A partial network coding based Real-Time Multicast scheme in MANETs

Traditional network coding can reduce forwarding times of data packets, but brings larger delay and network congestions. In this paper, we propose a Partial Network Coding based Real-time Multicast (PNCRM) scheme for supporting realtime multicast services in Mobile Ad-hoc Networks (MANETs). PNCRM combines the partial network coding with the establishment of mesh together. It can not only reduce the delay effectively, but also notably improves the final throughput performance. Simulation results show that, in a wide range of scenarios with varying number of receivers and/or high mobility, PNCRM outperforms PUMA or traditional network coding based real-time multicast protocols significantly in terms of packet delivery ratio and end-to-end delay.