Abstract: We considered wireless mesh networks,and exploited the inherent broadcast nature of wireless by making use of opportunistic multipath routing．We presented an optimization framework that enables us to derive optimal flow control,routing,scheduling schemes,where we use network coding to ease the routing problem．The simulation shows that in the dense network with multi-flows,the algorithm can achieve higher throughput improvement and fairer allocation of bandwidth compared to other protocols of the same genre.

Key words: Network coding,Opportunistic routing,Multipath routing,Multi flow