Epidemic routing protocol implementation in ns-3

Routing protocols play a significant role in the overall performance of ad-hoc wireless networks. Several routing protocols have been proposed for ad hoc environments. Any new proposed protocol should be compared with other routing protocols to show its performance under several scenarios. Epidemic routing was one of the first routing schemes proposed for DTNs (delay-tolerant networks). In this paper, we present our implementation of the epidemic routing protocol in the ns-3 simulator. We analyse its performance and compare with the previous ns-2 implementation. Our analysis conforms the results of the previous ns-2 implementation. Moreover, we compare our epidemic implementation to other MANET routing protocols in a delay tolerant environment and we show that epidemic routing outperforms other MANET routing protocols in terms of packet delivery at the expense of overhead and delay.