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A Throughput-Driven Scheduling Algorithm of differentiated service for Web Cluster

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Wuhan University Journal of Natural Sciences 2006年第1期11卷 88-92页

作者： YAN Cai-rong SHEN Jun-yi PENG Qin-ke WAN Yong-quan Software Institute Xi＇ an Jiaotong University Xi＇ an 710049 Shaanxi China

Requests distribution is an key technology for Web cluster server. This paper presents a throughput-driven scheduling algorithm （TDSA）. The algorithm adopts the throughput of cluster back-ends to evaluate their load and employs the neural network model to predict the future load so that the scheduling system features a self-learning capability and good adaptability to the change of load. Moreover, it separates static requests from dynamic requests to make full use of the CPU resources and takes the locality of requests into account to improve the cache hit ratio. Experimental re suits from the testing tool of WebBench^TM show better per formance for Web cluster server with TDSA than that with traditional scheduling algorithms.

关键词： Web cluster server throughput-driven scheduling algorithm differentiated service

A differentiated service Architecture for Wireless Ad Hoc Networks

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A Differentiated Service Architecture for Wireless Ad Hoc Ne...

ECC:Edge Collaborative Caching Strategy for differentiated services Load-Balancing

2005'第四届光互联网国际学术会议

作者： Zhao Wei-Hang Wang Yu-ling Li Yun Long Ke-ping (School of Electronic Engineering Beijing University of Posts & Telecommunications Beijing 100876 China) (Special Research Centre for Optical Internet & Wireless Information Networks CnongQing University of Posts & Telecommunications Chongqing 400065 China)

＜正＞The QoS supporting is a hot researching issue in wireless ad hoc networks. In this paper, we propose a differentiated service architecture for wireless ad hoc networks. The performance of proposed architecture is evaluated by simulation. The simulation results show that the proposed architecture can provide better services for higher prioritized flows when the network resources are insufficient.

关键词： wireless ad hoc networks differentiated service architecture

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Computers, Materials & Continua 2021年第11期69卷 2045-2060页

作者： Fang Liu Zhenyuan Zhang Zunfu Wang Yuting Xing School of Design Hunan UniversityChangshaChina School of Computer Science and Engineering Sun Yat-Sen UniversityGuangzhouChina Department of Computing Imperial College LondonUK

Due to the explosion of network data traffic and IoT devices,edge servers are overloaded and slow to respond to the massive volume of online requests.A large number of studies have shown that edge caching can solve this problem *** paper proposes a distributed edge collaborative caching mechanism for Internet online request services *** solves the problem of large average access delay caused by unbalanced load of edge servers,meets users’differentiated service demands and improves user *** particular,the edge cache node selection algorithm is optimized,and a novel edge cache replacement strategy considering the differentiated user requests is *** mechanism can shorten the response time to a large number of user *** results show that,compared with the current advanced online edge caching algorithm,the proposed edge collaborative caching strategy in this paper can reduce the average response delay by 9%.It also increases the user utility by 4.5 times in differentiated service scenarios,and significantly reduces the time complexity of the edge caching algorithm.

关键词： Edge collaborative caching differentiated service cache replacement strategy load balancing

Web Caching： A Way to Improve Web QoS

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Journal of Computer Science & Technology 2004年第2期19卷 113-127页

作者： Ming-KuanLiu Fei-YueWang DanielDajunZeng TheLabforComplexSystemsandIntelligentSciences InstituteofAutomationTheChineseAcademyofSciencesBeijing100080P.R.China SystemsandIndustrialEngineeringDepartment UniversityofArizonaTucsonAZ85721USA ManagementInformationSystemsDepartment UniversityofArizonaTucsonAZ85721USA

As the Internet and World Wide Web grow at a fast pace, it is essential that the Web's performance should keep up with increased demand and expectations. Web Caching technology has been widely accepted as one of the effective approaches to alleviating Web traffic and increase the Web Quality of service (QoS). This paper provides an up-to-date survey of the rapidly expanding Web Caching literature. It discusses the state-of-the-art web caching schemes and techniques, with emphasis on the recent developments in Web Caching technology such as the differentiated Web services, heterogeneous caching network structures, and dynamic content caching.

关键词： Web traffic Web caching Web QoS differentiated service dynamic content caching

A Novel Framework for IP DiffServ over Optical Burst Switching Networks

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Journal of Computer Science & Technology 2004年第6期19卷 948-954页

作者： Ke-PingLong YunLi RodneyS.Tucker Chong-GangWang SpecialResearchCentreforOpticalInternetandWirelessInformationNetworks（COIWIN）SchoolofCommunicationandInformationEngineering ChongqingUniversityofPostsandTelecommunications（CQUPT）Chongqing400065P.R.China ARCSpecialResearchCentreforUltraBroadbandInformationNetworks（CUBIN） DepartmentofElectricalandElectronicEngineeringUniversityofMelbourneVictoria3010Australia HongKongUniversityofScienceandTechnology HongKongSpecialAdministrativeRegion2010P.R.China

This paper presents a novel framework for IP differentiated services (DiffServ) over optical burst switching (OBS), namely, DS-OBS. The network architecture, functional model of edge nodes and core nodes, the control packet format, a novel burst assembly scheme at ingress nodes and scheduling algorithm of core nodes are presented. The basic idea is to apply DiffServ capable burst assembly at ingress nodes and perform different per hop behavior (PHB) electronic treatments for control packets of different QoS class services at core nodes. Simulation results show that the proposed schemes can provide the best differentiated service for expedited forwarding (EF), assured forwarding (AF) and best effort (BE) services in terms of end-to-end delay, throughput and IP packet loss probability. Keywords IP quality of service - differentiated service - per hop behavior - optical burst switching NoteThis work is supported by the National Natural Science Foundation of China (Grant No.90304004), the National Hi-Tech Development 863 Program of China (Grant No.2003AA121540), and the research grants by the Ministry of Education of China (Grant No.204125), the Chongqing Education Commission (Grant No.050309) and the Chongqing Science Commission.

关键词： IP quality of service differentiated service per hop behavior optical burst switching

A Queue Management Algorithm of Relative Discrimination for differentiated services

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A Queue Management Algorithm of Relative Discrimination for ...

Joint admission control algorithm in access network

第二十七届中国控制会议

作者： Yang Xiaoping,Chen Hong,Zhao Haiyan College of Communication Engineering,Jilin University,Changchun 130025,P.R.China

There is the problem of absolute discrimination in current Active Queue Management（AQM） algorithms for *** absolute discrimination usually results in dropping continuously for the connections which exceed Committed Information Rate（CIR） ,the throughput and link utilization of network are *** this paper we have presented an AQM algorithm,which we call Weighted-queue-length RIO-C（WRIO） .WRIO draws directly from the original RIO-C *** realizes relative discrimination of different drop precedence,and improves link *** analyze the action and rationality of queue thresholds for RIO-C and WRIO;the simulations show that threshold settings of WRIO are more *** can improve performance of network,especially for the networks with TCP traffics.

关键词： Network control differentiated service Active queue management RIO-C

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Frontiers of Electrical and Electronic Engineering in China 2008年第2期3卷 150-154页

作者： Linwei SHAN Jian YUAN Yong REN Xiuming SHAN Department of Electronic Engineering Tsinghua UniversityBeijing 100084China

To deal with long probing delay and inaccurate probing results in the endpoint admission control method,a joint local and end-to-end admission control algorithm is proposed,which introduces local probing of access net-work besides end-to-end *** local probing,the algorithm accurately estimated the resource status of the access *** shows that this algorithm can improve admission control performance and reduce users’average waiting time when the access network is heavily loaded.

关键词： admission control quality of service manage-ment access network differentiated service

Several Issues in the Development of Packet Transport Networks

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ZTE Communications 2010年第3期8卷 9-12页

作者： Jing Ruiquan China Telecom Corporation Limited Beijing Research Institute Beijing 100035 P. R. China

Several key issues affect the development and standardization of Packet Transport Networks （PTN） and Multiprotocol Label Switching Transport Profile （MPLS-TP）. These include the end-to-end Quality of service （QoS） mechanism, Layered network architecture, introduction of layer-3 functions, and data-plane Ioopback functions. This paper introduces several views on the construction and maintenance of PTN, and on the requirements of PTN services. After an analysis of Traffic Engineering （TE） based on Multiprotocol Label Switching （MPLS） and differentiated service （DiffServ）, a service-oriented end-to-end QoS guarantee mechanism is proposed. An alternative to introducing layer-3 functions into PTN is also proposed, based on PTN layered architecture defined in the available MPLS-TP standards and drafts. Requirements of data-plane loopback functions are discussed in conclusion.

关键词： Development Multiprotocol Label Switching differentiated service network architecture Traffic Engineering Quality of service PTN QoS guarantee MPLS maintenance development based DiffServ analysis Profile defined issues views paper key

An Efficient Round Robin Scheduling Algorithm for DiffServ Networks

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An Efficient Round Robin Scheduling Algorithm for DiffServ N...