突发灾难环境下混合式移动社会网络的消息分发机制研究

项目名称： 突发灾难环境下混合式移动社会网络的消息分发机制研究

项目编号： No.61502118

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 自动化技术、计算机技术

项目作者： 冯光升

作者单位： 哈尔滨工程大学

项目金额： 21万元

中文摘要： 突发灾难时，及时高效的消息分发将为紧急救援抢得“黄金时间”。在以资源受限、连接受限和移动受限为典型特征的突发灾难环境下，现有消息分发机制效率较低甚至失效。在此背景下，提出混合式移动社会网络的消息分发机制研究，探索利用网络状态弱反馈能力和结构互补特性进行高效消息分发的新途径。首先，提出一种基于事件关联感知的消息生成方法，从源头上减少冗余，降低注入到网络中的无效负载；其次，提出一种基于混合拓扑模型的选路方法，降低复杂拓扑结构和环境因素的影响，提升消息选路效率；再次，提出一种基于网络状态弱反馈的消息分发控制机制，利用确定性局部资源和不确定性全局状态来增强消息分发能力；最后，提出一种基于摆渡策略的消息分发机会增强方法，探索不受普通节点移动模式限制的摆渡策略，弥补网络连通能力不足的问题。以上目标的实现，将为突发灾难时的消息分发效率保障提供新途径，为混合式移动社会网络的实际应用提供理论依据和方法参考。

中文关键词： 移动社会网络；突发灾难环境；消息分发；混合拓扑模型

英文摘要： Timely and efficient message dissemination will be beneficial for grabbing the golden period of emergency relief when disasters happen abruptly. The existing message dissemination methods are lack of efficiency and even unavailable under the resource-constrained, connection-constrained and mobility-constrained disaster environments. Therefore, we explore new ways to disseminate messages efficiently by using complementary features and weak feedback capabilities of hybrid mobile social networks (HMSNs) under such environments. Firstly, a message generation method based on event-correlation awareness is proposed for reducing redundancy at sources and useless load injected in networks. Secondly, a hybrid topology model is built to realize efficient message routing by avoiding the impact of complex topologies and environmental factors. Furthermore, using deterministic local resources and non-deterministic global states, a message dissemination control mechanism based on weak feedback of network states is proposed for enhancing performance of message dissemination, and an opportunistic message dissemination enhancing with ferries is proposed for improving network connectivity capability. This project is a new trial for guaranteeing the efficiency of message dissemination under disasters, and provides theories and methods for further applications of hybrid mobile social networks.

英文关键词： mobile social network;abrupt disaster environment;message dissemination; hybrid topology model