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针对间断连接无线网络中节点能量有限、节点间相遇持续时间较短和网络资源无法得到充分利用的问题,提出一种带有自适应异步唤醒的数据转发策略,综合考虑节点能耗和休眠机制,并结合灰色模型预测节点间相遇持续时间,优化节点探测阶段和数据转发阶段的能耗,进而实现高效数据转发的目的.结果表明:所提出的数据转发策略能够有效利用节点剩余能量和通信机会.与现有的转发策略相比,该策略能够在低能耗下有效改善网络的探测成功率和通信时延.
Aiming at the problem of limited energy of nodes in discontinuous connection wireless network, short duration of node-to-node encounter and network resource can not be fully utilized, a data forwarding strategy with adaptive asynchronous wake-up is proposed. Considering node energy consumption and hibernation mechanism, Combined with the gray model to predict the duration of the node-to-node collisions and optimize the energy consumption during the detection phase and the data forwarding phase of the node to achieve the purpose of efficient data forwarding.The results show that the proposed data forwarding strategy can effectively utilize the node residual energy and communication opportunities. Compared with the existing forwarding strategy, this strategy can effectively improve the network detection success rate and communication delay under low power consumption.