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Adaptive Expanding Ring Search Based per hop behavior Rendition of Routing in MANETs

Computers, Materials & Continua 2021年第4期67卷 1137-1152页

作者： Durr-e-Nayab Mohammad Haseeb Zafar Mohammed Basheri Faculty of Electrical and Computer Engineering University of Engineering and TechnologyPeshawar25120Pakistan Faculty of Computing and Information Technology King Abdulaziz UniversityJeddah21589Saudi Arabia

Routing protocols in Mobile Ad Hoc Networks(MANETs)operate with Expanding Ring Search(ERS)mechanism to avoid ooding in the network while tracing *** mechanism searches the network with discerning Time to Live(TTL)values described by respective routing protocol that save both energy and *** work exploits the relation between the TTL value of a packet,trafc on a node and ERS mechanism for routing in MANETs and achieves an Adaptive ERS based per hop behavior(AERSPHB)rendition of requests *** search request is classied based on ERS attributes and then processed for routing while monitoring the node *** algorithms are designed and examined for performance under exhaustive parametric setup and employed on adaptive premises to enhance the performance of the *** network is tested under congestion scenario that is based on buffer utilization at node level and link utilization via back-off stage of Carrier Sense Multiple Access with Collision Avoidance(CSMA/CA).Both the link and node level congestion is handled through retransmission and rerouting the packets based on ERS *** aim is to drop the packets that are exhausting the network energy whereas forward the packets nearer to the destination with *** simulations are carried out for network scalability,node speed and network terrain *** results show that the proposed models attain evident performance enhancement.

关键词： Expanding ring search mobile ad hoc networks multi hop wireless networks on-demand ad hoc networks per hop behavior quality of servi

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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

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