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qos routing based on mobile agent for LEO satellite IP networks

维普期刊数据库评论

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The Journal of China Universities of Posts and Telecommunications 2009年第6期16卷 57-63页

作者： RAO Yuan,WANG Ru-chuan College of Computer,Nanjing University of Posts and Telecommunications,Nanjing 230001,China College of Computer Nanjing University of Posts and Telecommunications Nanjing 230001 China

Current quality of service（qos） routing schemes for low earth orbit（LEO） satellites IP networks either neglect the varying population density or fail to guarantee end-to-end *** a remedy,qos routing protocol based on mobile agent（qosRP-MA） is ***-MA is a source-based routing *** connection requests arrive,qos mobile agents are dispatched from ingress satellite to explore routes,which migrate using satellite routing *** arriving in egress satellite,qos mobile agents migrate back towards ingress satellite to reserve *** construct satellite routing tables,load balancing routing algorithm based on mobile agent（LBRA-MA） is *** LBRP-MA,at regular intervals mobile agents launched on all satellites migrate autonomously to evaluate path cost and update routing ***,path cost between source and destination is evaluated considering satellite geographical position as well as inter-satellite link（ISL） ***,ISL congestion index is considered to update routing *** simulations on a Courier-like constellation,it shows that qosRP-MA can achieve guaranteed end-to-end delay bound with higher throughput,lower connection failing ratio and signaling overhead compared to high performance satellite routing（HPSR） scheme.

关键词： qos routing load balancing mobile agent satellite IP networks

Combining Single (Mixed) Metric Approach and Genetic Algorithm for qos routing Problem

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Journal of Southwest Jiaotong University(English Edition) 2004年第1期12卷 20-24页

作者：胡世余谢剑英 Automation Research Institute

A hybrid algorithm for the delay constrained least cost path problem is proposed through combination of single (mixed) metric approach and genetic algorithm. Compared with the known genetic algorithm for the same problem, the new algorithm adopts integral coding scheme and new genetic operator, which reduces the search space and improves the efficiency of genetic operation. Meanwhile, the single (mixed) approach accelerates the convergence speed. Simulation results indicate that the proposed algorithm can find near-optimal even optimal solutions within moderate numbers of generations.

关键词： qos qos routing Genetic algorithm

Research on the Basis of qos routing Protocol of Ad Hoc Network

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Research on the Basis of QoS Routing Protocol of Ad Hoc Netw...

2004 International Symposium on Distributed Computing and Applications to Business, Engineering and Science

作者： Chen Niansheng~(1 2) Li Layuan~1 1 School of Computer Science Wuhan University of Technology Wuhan 430063 China 2 Department of Computer Science Hubei Normal University Huangshi 435002 China

＜正＞Ad Hoc network is an ideal technology to set up a fast communication system for military use and civil *** is an important problem it faces of how to offer different qos for them;and qos routing technology is the key technology and a hot issue in *** article has analyzed and studied several kinds of qos routing algorithms that different researchers put *** has also compared and analyzed them from unidirectional link supports,multicast functions and qos parameter *** study helps to improve and perfect the qos routing technology ofAd Hoc network.

关键词： Ad Hoc network qos routing routing protocol

Distributed qos routing algorithm based on partheno-GA with binary coding

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Distributed QoS routing algorithm based on partheno-GA with ...

2007年中国智能自动化会议

作者：冯杰姜宁杨既春 Department of Mathematics Dalian University of Technology Operation Research Room Dalian Naval Academy

routing is a critical issue in networking *** basic problem of qos routing is to satisfy some network parameters constrained of many conditions which is a NP-complete problem and qos parameters are nondeterministic even *** practical heuristic algorithms are researched to solve such a *** on partheno-GA with binary coding,the network model and mathematical model of qos routing are constructed,and the distributed qos routing algorithm is put *** algorithm can be easily implemented through dividing the giant and complex network into some *** simulation result shows that the algorithm can meet increasing daily qos requirements on Internet,and improve performance more 10 times in time and space complexity compared with the source routing algorithms.

关键词： binary coding partheno-GA qos routing distributed algorithm simulation

Genetic Simulated Annealing Algorithm for qos routing

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Genetic Simulated Annealing Algorithm for QoS Routing

2012年计算机应用与系统建模国际会议

作者： Zhang Hui Huang Jihai Information Engineering College Zhongzhou University

This paper proposes the math model of qos routing. Then we present a genetic simulated annealing algorithm is proposed of qos routing. The results show that the new method to enhance the search ratio and the speed of ... 详细信息

关键词： qos routing delay constraint search ratio genetic simulated annealing algorithm

Multiple constraints-based qos multicast routing: model and algorithms

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Journal of Systems Engineering and Electronics 2005年第1期16卷 187-193页

作者： SunBaolin LiLayuan DepartmentofComputerScienceandTechnology WuhanUniversityofTechnologyWuhan430063P.R.China//DepartmentofMathematicsandPhysicsWuhanUnivereityofScienceandEngineeringWuhan430073P.R.China DepartmentofComputerScienceandTechnology WuhanUniversityofTechnologyWuhan430063P.R.China

Constraint-based multicast routing, which aims at identifying a path that satisfies a set of quality of service (qos) constraints, has became a very important research issue in the areas of networks and distributed systems. In general, multi-constrained path selection with or without optimization is a NP-complete problem that can not be exactly solved in polynomial time. Hence, accurate constraints-based routing algorithms with a fast running time are scarce, perhaps even non-existent. The expected impact of such a constrained-based routing algorithm has resulted in the proposal of numerous heuristics and a few exact qos algorithms. This paper aims to give a thorough, concise and fair evaluation of the most important multiple constraint-based qos multicast routing algorithms known today, and it provides a descriptive overview and simulation results of these multi-constrained routing algorithms.

关键词： multicast routing algorithm multiple constraints qos routing NP-complete.

qos multicast routing protocol in hierarchical wireless MANET

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Science in China(Series F) 2008年第2期51卷 196-212页

作者： LI LaYuan LI ChunLin Department of Computer Science Wuhan University of Technology Wuhan 430063 China

A wireless MANET is a self-configurable network in which mobile, battery-powered devices dynamically create and change the network topology without relying on any intrastructure or administrative support. It offers unique benefits for certain environments, but there are still several open issues to be resolved before realizing these benefits, including qos routing, multicasting, and mobility management. Specifically, an efficient qos multicast routing protocol is needed, This paper presents a hierarchical qos multicast routing protocol （QMRP） for mobile ad hoc networks. It can provide qos-sensitive routes in a scalable and flexible way, in the network environment with mobility. In the proposed QMRP scheme, each local node only needs to maintain local multicast routing information and/or summary information of other clusters （or domains） but does not require any global ad hoc network states to be maintained. The QMRP also allows any ad hoc group member to join/leave the multicast group dynamically and supports multiple qos constraints. This paper presents formal description and main procedures for realizing routing decision process of the QMRP and the proof of correctness and complexity analysis of the protocol. The performance measures of QMRP are evaluated using simulation. The simulation results verify the efficiency and availability of QMRP.

关键词： wireless ad hoc networks qos routing multicast hierarchical routing mobile wireless networks

Cross-Layer qos-Aware routing Protocol for Multi- Radio Multi-Channel Wireless Mesh Networks

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Cross-Layer QoS-Aware Routing Protocol for Multi- Radio Mult...

2012 IEEE 14th International Conference on Communication Technology

作者： Yuhuai Peng Lei Guo Qiming Gai College of Information Science and Engineering Northeastern University

This paper proposes a Cross-Layer qos-aware routing protocol based on OLSR （CLQ-OLSR） to support real-time multimedia communication by efficiently exploiting multi-radio and multi-channel *** constructing multi-layer virtual logical mapping over physical topology,we design two sets of routing mechanisms: physical modified OLSR protocol （M- OLSR） and logical routing,to accommodate network *** piggybacking bandwidth information in HELLO and Topology Control （TC） messages,each node disseminates topology and bandwidth information in the whole *** experiments on QualNet demonstrate that the proposed CLQ- OLSR outperforms single radio OLSR （SR-OLSR）,multi-radio OLSR （MR-OLSR） and OLSR with Differentiated Services （DiffServ） in terms of network aggregate throughput,end-to-end packet delivery ratio,end-to-end delay and end-to end delay jitter with reasonable message overheads and hardware *** particular,the network aggregate throughput for CLQ-OLSR can almost improve by 300% compared with the single radio case.

关键词： multi-radio multi-channel (MR-MC) wireless mesh networks (WMNs) qos routing cross-layer

Study and Simulation of qos-based routing for Wireless Sensor Networks Based on OPNET

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Study and Simulation of QOS-based Routing for Wireless Senso...

2006 the IET International Conference on Wireless Mobile & Multimedia Networks

作者： Bing Jiang Xue-Wu Zhang Shi-Zhi Chen Ping Yan Zi-Jiang Hu Hohai university (Changzhou) Jiangsu province China Anphenol-tuchel Electronics GmbH China Branch Jiangsu province China Changzhou institute of technology

＜正＞This paper addresses the qos routing, key technology to provide differential services and utilize the whole resource effectively for wireless sensor networks. Based on the analyzing of qos routing for wireless sensor networks, a new distributed qos routing algorithm, according to the minimum node energies simulation model, is presented. Using OPNET we make some simulation of this model. By analyzing the results we find this proposed algorithm can provide differential services both for real-time traffic and best-effort traffic. Besides, it can balance the energy and cost on the whole network and prolong the network lifetime by up to 500%.

关键词： wireless sensor networks qos routing directed diffusion OPNET simulation