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 21 for “"circuit-switched"”.
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Circuit-switched multicomputers and heuristic load placement
In this thesis, we examine two areas germane to ensemble, or multicomputer, systems: communication between individual computers and the placement of the individual components of a parallel program in the ensemble. These topics are related. Programs that execute on ensemble systems must be …
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A Flexible Circuit-Switched Communication Network for FPGA-Based SOC Design
… developed. This infrastructure is based on a circuit-switched network architecture. The circuit-switching aspect allows two nodes, or modules, to temporarily establish a direct and dedicated connection for high-throughput data transfer. The network-based topology allows this to occur without …
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Towards All-Optical Circuit-Switched Datacenter Network Architectures with Low Energy and High Performance
… several recent proposals regarding all-optical circuit-switched network core design for sustainable future-generation clouds. Optical circuit-switching (OCS) technologies are the key components that make those proposals fundamentally promising, as OCS is inherently eco-friendly along with the …
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Radio Link Performance of Third Generation (3G) Technologies For Wireless Networks
… allow the transition of the network from circuit switched to packet switched operation (circuit switched operation will still be supported), resulting in increased overall network performance. These new data services require increased bandwidth and data throughput, due to their intrinsic …
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Fault Tolerance and Performance Improvement in Multiprocessor Interconnection Networks (shuffle-Exchange, Redundant-Path Array Processors)
… Performance of the network operating in both circuit switched and packet switched modes is evaluated in detail. Redundant path networks are shown to provide significant tolerance to faults at minimal costs, as well as improvements in performance and very graceful degradation.
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Investigation of a Packet-Switched Inter-System Interface for Land Mobile Radio Systems
… via leased lines and microwave links across circuit-switched networks. With the recent deployment of digital LMR standards such as the Association of Public and Communications Officials (APCO) Project 25 and the Terrestrial Trunked Radio (TETRA), traffic exchange has become more bursty and …
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B2B strategy for network operations
… advent of the Internet has made the traditional circuit-switched telephony no longer efficient and economical, and to a certain extent obsolete. The less expensive and easily maintainable IP-switched networks are in greater demand. Information age has made Ecommerce the process of empowering the …
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ΑΝΑΛΥΣΗ ΚΑΙ ΣΧΕΔΙΑΣΗ ΤΟΥ ΜΗΧΑΝΙΣΜΟΥ ΠΡΟΣΠΕΛΑΣΗΣ ΓΙΑ ΕΝΑ ΟΠΤΙΚΟ ΔΙΚΤΥΟ ΠΟΛΛΑΠΛΩΝΥΠΗΡΕΣΙΩΝ ΣΤΑ 144 ΜΒ/S
… THE PROTOCOL PROVIDESBOUNDED DELAY OF THE PACKET-SWITCHED TRAFFIC AND SMALL BUFFERING MEMORY FOR THE CIRCUIT SWITCHED TRAFFIC, WHICH TOGETHER WITH THE NETWORK BIT RATE AND THE NODE PROCESSING TIME AND CAPACITY SET THE NETWORK EFFICIENCY. THE EXPERIMENTAL RESULTS OF THE IMPLEMENTED ACCESS MECHANISM …
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A Comprehensive Method and System for the Design and Deployment of Wireless Data Networks
… of strong received signal strength and simple circuit-switched channel allocation protocols, modern and emerging wireless data networks are more noise and interference limited and rely on packet-based protocols. A heavier emphasis is needed on predicting and simulating throughput, bit error …
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Optically-Connected Memory: Architectures and Experimental Characterizations
… across the optical network using a packet-switched, circuit-switched, or hybrid packet-and-circuit-switched approach. The novel memory controller is experimentally demonstrated to be compatible with existing processor-memory access protocols, with the memory controller acting as the …
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Performance analysis of augmented shuffle exchange networks
… of the network and the performance in a circuit switched environment, this investigation complements the previous work by examining fie performance of a packet switched network. The reasons for the choice of the architecture that include factors like hardware complexity, cost and …
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High-performance switching architectures for optical networks
… switches, a flexible alternative with respect to circuit-switched optical networks are proposed. In particular solutions based on devices and components that are expected to mature in the near future are proposed, with the aim to limit the employment of complex components. The work presented here …
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Throughput Performance of Wireless Networks
… of wireless networks from the traditional circuit-switched networks which initially support voice calls to packet-switched networks which support data transmission at variable rates. The exibility and eciency of packet-based networks are further enhanced in fourth generation (4G) networks …
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Routing in packet switched computer communication networks
… the optimization of the routing path in packet-switched computer-communication networks. Computer-communication networks over the past decade are outlined. A glossary of some of the terms used throughout this thesis are introduced. A brief description follows of the advantages of packet …
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Security in Packet-Switched Land Mobile Radio Backbone Networks
… (LMR) operators have begun transitioning from circuit-switched to packet-switched backbone networks to handle their future communication needs. Due to the unique demands of packet-switched backbone networks for LMR, it may not be wise to carry over the previously implemented security methods …
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The role of attention-deficit/hyperactivity disorder and parental misperceptions in risk for child physical abuse
… a key enabling technology for the migration of circuit-switched PSTN architectures to packet-based IP networks. However, this migration is successful only if the present problems in IP networks are addressed before deploying VoIP infrastructure on a large scale. One of the important issues that …
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System and Methods for Detecting Unwanted Voice Calls
… a key enabling technology for the migration of circuit-switched PSTN architectures to packet-based IP networks. However, this migration is successful only if the present problems in IP networks are addressed before deploying VoIP infrastructure on a large scale. One of the important issues that …
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A fuzzy logic based approach to quality of service in 802.11b wireless networks
… the bulk of the data transmitted across packet switched networks in the future will be video and audio traffic. In recent years public telecommunications carriers have replaced circuit switched networks with integrated service packet networks that support both multimedia and data. One challenge …
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Assessment of Voice Over IP as a solution for Voice over ADSL
… voice technology instead of the traditional circuit switched voice. Voice over ATM (VoATM) and Voice over IP (VoIP) are the two main alternatives for carrying voice packets over DSL. ATM is currently the preferred technology, since it offers the advantage of ATM's built-in Quality of Service …
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Design and protection algorithms for path level aggregation of traffic in WDM metro optical networks
… is achieved in three steps: (1) configure the circuit in the form of a path or a tree; (2) use optical devices like couplers or splitters to allow multiple transmitters and/or receivers to share the same circuit; and (3) provide an arbitration mechanism to avoid contention among end users of …
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