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In this paper, the authors propose a routing scheme for multimedia service based on multiple QoS constraints in MANETs called QoS-Based Dynamic Source Routing (QDSR). QDSR gathers information about available bandwidth, link delay and signal strength during route discovery and uses the information in route decision process. They evaluate the performance of their proposed scheme via simulations. The simulation results show that QDSR provides the significant improvement in protocol performance metric applied in their measurement, such as throughput, packet delivery ratio, packet loss rate and routing load comparing with another on demand QoS routing protocol.
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