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由于网络拓扑高度动态变化、带宽资源昂贵等因素,使得MANET组通讯协议研究具有高度挑战性。提出一种层次化并基于路由信息进行跨层优化的组通讯协议HCLP(Hierarchical Cross Layer Protocol)。HCLP综合考虑节点能力和节点之间距离两个因素,形成一个由超级节点和叶子节点组成的应用层覆盖网。超级节点之间用gossip机制、超级节点与叶子节点之间用单播进行数据传输,同时周期性调整和维护覆盖网拓扑。仿真数据验证了HCLP的高可靠、低开销等性能。
Due to the highly dynamic network topology changes, high bandwidth resources and other factors, MANET group communication protocol research is highly challenging. This paper proposes a hierarchical communication protocol named Hierarchical Cross Layer Protocol (HCLP) based on routing information to optimize cross-layer routing. HCLP synthetically considers node capacity and distance between nodes, forming an application layer overlay network composed of super nodes and leaf nodes. Gossip mechanism between super nodes, data transmission between the super node and leaf nodes by unicast, and periodically adjust and maintain the coverage network topology. Simulation data verify the HCLP’s high reliability, low cost and other performance.