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Efficient Clustering routing Algorithm Based on opportunistic routing

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International Journal of Communications, Network and System Sciences 2016年第5期9卷 198-208页

作者： Fan Wang Yan Yang Kunpeng Wang Xiaopeng Hu Ning Zhang School of Computer Science and Technology Dalian University of Technology Dalian China School of Computer and Information Technology Liaoning Normal University Dalian China

Based on the analysis of the existing classic clustering routing algorithm HEED, this paper proposes an efficient dynamic clustering routing algorithm ED-HEED. In the cluster selection process, in order to optimize the network topology and select more proper nodes as the cluster head, the proposed clustering algorithm considers the shortest path prediction of the node to the destination sink and the congestion situation. In the data transmission procedure, the high-efficiency CEDOR opportunistic routing algorithm is applied into the ED-HEED as the data transmission mode between cluster headers. A novel adaptive dynamic clustering mechanism is also considered into the algorithm, as well as the data redundancy and security control. Our Simulation demonstrates that the ED-HEED algorithm can reduce the energy consumption, prolong the network life and keep the security and availability of the network compared with the HEED algorithm.

关键词： Wireless Sensor Network opportunistic routing Clustering routing Algorithm Congestion Control

A Cluster-Based opportunistic Multicast in Multi-hop Wireless Networks

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Chinese Journal of Electronics 2015年第1期24卷 170-175页

作者： ZHANG Haiyang Beijing Key Laboratory of Intelligent Telecommunications Software and Multimedia Beijing University of Posts and Telecommunications

Multicast has become increasingly important in multi-hop wireless networks for such applications which deliver shared media and data to multiple ***, the existing multicast protocols for wireless network have large control overhead, and cannot adequately take the advantage of broadcast communication mode in multicast structure for sharing the forwarding path. This paper proposes a Cluster-based opportunistic multicast(COM) algorithm, which constructs multicast tree structure based on clusters by utilizing a stability greedy algorithm to achieve the minimum total Cluster-based expected transmission count(CETX). In this multicast tree structure, the edge is created between the kernel sets respectively belonging to two clusters for improving the forwarding efficiency and the stability of this structure. In the process of data distribution, our multi-layer solution combines multicast and opportunistic routing to improve the efficiency of transmission. Simulation results show that COM scheme can achieve the less total number of sending packets, and higher stability than other topology-based solutions and opportunistic multicast.

关键词： Multi-hop wireless network Multicast opportunistic routing Cluster.

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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Secure Localization Based Authentication (SLA) Strategy for Data Integrity in WNS

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Computers, Materials & Continua 2021年第6期67卷 4005-4018页

作者： V.Manikandan M.Sivaram Amin Salih Mohammed V.Porkodi K.Shankar Assistant Professor Research Research CenterLebanese French UniversityErbil44001Iraq Vice President Lebanese French UniversityErbil44001Iraq Department of Information Technology College of Engineering and Computer ScienceLebanese French UniversityErbil44001Iraq Department of Computer Applications Alagappa UniversityKaraikudi630003India

Wireless Sensor Networks(WSN)has been extensively utilized as a communication model in Internet of Things(IoT).As well,to offer service,numerous IoT based applications need effective transmission over unstable *** ensure reliability,prevailing investigations exploit multiple candidate forwarders over geographic opportunistic routing in ***,these models are affected by crucial denial of service(DoS)attacks,where huge amount of invalid data are delivered intentionally to the receivers to disturb the functionality of ***,secure localization based authentication(SLA)is presented to fight against DoS attack,and to fulfil the need of reliability and *** examining state information,SLA projects a trust model to enhance efficacy of data ***,of the prevailing opportunistic protocols,SLA guarantees data integrity by modelling a trust based authentication,providing protection against DoS attackers and diminishing computational ***,this model acts as a verification strategy to accelerate?attackers and to handle *** strategy helps SLA in eliminating duplicate transmission and by continuous verification that results from conventional opportunistic *** is performed in a MATLAB environment that offers authentic and reliable delivery by consuming approximately 50%of the cost in contrast to other *** anticipated model shows better trade off in comparison to the prevailing ones.

关键词： Wireless sensor networks opportunistic routing secure localization based authentication denial of service computational cost

Name Relevance and Contact Opportunity-Based routing Strategy for Mobile Content Sharing

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Journal of Beijing Institute of Technology 2018年第3期27卷 334-347页

作者： Chao Li Wei He Huimei Lu School of Computer Science and Technology Beijing Institute of Technology

With the rapid advancement of smart devices and mobile computing technologies,content sharing in dynamic wireless networks is in substantial *** address this problem,in our former work,we presented the Delay/Disruption-tolerant Mobile Content Sharing Network(DMCSN).In this paper,we further examine the routing strategy under the DMCSN *** first design the composite interest for organizing user ***,an interest routing strategy based on incremental name relevance(IRINR)and a content routing strategy based on incremental contact opportunity(CRICO)are devised to correspond to the two stages of the content acquisition process:the spreading of the interests and the returning of the *** simulation results validate the following:first,the composite interest can reduce redundant dissemination of content;second,matching of interests and contents are accomplished in a more cost-effective manner under the guidance of IRINR compared with baseline methods;and finally,the integration of IRINR and CRICO achieves a good balance between cost and performance.

关键词： opportunistic routing content-based name relevance contact opportunity composite interest

Offloading Mobile Data from Cellular Networks Through Peer-to-Peer WiFi Communication:A Subscribe-and-Send Architecture

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China Communications 2013年第6期10卷 35-46页

作者：芦效峰 HUI Pan Pietro Lio School of Computer Science Beijing University of Posts and Telecommunications Deutsche Telekom Laboratories Deutsche TelekomBerlin 10587Germany Computer Laboratory University of CambridgeCambridge CB3 0FDUK

Currently cellular networks do not have sufficient capacity to accommodate the exponential growth of mobile data *** can be delivered between mobile terminals through peer-to-peer WiFi communications(*** direct),but contacts between mobile terminals are frequently disrupted because of the user *** this paper,we propose a Subscribe-and-Send architecture and an opportunistic forwarding protocol for it called *** Subscribe-and-Send,a user subscribes contents on the Content Service Provider(CSP) but does not download the subscribed *** users who have these contents deliver them to the subscribers through WiFi opportunistic peer-to-peer *** simulations provide a robust evaluation of the forwarding performance and the traffic offloading performance of Subscribe-and-Send and HPRO.

关键词： mobile Internet cellular networks offioad opportunistic routing delay tolerant networks peer-to-peer WiFi

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Defense of a Variant of Rushing Attack on ExOR

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Defense of a Variant of Rushing Attack on ExOR