| |
| The traffic load of a centralized network is increasing substantially along with the boom of smart phones and more wireless data service. The situation will be much worse especially on the center of a city, campus, subway station and etc. Effective methods should be taken to change the situation as soon as possible so that we can enjoy a better service. In the places mentioned, there are always a lot of mobiles around. In other words, the nodes have a high opportunity to encounter with each other. More details, the nodes have some similar society properties. All these factors make it feasible that all the nodes transfer data with each other just by themselves and a reasonable transfer mechanism based on opportunistic routing is a good way to resolve the traffic load problem.The opportunistic network is a highly resource limited network and all the nodes go around without a definite path. Any two nodes from them may meet each other for a while and may separate from each other soon. However the nodes can implement communications between nodes based on the “store-carry-forward” routing pattern. The quality of the communications among the nodes highly depends on the corporation among them. However, some selfish nodes and malicious nodes try to break the corporation. Many research tried to solve the problem, but an effective incentive mechanism is urgent needed to enhance the network. This paper proposes a new enhanced incentive mechanism based on reputation, which aims to restrain the selfish nodes and malicious nodes then increase the network capacity and decrease the delivery delay. |
|
| Keywords:opportunistic network; incentive; network attack; society property |
|
