基于节点行为的机会网络路由协议

Opportunistic Network Routing Protocol based on Node Behavior

高移动性、频繁中断、稀疏链接、没有基础设施和有限的资源被认为是机会网络的特点。在这样的网络中路由是最大的挑战,在此提出了一个新的基于节点行为的机会网络路由协议(OPNB),用节点的行为信息预测节点在网络中的移动,为消息路由到目标节点发现和选择更好的下一跳节点。协议还集成了对接收消息的确认,有助于中间节点的缓存管理。通过与epidemic路由协议和Probabilistic路由协议比较,OPNB协议在消息的交付数量、开销比率、平均延迟和缓存时间方面的表现相当不错。

High mobility, frequent disconnections, sparse connectivity, no infrastructure, and limited resources are considered to be norms rather than hindrances. Routing being the biggest challenge in such networks leads us to propose a new Opportunistic network routing protocol based on node behavior（OPNB） which uses the behavioral information of the nodes to make predictions about their movements in the network. This helps to node find and select a better next hop for the message to be routed to the destination. It also incorporates a method for the acknowledgment of the received messages, which helps in the buffer management of the intermediate nodes. Through compared against epidemic routing and Probabilistic routing protocol,the OPNB performs fairly well in terms of number of messages delivered, average residual energy, overhead ratio, and average latency.