Rate Allocation with Minimized Packet-Loss in Multi-Hop Wireless Ad Hoc Networks.

Due to time-varying topological changes in a wireless ad hoc network, it is a challenging issue to provide stringent qos requirements of most real-time applications. each real-time application requires a specific set of qos parameter guarantees (such as delay, jitter, packet loss. . . ). as multipath routing has the potential of reducing the congestion and increasing the throughput of the user traffic in multi-hop wireless networks, it is assumed that multiple paths are available in advance between each source-destination pair. in the current work, those subsets of real-time applications (such as video on demand), which require minimized packet loss and a lower bound on the delivered bandwidth, are taken into account. using a constrained optimization framework and trying to minimize the packet loss, an optimal rate is allocated to each source-destination path of the real-time application. simulation results verify the enhanced performance of the proposed method in terms of the packet error rate.