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.
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Showing 1 to 20 of 26 for “"Packet forwarding"”.
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Opportunistic Packet Forwarding for Proactive Transport in Datacenters
… allow a new flow to blast a burst of unscheduled packets at line rate during the pre-credit phase. However, sending too many unscheduled packets could cause temporary traffic spikes that lead to queue build-ups, packet losses, and retransmissions, which are particularly detrimental to short flows. …
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Energy-efficient multi-criteria packet forwarding in multi-hop wireless networks
Reliable multi-hop packet forwarding is an important requirement for the implementation of realistic large-scale wireless ad-hoc networks. However, packet forwarding methods based on a single criterion, such as the traditional greedy geographic forwarding, are not sufficient in most realistic …
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Controlling Race Conditions in OpenFlow to Accelerate Application Verification and Packet Forwarding
… there are many race conditions between the data packets and control plane messages. Furthermore, these race conditions also increase the control plane workload and packet forwarding delay. We propose Attendre, an OpenFlow extension, to mitigate the ill effects of the race conditions in OpenFlow …
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NIRA : a new Internet routing architecture
… In addition, a novel route representation and packet forwarding scheme is designed such that a source and a destination address can uniquely represent a sequence of providers a packet traverses. Network measurement, simulation, and analytic modeling are used in combination to evaluate the …
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Improving Pan-African research and education networks through traffic engineering: A LISP/SDN approach
… probing mechanism showed a 47% reduction in packets required to complete measurements. An interactive geospatial topology visualization tool was designed to evaluate how NREN stakeholders could identify routes between NRENs. Usability evaluation showed that users were able to identify routes …
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Backpressure Policies for Wireless ad hoc Networks
… these issues. We first propose a heuristic packet forwarding scheme that solves the issue of high end-user delay and still provides near-optimal throughput. Next we develop a novel interference model that provides simple yet accurate interference relationships among users. Such a model is …
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Characterization of Selfish Behavior in Mobile Ad Hoc Networks through Virtual Emulation
… bandwidth-conserving strategies. As routing and packet forwarding are end results of cooperation, network performance is affected when nodes in the network behave selfishly to conserve their resources. Our work involves characterizing selfish behavior by nodes in ad hoc networks and assessing the …
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Scalable wide area ad-hoc networking
… System. This thesis makes use of geographic packet forwarding, geocasting and virtual home area concepts. It draws from the analogy between ad hoc networks and social networks. The Scalable Wide Area ad hoc network (SWAN), nodes update their location information with a geocast group whose …
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Performance, scalability, and flexibility in the RAW network router
… processors, to efficiently handle the task of packet routing. While capable of meeting the performance demanded of them, these custom network processors generally lack the flexibility to incorporate new features and do not scale well beyond that for which they were designed. Furthermore, they …
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Quality of Service in Vehicular Ad Hoc Networks: Methodical Evaluation and Enhancements for ITS-G5
… the GeoNetworking (GN) protocol prevent massive packet occurrences in a short time and hence congestion. Glow Forwarding is introduced as GN extension to distribute delay-tolerant information. The revised Decentralized Congestion Control (DCC) cross-layer supports low-latency transmission of …
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Building shape-shifting tries for fast IP lookup
… (IP) is a protocol used to communicate data over packet-switched internet works. The currently deployed version of the Internet Protocol is IPv4. It provides a 32-bit address space which can at most address four billion nodes. IPv6, the new version of the Internet Protocol, provides a 128-bit …
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Power conservation and performance analysis of mobile ad hoc wireless networks
… status adaptively to decide if they are fit for packet forwarding and reception. The research illustrates the power conserving behaviour of the new technique using an analytical approach and also by computer simulations. The results have shown that power savings of more than 15% were achieved …
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Software defined networking for radio telescopes: a case study on the applicability of SDN for MeerKAT
… and grow with SDN. SDN allows customised packet forwarding rules typically unattainable with standard routing and other standard network protocols and implementations. A radio telescope with a software-defined data network is resilient, easier to maintain, vendor-neutral, and possesses …
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High precision timing in passive measurements of data networks
… on software time-stamping and capture of packets will not scale to the required performance levels. Problems examined include the difficulty of gaining access to high speed network media to perform measurements, the insufficient resolution of time-stamping clocks for capturing fine detail …
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IP Networks Over Heterogeneous Embedded Serial Links
… to enable the flexible implementation of modular packet forwarders in userspace. It can be used to interconnect devices and their IP stacks across a variety of conventional and unconventional links. Interstice exposes a reprogrammable, dynamically-updatable packet-forwarding strategy, enabling …
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Software Switching for High Throughput Data Acquisition Networks
… adapt to bursty traffic without losing packets due to the scarcity of buffers in the networking hardware. This thesis provides an analysis of TCP/IP performance in data acquisition networks and presents a novel approach to incast congestion in these networks based on software-based …
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Design and analysis of a scalable terabit multicast packet switch : architecture and scheduling algorithms
… using link sharing and dual round robin rings. Packet forwarding is based on link reservation. We propose a queue occupancy based dynamic link reservation (QOBDLR) algorithm which can adapt to the input traffic to provide a fast and fair link resource allocation. QOBDLR algorithm is a …
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Fundamental Analyses of Collaborative and Noncollaborative Positioning
… to enable location-aided routing and geodesic packet forwarding. In WSNs, whose applications include environmental monitoring (e.g., for precision agriculture) and asset tracking in warehouses, not only is location information useful for the self-organization of the network, but in addition, …
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MicroCuckoo Hash Engine for High-Speed IP Lookup
… in the number of routers. Routers implement the packet classification methodology by determining the flow of the packet, based on various rule checking mechanisms that are performed on the packet headers. However, the memory components like TCAMs used by these various rules are very expensive and …
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Modelling, analysis and design of MAC and routing protocols for wireless body area sensor networks.
… also provides intelligent routing metrics for packet forwarding mechanisms while considering the integration of WBASNs with the Internet of Things (IoTs). First, we present the numerical modeling of the slotted Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) for the IEEE …
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