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2007

QoS multicast routing by using multiple paths/trees in wireless ad hoc networks

8 years 11 months ago
QoS multicast routing by using multiple paths/trees in wireless ad hoc networks
In this paper, we investigate the issues of QoS multicast routing in wireless ad hoc networks. Due to limited bandwidth of a wireless node, a QoS multicast call could often be blocked if there does not exist a single multicast tree that has the requested bandwidth, even though there is enough bandwidth in the system to support the call. In this paper, we propose a new multicast routing scheme by using multiple paths or multiple trees to meet the bandwidth requirement of a call. Three multicast routing strategies are studied, SPT (shortest path tree) based multiple-paths (SPTM), least cost tree based multiple-paths (LCTM) and multiple least cost trees (MLCT). The final routing tree(s) can meet the user’s QoS requirements such that the delay from the source to any destination node shall not exceed the required bound and the aggregate bandwidth of the paths or trees shall meet the bandwidth requirement of the call. Extensive simulations have been conducted to evaluate the performance ...
Huayi Wu, Xiaohua Jia
Added 08 Dec 2010
Updated 08 Dec 2010
Type Journal
Year 2007
Where ADHOC
Authors Huayi Wu, Xiaohua Jia
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