveillance guarantee in wireless sensor networks
Policy-based resource allocation in a wireless public safety network for incident scene management
Distributed fault detection of wireless sensor networks
Construction of a fault-tolerant wireless communication topology using distributed agreement
Contour estimation using collaborating mobile sensors

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A QoS routing and admission control scheme for 802.11 ad hoc networks

Content Provider ACM Digital Library
Author Chen, Shiwen Luo, Lin Liu, Hang Huang, King Raychaudhuri, Dipankar Gruteser, Marco
Abstract This paper presents an admission control mechanism for multirate wireless ad hoc networks. Admission control depends on precise estimates of bandwidth available in the network and the bandwidth required by a new flow. Estimating these parameters in wireless ad hoc networks is challenging due to the shared and open nature of the wireless channel. Available bandwidth can only be determined by also considering interference at neighboring nodes. Also, due to self-interference of flows the required bandwidth of a flow varies for each link of a route. The proposed admission control mechanisms is integrated with a hop-by-hop ad hoc routing protocol, thus enabling it to identify alternate routes if the shortest path is congested. Each node measures available channel bandwidth through passive monitoring of the channel. The mechanism improves estimation accuracy by using a formula that considers possible spatial reuse from parallel transmissions. The protocol also uses temporal accounting to enable bandwidth estimation across links using different bit-rates. Simulation results support that the admission control mechanism can effectively control the traffic load and that considering parallel transmission leads to improved bandwidth estimation accuracy. The admission control mechanism can admit more traffic while maintaining QoS.
Starting Page 19
Ending Page 28
Page Count 10
File Format PDF
ISBN 1595934715
DOI 10.1145/1160972.1160977
Language English
Publisher Association for Computing Machinery (ACM)
Publisher Date 2006-09-26
Publisher Place New York
Access Restriction Subscribed
Subject Keyword Qos routing Admission control Parallel transmission
Content Type Text
Resource Type Article
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