机会网络移动规律自适应的协同传输机制及技术研究

Opportunistic networks is of the significance on the development of pervasive computing, in which the cooperative transmission theory and technology is one of the focus and hotspot of the study in the opportunistic networks. We study the collaborative transmission mechanism and key technology by the network coding , game theory based on node movement pattern in opportunistic networks. The movemoent pattern of node is studied based on the mobile node's sociality in opportunistic networks. In order to imporve the amount of data transmission,an adaptive cooperative network coding mechanism and its decoding algorithm is designed based on mobile model. The segment network coding is designed according to the information relation carried by the network nodes to reduce the delay time of decode packet. We research the collaboration of each node in autonomy system, and the collaboration between autonomous systems to protect the data reliable transmission. According to the intermittent characteristics of the connection between the nodes of the autonomous system, adaptive punish uncooperative node of the program is designed based on mobile modes. Use of sharing information of the boundary nodes in the inter-domain, it will ensure reliable information transmission to the destination node.The project studies the collaboration network coding based on the mobile model to improve transmission efficiency. The node and the autonomous system is collaborate in order to ensure data transmission. It is of theoretical value and practical significance to the development of opportunistic networks.

机会网络对普适计算的发展具有重要意义，协同传输技术是机会网络中研究的重要和热点问题之一。基于机会网络节点的移动规律，本项目采用网络编码、博弈论等方法对协同传输机制及关键技术进行研究。基于节点移动的社会性，研究机会网络中节点的移动规律；设计自适应移动模型的协同网络编码机制、及协同网络编码的编码和解码算法，提高单次传输的数据量；根据移动节点携带的信息相关性，设计适应机会网络的分片网络编码，降低解码延时。基于机会网络的移动规律划分节点自治域，研究自治域内各个节点以及自治域之间的协同，根据自治域内各节点之间间歇连通的特点，设计自适应移动模型的惩罚机制，实现对不合作节点的惩罚；利用域间节点的边界信息共享，保证信息能可靠地传输到目的节点。本项目研究基于移动模型的协同网络编码提高传输效率，利用自治域内节点和域间的协同来保障数据信息的传输可靠性，将为机会网络的发展提供重要支撑。

机会网络作为一种不同于传统自组织网络的新兴网络，急需针对其实际的特点来研究协同传输关键技术，提高机会网络中的服务质量。本项目主要研究：（1）针对机会网络移动数据协同传输的特点，推导了满足提高网络性能理论值计算模型，提出了提高网络传输成功率的算法，同时针对机会网络减少能耗的问题，提出了基于结点减少能耗算法，并构建了机会网络路由环境下减少路由开销的模型，分析了结点之间的关系模型，设计了满足条件的路由开发算法；（2）针对机会网络移动数据协同传输技术过程中的特性，设计了有效的拓扑结构网络计算模型，提出最小传输延迟算法，并针对机会网络中数据传输冗余的问题，提出了一种有效的数据处理与迭代传输的算法，同时构建了机会网络路由环境下有效的感知能量补给方案；（3）针对机会网络移动数据协同传输技术过程中的特性，设计了有效的目标追踪算法，针对机会网络中数据传输延迟的问题，提出了一种有效的多跳节点最小传输延迟算法，同时针对机会网络中数据包转发的路由开销及能量消耗高的问题，提出了一种阶段性非增殖型传递算法。. 本项目研究基于移动模型的协同网络编码提高传输效率，利用自治域内节点和域间的协同来保障数据信息的传输可靠性，将为机会网络的发展提供重要支撑。