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A Novel Routing Method for Social delay-tolerant Networks

Tsinghua Science and Technology 2019年第1期24卷 44-51页

作者： Xiangyu Meng Gaochao Xu Tingting Guo Yongjian Yang Wenxu Shen Kuo Zhao the Department of Computer Science and Technology Jilin University the Department of Software Engineering Jilin University the Training Department Aviation University of Air Force

The lack of continuous connectivity and a complete path from source to destination makes node communication quite difficult in delay-tolerant Networks(DTNs). Most studies focus on routing problems in idealized network environments without considering social properties. Communication devices are carried by individuals in many DTNs; therefore, DTNs are unique social networks to some extent. To design efficient routing protocols for DTNs, it is important to analyze their social properties. In this paper, a more accurate and comprehensive metric for detecting the quality of the relationships between nodes is proposed, by considering the contact time, contact frequency, and contact regularity. An overlapping hierarchical community detection method is designed based on this new metric, and a tree structure is built. Furthermore, we exploit the overlapping community structure and the tree structure to provide message-forwarding paths from the source node to the destination *** simulation results show that our Routing method based on Overlapping hierarchical Community Detection(ROCD) achieves better delivery rate than SimBet and Bubble Rap, the classic routing protocols, without affecting the average delay.

关键词： delay-tolerant Network (DTN) social properties overlapping community hierarchical routing

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LanePost:Lane-Based Optimal Routing Protocol for delay-tolerant Maritime Networks

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China Communications 2017年第2期14卷 65-78页

作者： Xiongfei Geng Yongcai Wang Haoran Feng Lu Zhang China Waterborne Transport Research Institute Beijing China School of Software and Microelectronics Peking University Beijing Department of Computer Sciences Renmin University of China Beijing China National Engineering Research Center of Software Engineering Peking University Beijing China

***, *** radio links empowered by Wi Fi, Wi MAX etc have been recently exploited to build maritime *** mesh networks to provide internet services to *** users. However, because of the mobility of the vessels/ships and the large *** distances, nodes in the maritime network are frequently disconnected, forcing data communication in the maritime mesh networks to be opportunistic and ***. In this paper, we present Lane Post, an optimization approach for maritime *** routing protocol. We exploit the shipping lane information to predict the rendezvous opportunities of the ships to optimize the route selection in *** routing. In particular, we show that when the shipping lane information is available, an opportunistic routing graph(ORG) for each ship can be constructed to predict its *** data routing opportunities to the other ships or to the shore. Based on the ORG, we develop an optimal route protocol(i.e., Lane Post) for each ship to minimize its delay of *** packet delivery via dynamic programming. We discussed the ways of collecting shipping lane information by centralized method or distributed *** proposed Lane Post protocol was evaluated by ONE, an *** *** network simulator, which shows its dramatic performance improvement in terms of delay reduction compared to the *** opportunistic routing protocols.

关键词： delay-tolerant maritime multihop networks opportunistic routing traffic lane delay minimization waterway networks

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时延容忍传感器网络中抗黑洞攻击的安全路由协议

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计算机工程 2014年第11期40卷 121-125页

作者：陈思张宏李华峰涂庆华汤东阳南京理工大学信息化建设与管理处南京210094 南京理工大学计算机科学与工程学院南京210094 中国石化石油物探技术研究院南京211103

时延容忍网络是一种在大部分时间内源节点和目的节点之间不存在端到端路径,而依靠存储转发机制实现异步通信的无线自组织网络。针对其黑洞攻击的问题,设计一种能够检测黑洞节点的安全路由协议。分析时延容忍传感器网络模型和黑洞攻击模... 详细信息

时延容忍网络是一种在大部分时间内源节点和目的节点之间不存在端到端路径,而依靠存储转发机制实现异步通信的无线自组织网络。针对其黑洞攻击的问题,设计一种能够检测黑洞节点的安全路由协议。分析时延容忍传感器网络模型和黑洞攻击模型,给出基于传递证据的恶意节点检测方案,并将其与路由协议相融合。仿真结果表明,该协议可准确识别出恶意节点,并且在传感器网络环境中具有较好的路由性能。将安全路由协议应用于水下环境监测或城市交通控制等领域,可以避免其网络环境遭受恶意节点的攻击,保证网络的可靠性与稳定性。

关键词：时延容忍网络传感器网络黑洞攻击信任评价安全路由 delay-tolerant Network( DTN)

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