Sökning: "Real-Time Communications"

Visar resultat 11 - 15 av 61 avhandlingar innehållade orden Real-Time Communications.

  1. 11. Predictable and Scalable Medium Access Control for Vehicular Ad Hoc Networks

    Författare :Katrin Sjöberg Bilstrup; Erik G. Ström; Elisabeth Uhlemann; Maria Kihl; Högskolan i Halmstad; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CSMA; self-organizing TDMA; STDMA; medium access control; MAC; vehicular ad hoc networks; VANET; vehicle-to-vehicle communications; V2V; V2X; IEEE 802.11p; WAVE; DSRC; ETSI ITS-G5; ISO CALM M5; real-time communications; scalability; traffic safety; cooperative system; Datatransmission; Datatransmission;

    Sammanfattning : This licentiate thesis work investigates two medium access control (MAC) methods, when used in traffic safety applications over vehicular ad hoc networks (VANETs). The MAC methods are carrier sense multiple access (CSMA), as specified by the leading standard for VANETs IEEE 802. LÄS MER

  3. 12. Medium access control for vehicular ad hoc networks

    Författare :Katrin Sjöberg; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; vehicle-to-vehicle communications; SOTDMA; self-organizing TDMA; cooperative system; C-ITS; V2V; ETSI ITS-G5; traffic safety; ISO CALM M5; STDMA; VANET; IEEE 802.11p; V2X; MAC; CSMA; cooperative ITS; medium access control; WAVE; DSRC; vehicular ad hoc networks; scalability; real-time communications;

    Sammanfattning : Cooperative intelligent transport systems (C-ITS), where vehicles cooperate by exchanging messages wirelessly to avoid, for example, hazardous road traffic situations, receive a great deal of attention throughout the world currently. Many C-ITS applications will utilize the wireless communication technology IEEE 802. LÄS MER

  4. 13. Quality Assurance in Radiotherapy - Development and evaluation of new tools for improved patient safety

    Författare :Fredrik Nordström; Malmö Medicinsk strålningsfysik; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; monitor unit verification; in vivo dosimetry; real-time verification; gel dosimetry; 4D dosimetry; IMRT; VMAT; data integrity; radiotherapy; Quality assurance;

    Sammanfattning : Preparation for radiotherapy is a complex procedure that involves many different technologies and groups of professionals. The rapid development and introduction of new technologies throughout the last decade have made it possible to deliver highly conformal, individually-shaped dose distributions with high accuracy. LÄS MER

  5. 14. Resource, Data and Application Management for Cloud Federations and Multi-Clouds

    Författare :Vamis Xhagjika; Leandro Navarro Moldes; Vladimir Vlassov; Gregory Chockler; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Multi-Cloud; Geo-Distribution; Live Streaming; Locality optimisation; Multicast; Multi-Cloud Overlay; Cloud Federation; Web Real-time Communications; WebRTC-RTCWEB; Media Quality; Computer Science; Datalogi;

    Sammanfattning : Distributed Real-Time Media Processing refers to classes of highly distributed, delay no-tolerant applications that account for the majority of the data traffic generated in the world today. Real-Time audio/video conferencing and live content streaming are of particular research interests as technology forecasts predict video traffic surpassing every other type of data traffic in the world in the near future. LÄS MER

  7. 15. A study of wireless communications with reinforcement learning

    Författare :Wanlu Lei; Ming Xiao; Chenguang Lu; Mikael Skoglund; Geoffrey Ye Li; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Reinforcement learning; wireless communications; decentralized learning; beam tracking; machine learning; Förstärkningsinlärning; trådlös kommunikation; decentrali- serad inlärning; strålspårning i mmvåg; maskininlärning; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning :  The explosive proliferation of mobile users and wireless data traffic in recent years pose imminent challenges upon wireless system design. The trendfor wireless communications becoming more complicated, decentralized andintelligent is inevitable. LÄS MER