Sökning: "WCDMA uplink systems"

Hittade 5 uppsatser innehållade orden WCDMA uplink systems.

  1. 1. Performance and Complexity Comparison of Doppler Spread Estimation for WCDMA Systems

    Master-uppsats, KTH/Kommunikationsteori

    Författare :Ziqi Peng; [2014]
    Nyckelord :Doppler spread estimation; WCDMA uplink systems; Rayleigh fading model; Rician fading model; computational complexity.;

    Sammanfattning : In cellular communication systems, the estimation of Doppler spread has a wide range of applications such as handoff, channel assignment scheme, adaptivetransmission, power control, etc. A great quantity of Doppler spread estimation algorithms have been proposed in the literature. LÄS MER

  3. 2. Rise Over Thermal Estimation Algorithm Optimization and Implementation

    Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Författare :Saba Irshad; Purna Chandra Nepal; [2013]
    Nyckelord :Keywords: Enhanced Uplink E-UL ; Rise-over-Thermal RoT ; Thermal noise power floor; Uplink load; scheduling;

    Sammanfattning : The uplink load for the scheduling of Enhanced-Uplink (E-UL) channels determine the achievable data rate for Wideband Code Division Multiple Access (WCDMA) systems, therefore its accurate measurement carries a prime significance. The uplink load also known as Rise-over-Thermal (RoT), which is the quotient of the Received Total Wideband Power (RTWP) and the Thermal Noise Power floor. LÄS MER

  4. 3. Uplink TDMA Potential in WCDMA Systems

    Uppsats för yrkesexamina på avancerad nivå, Institutionen för systemteknik

    Författare :Markus Persson; [2008]
    Nyckelord :3G; UMTS; WCDMA; TDMA; EUL; Enhanced Uplink;

    Sammanfattning : The evolvement of the uplink in the third generation mobile telecommunication system is an ongoing process. The Enhanced Uplink (EUL) concept is being developed to meet the expected need from more advanced services, like video streaming and mobile broadband. LÄS MER

  5. 4. Voice-over-IP over Enhanced Uplink

    Uppsats för yrkesexamina på grundnivå, Institutionen för systemteknik

    Författare :Nils Brännström; [2007]
    Nyckelord :3G; WCDMA; Enhanced Uplink; VoIP;

    Sammanfattning : The traditional voice service in mobile networks is an important service that mobile users expect high quality from. With the convergence of mobile networks towards an all-IP network, an IP-based speech service becomes important which is referred to as Voice-over-IP (VoIP). LÄS MER

  7. 5. Uplink Interference Management of High Bit Rate Users in Evolved WCDMA

    Uppsats för yrkesexamina på grundnivå, Institutionen för systemteknik

    Författare :Samuel Axelsson; [2005]
    Nyckelord :Telekommunikation; 3G; WCDMA; EUL; E-DCH; Telekommunikation;

    Sammanfattning : The WCDMA air interface, used in the third generation mobile communication systems, is currently being evolved to improve the uplink, i.e. the radio links carrying traffic from the mobile user to the fixed network. An enhanced uplink concept is being developed to meet the expected needs from future applications like multimedia and video-streaming. LÄS MER