Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 71 for “"end-to-end delay"”.
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Discovering network topology by correlating end-to-end delay measurements
Conventional methods of discovering network topology require the cooperation of network elements. We present a method of network topology discovery based solely upon end-to-end delay measurements that requires only the cooperation of end systems. Previous work using end-to-end measurements has …
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A model for end-to-end delay in distributed computer systems
Mitchell [1,2] describes end-to-end performance for a LAN-based computer system as the total system throughput and delay for a single-thread transaction. This model is used for a variety of applications. The single-thread transaction might, for example, be a remote database update or a real-time …
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Adaptive Protocols to Improve TCP/IP Performance in an LMDS Network using a Broadband Channel Sounder
… changes in an adaptive data link layer protocol. We present an adaptive data link layer protocol that can use different levels of forward error correction (FEC) codes and link layer automatic retransmission request (ARQ) to improve network and transport layer performance. Using a simulation …
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Joint throughput and delay optimization in multihop networks
… require quality of service constraints such as end-to-end delay requirements, in addition to throughput guarantees. We have developed a framework for rate and delay assignment in order to analyze networks of users with both rate and end-to-end delay parameters. Within this theoretical framework, …
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The influence of transmission range on the performance of Vehicular AD-HOC Network (VANET)
… Network (MANET). The system has been developed to attain Dedicated Short Range Communication (DSRC) among vehicles (V2V) by consolidating existing technologies in which each vehicle is considered as a node. This type of communication is part of an Intelligent Transportation System (ITS) …
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Providing resilient quality of service connections in provider-based virtual private networks
… in the physical network than by its VPN customers in their VPNs. Next, a Multiprotocol Label Switching-based programmable VPN architecture is presented that delivers virtual links as resilient quality of service (QoS) connections and virtual sites. Virtual sites allow customers to implement …
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Link Establishment in Ad Hoc Networks Using Smart Antennas
Traditionally medium access control protocols for ad hoc networks have been designed for nodes using omni directional antennas. Through the use of directional antennas, it is possible to obtain higher efficiency. In this thesis we investigate the impact of these antennas on aggregate throughput and …
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Join rate control and scheduling for providing bounded delay with high efficiency in multihop wireless networks
… with elastic bandwidth requirements and hard end-to-end delay constraints in multi-hop wireless networks, with focus on source transmission rates and link data rates as the key resource allocation decisions. Specifically, the research objective is to develop a source rate control and …
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Joint rate control and scheduling for providing bounded delay with high efficiency in multihop wireless networks
… with elastic bandwidth requirements and hard end-to-end delay constraints in multi-hop wireless networks, with focus on source transmission rates and link data rates as the key resource allocation decisions. Specifically, the research objective is to develop a source rate control and …
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Delay composition theory: A reduction-based schedulability theory for distributed real-time systems
… analysis methodology for studying the worst-case end-to-end delay and schedulability of real-time jobs in distributed systems. The main result is a simple delay composition rule, that computes a worst-case bound on the end-to-end delay of a job, given the computation times of all other jobs that …
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Virtualized dynamic resource allocation algorithm for the internet Diffserv domains
… for providing different levels of service to the Internet Protocol (IP) traffic. Current discussions in the DiffServ networks are focused on managing resources dynamically according to the traffic conditions of the DiffServ router (Per Hop Behaviour). Software Defined Networks (SDN) and …
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Real-time Delay Prediction and Quality of Service Assurance for Traffic Management in Service Systems
… A key metric of the QoS is the experienced delay by the customers, which can depend on various factors such as the demand patterns, service capacity and the scheduling discipline. In this thesis, we study delay distribution prediction in service networks and propose novel QoS assurance …
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AAL2 signalling framework to support a Gigabit AAL2 switching node
… voice in a packet based network, are end-to-end delay and the efficient use of available bandwidth.
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Hybrid probabilistic broadcast schemes for mobile ad hoc networks
… instance, extensively used in many routing protocols for route discovery process. The dynamic topology and limited communication bandwidth of such networks pose a number of challenges in designing an efficient broadcasting scheme for MANETs. The simplest approach is flooding, where each node …
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Network level performance of differentiated services (diffserv) networks
… DiffServ networks at the network level, such as end-to-end QoS, network stability, and fairness of bandwidth allocation over the entire network have been extensively investigated. It has been shown in literature that the end-to-end delay of EF traffic can go to infinity even in an …
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Programmable cyber networks for critical infrastructure
… and security interests. Such systems rely on automation to perform complex control tasks to avoid malfunction caused by human error. However, such automation requires coordination of their components. Such coordination relies on several guarantees of safety and performance from their underlying …
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Multipath routing and quality of service support for mobile ad hoc networks
… and diversity in the underlying network to provide benefits such as fault tolerance, load balancing, capacity aggregation and the improvement in QoS metrics such as delay. In the first part of the thesis, a multipath routing scheme, referred to as Shortest Multipath Source (SMS) routing …
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When Decision Meets Estimation: Theory and Applications
… estimation are involved. This dissertation intends to study the relationship between decision and estimation in these problems, so that more accurate inference methods can be developed. Hybrid estimation is an important formulation that deals with state estimation and model structure …
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An improved MultiAnts-Aodv routing protocol for ad hoc wireless networks
Compared to the conventional table-driven and on-demand routing protocols, a hybrid routing protocol [71], which uses mobile agents and reactive route discovery, introduced a more realistic solution to this problem. However, the mobile agents were not fully exploited in this protocol. In this …
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