Based on full network coding

opportunistic routing can be applied to solve the problem of space reuse and redundant packet copies in mobile ad hoc networks.Large average delay and bursty arrival flow of packets make the routing defficient.An opportunistic routing based on partial network coding (OR-PNC) is proposed in this paper to encode packets using code vectors with variable length.Experimental results show that OR-PNC can effectively decrease packet average delay by 26% at most and make the arrival packet flow at destination nodes more smoothly.