Search for dissertations about: "IP networks"

Showing result 1 - 5 of 91 swedish dissertations containing the words IP networks.

  1. 1. IP telephony : Mobility and security

    Author : Jon-Olov Vatn; Björn Pehrson; William Arbaugh; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Telekommunikation; Telekommunikation; Telecommunication; Telekommunikation;

    Abstract : With the introduction of IP based telephony services, the Internet has started to challenge the traditional PSTN networks as an infrastructure for providing real-time interactive services. This upcoming paradigm shift is not only driven by the desire to provide cost efficient solutions, but by basing the communication on IP we expect that the end-users will experience a greater set of attractive services over a single connection compared to what is provided by a PSTN today. READ MORE

  2. 2. Enabling Multimedia Services over Wireless Multi-Hop Networks

    Author : Marcel Cavalcanti de Castro; Andreas Kassler; Torsten Braun; Karlstads universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Wireless Multi-hop Networks; Mobile Ad-hoc Networks; Wireless Mesh Networks; Voice over IP; Session Initiation Protocol; Peer-to-Peer Overlay Networks; Computer science; Datavetenskap; Datavetenskap; Computer Science;

    Abstract : With the constant development of wireless technologies, the usageof wireless devices tends to increase even more in the future.Wireless multi-hop networks (WMNs) have emerged as a keytechnology to numerous potential scenarios, ranging from disasterrecovery to wireless broadband internet access. READ MORE

  3. 3. Wireless Multi Hop Access Networks and Protocols

    Author : Anders Nilsson Plymoth; Institutionen för elektro- och informationsteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Multi Hop Access; Wireless Networks; Mobile IP; Performance Evaluation; Medium Access Control; Routing; Wireless Ad hoc Networks;

    Abstract : As more and more applications and services in our society now depend on the Internet, it is important that dynamically deployed wireless multi hop networks are able to gain access to the Internet and other infrastructure networks and services. This thesis proposes and evaluates solutions for providing multi hop Internet Access. READ MORE

  4. 4. Layered optical networks : implications to switching and transmission

    Author : Stefan Larsson; KTH; []
    Keywords : ;

    Abstract : With the aim of supporting and enhancing high-capacitycommunication networks, such as telephony, Internet and others,this work has investigated:· transmission gains withtime-slotted optical communication, · performance ofoptical add/drop multiplexers (OADMs) and optical crossconnects(OXCs), · OXC networks serving Internet Protocol(IP)-routers, · packet hop reductions in IP-controlledoptical networks, · a simple optical neighbour discoverymethod, · economics of complementing a client network withan optical express layer.Time-slotting was shown to enable bi-directionaltransmission at the same frequency and multiwavelengthtransmission over dispersion-shifted fibre. READ MORE

  5. 5. Overlay Multicast Networks : Elements, Architectures and Performance

    Author : Doru Constantinescu; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : Today, the telecommunication industry is undergoing two important developments with implications on future architectural solutions. These are the irreversible move towards Internet Protocol (IP)-based networking and the deployment of broadband access. READ MORE