Implementation and evaluation of multichannel multi-interface routing mechanism with QoS-consideration for ad-hoc networks

Authors:
Shinsuke Kajioka;Naoki Wakamiya;Hiroki Satoh;Kazuya Monden;Masato Hayashi;Susumu Matsui;Masayuki Murata
Affiliations:
Graduate School of Information Science and Technology, Osaka University, Osaka, Japan;Graduate School of Information Science and Technology, Osaka University, Osaka, Japan;System Development Laboratory, Hitachi, Ltd., Yokohama, Kanagawa, Japan;System Development Laboratory, Hitachi, Ltd., Yokohama, Kanagawa, Japan;Renesas Electronics Europe GmbH, Ratingen, Germany;System Development Laboratory, Hitachi, Ltd., Yokohama, Kanagawa, Japan;Graduate School of Information Science and Technology, Osaka University, Osaka, Japan
Venue:
EURASIP Journal on Wireless Communications and Networking - Special issue on simulators and experimental testbeds design and development for wireless networks
Year:
2010

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Abstract

To accommodate real-time multimedia application while satisfying application-level QoS requirements in a wireless ad-hoc network, we need QoS control mechanisms. We proposed a new routing mechanism for a wireless ad-hoc network composed of nodes equipped with multiple network interfaces. By embedding information about channel usage in control messages of OLSRv2, each node obtains a view of topology and bandwidth information of the whole network. Based on the obtained information, a source node determines a logical path with the maximum available bandwidth to satisfy application-level QoS requirements. In this paper, we evaluated feasibility of the proposal through simulation and practical experiments and confirmed that our proposal effectively transferred multimedia packets over a logical path avoiding congested links. The load on a network is well distributed and the network can accommodate more sessions than OLSRv2 and QOLSR.