Interference-aware cooperative QoS routing in multi-hop wireless networks
Computers and Electrical Engineering
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Ad hoc networks have characteristics such as flexibility, fast and easy deployment, robustness which make them an interesting technology for various applications. Ad hoc networks are considered as the most promising terminal networks in future mobile communications. Providing sufficient bandwidth for multimedia applications in ad hoc networks is an urgent task because of the rising popularity of multimedia applications and potential commercial usage of ad hoc networks. Bandwidth is more difficult to guarantee in ad hoc networks than in other types of networks, and providing end-to-end bandwidth guarantee is a critical and challenging problem in ad hoc networks because of multihop, mutual radio interference and node mobility. A bandwidth-aware routing protocol of BARP, which is based on the existing Dynamic Source Routing protocol (DSR), is proposed in this paper in order to find a route of approximately maximum bandwidth for a flow from a source node to a destination node in a wireless ad hoc network. BARP is a novel bandwidth-aware routing protocol by which a route of largest bandwidth can be found. This routing protocol takes advantage of larger bandwidth than the existing work, and its effectiveness is demonstrated by some simulations. It will be a great contribution to end-to-end QoS support research in wireless ad hoc networks.