Avancerad sökning

Hittade 5 avhandlingar som matchar ovanstående sökkriterier.

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

    Författare :Marcel Cavalcanti de Castro; Andreas Kassler; Torsten Braun; Karlstads universitet; []
    Nyckelord :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;

    Sammanfattning : 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. LÄS MER

  3. 2. Autonomic resource management in IEEE 802.11 open access networks

    Författare :Muslim Elkotob; Luleå tekniska universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Distribuerade datorsystem; Mobile and Pervasive Computing;

    Sammanfattning : This work is inspired by the autonomic networking paradigm. It investigates the issue of making network resource management mechanisms in the access part of wireless networks self-aware and self-configuring. LÄS MER

  4. 3. Towards Secure SIP Signalling Service for VoIP applications : Performance-related Attacks and Preventions

    Författare :Ge Zhang; Simone Fischer-Hübner; Costas Lambrinoudakis; Karlstads universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; SIP; VoIP; Security; Computer science; Datavetenskap; Datavetenskap; Computer Science;

    Sammanfattning : Current Voice over IP (VoIP) services are regarded less secure than the traditional public switched telephone network (PSTN). This is due to the fact that VoIP services are frequently deployed in an relatively open environment so that VoIP infrastructures can be easily accessed by potential attackers. LÄS MER

  5. 4. Intracellular signaling in human skeletal muscle following different modes of exercise

    Författare :Henrik Mascher; Eva Blomstrand; Jan Henriksson; Jørgen Jensen; Gymnastik- och idrottshögskolan; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Medicin Teknik; Medicine Technology;

    Sammanfattning : Resistance and endurance exercise when performed regularly will cause specific adaptations in human skeletal muscle. Resistance exercise is known to increase strength and muscle mass while endurance training increases vascularisation and mitochondrial density which results in enhanced oxidative capacity. LÄS MER

  7. 5. A Mobile Agent Based Service Architecture for Internet Telephony

    Författare :Roch H. Glitho; KTH; []
    Nyckelord :service architecture; mobile agent; SIP; H.323; IN; software upgrading; partitioning; multiparty event scheduling;

    Sammanfattning : Internet Telephony defined as real time voice or multimediacommunications over packet switched networks dates back to theearly days of the Internet. ARPA's Network SecureCommunications project had implemented, as early as December1973, an infrastructure for local and transnet real time voicecommunication. Two main sets of standards have emerged: H. LÄS MER