Abstract
In this paper, we investigate an on-demand, link-state, multi-path QoS (quality-of-service) routing protocol in a MANET, which is important for many real-time multimedia applications. The basic idea of the on-demand, link-state, multi-path routing protocol is to reactively collect link-state information from source to destination in order to dynamically construct a partial network topology which is only sketched from source to destination in a MANET. Therefore, a multi-path QoS routing protocol is proposed by finding multi-path routes at the destination under the CDMA-over-TDMA channel model, which satisfies a given bandwidth requirement. Existing work mainly aims to exploit a uni-path from source to destination. The destination accurately determines a QoS multipath routing and replies to the source host. This greatly improves the success rate by means of searching the QoS multi-path routing. Performance analysis results demonstrate that our proposed protocol outperforms other protocols.