Attracting much research attention recently, opportunistic routing and network coding are considered as extremely capable routing/coding schemes for boosting feasible throughput in wireless mesh networks featuring lossy links. Unfortunately, opportunistic routing schemes implicitly allow each individual flow to eagerly consume network resources without considering other concurrent flows. The selfish manner of an opportunistic flow leads to a poor performance in multi-flow scenarios. In this paper, we design a QoS-aware and application service priority level-dependent queuing mechanism to efficiently support multi-flow scenarios. We base our protocol on a well-known opportunistic routing protocol (MORE) which employs network coding as well. Our scheme significantly increases the overall throughput seen by each individual flow while considering their priorities.
