机坪感知场景下WSN-ON接入机制与协议

WSN-ON access mechanism and protocol under apron awareness environment

针对机坪网络WSN(wireless sensor network)-ON(opportunistic network)的接入问题,利用ON束协议的方式提出了一种基于博弈论的WSN与ON相融合的簇首选举方法(cluster head election method based on game theory,CEGT),在机坪网络特殊的接入环境下,CEGT可有效改善网络的连通性.在WSN节点分簇阶段,通过衡量多种节点的社会属性建立博弈模型,可使网络能耗更加均衡地选取簇首.在束协议下,簇首与移动智能体(M-agent)通信的有效性,即接入质量决定网络的品质性能.仿真结果表明:使用CEGT控制方法可合理选举簇首,将节点死亡率降低到57%,达到延长网络生命周期的目的;在束协议下,节点数目及缓存容量不同时,相比无M-agent边界区域的情况,M-agent产生的相遇机会使簇首的投递率有明显提高,实现了ON的高效接入.

Aiming at the access problem of WSN(wireless sensor network)-ON(opportunistic network),a cluster head election method based on game theory(CEGT)was proposed by the ON bundle protocol.CEGT could effectively improve the network connectivity under the special access environment of apron network.In the WSN node clustering stage,the game model was established by measuring the multiple social attributes of node to elect the cluster head more energy-efficiently.Under the bundle protocol,the effectiveness of the communication between cluster head and mobile agent(M-agent)was the access quality,which determined the quality of the network.The simulation results show that CEGT control method can reasonably elect the cluster head and reduce the node mortality to 57%for extending the network life cycle.Under the bundle protocol,when the numbers of nodes and buffer size are different,compared with non M-agent boundary,the encounter opportunities by M-agent can improve the delivery rate of cluster heads and achieve efficient ON access.