OIECE: One-hop information enhanced cooperation enforcement scheme for MANETs

To cope with the selfish nodes in mobile ad hoc networks (MANETs), the paper proposes a new cooperation enforcement scheme, called the OIECE, to quickly detect and isolate the non-cooperation nodes, decreasing their effect on the networks' performance. In OIECE, each node broadcasts its detecting result to neighbors periodically, making its neighbors find the non-cooperative nodes around it quickly and isolate them from the networks. In the route discovery phase, all the nodes between the source node and the destination node filter the route requests and the route replies, suppressing the routes containing non-cooperative nodes. In the forwarding phase, the source node gives priority to the routes include trust nodes, making the packets more possibly arrive at the destination node. The simulation results show that OIECE can highly improve the throughput of cooperative nodes and severely punish the non-cooperative nodes.