A QoS-aware routing mechanism for multi-channel multi-interface ad-hoc networks

To accommodate real-time multimedia application while satisfying application QoS requirements in a wireless ad-hoc network, we need QoS control mechanisms. In this paper, we propose a new routing mechanism to support real-time multimedia communication by efficiently utilize the limited wireless network capacity. Our mechanism considers a wireless ad-hoc network composed of nodes equipped with multiple network interfaces to each of which a different wireless channel can be assigned. 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 QoS requirements. Through simulation experiments, we confirmed that our proposal effectively routed multimedia packets over a logical path avoiding congested links. As a result, the load on a network is well distr...

• Type: Journal
• Year: 2011
• Where: ADHOC
• Authors: Shinsuke Kajioka, Naoki Wakamiya, Hiroki Satoh, Monden Kazuya, Masato Hayashi, Susumu Matsui, Masayuki Murata
• Keywords: Ad-hoc Network, ADHOC 2011, Distributed And Parallel Computing, Wireless Ad-hoc, Wireless Ad-hoc Network