Essays about: "wcdma communication"

Showing result 1 - 5 of 21 essays containing the words wcdma communication.

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

    University essay from KTH/Kommunikationsteori

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

    Abstract : 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. READ MORE

  3. 2. Researching Integration of ART Test Cases into JCAT

    University essay from Akademin för innovation, design och teknik

    Author : Petter Isberg; Thomas Åkerlund; [2013]
    Keywords : ;

    Abstract : Ericsson AB is a world-leading provider of telecommunications equipment and services to mobile and fixed network operators. Ericsson uses continuous integration testing to ensure that their equipment is top tier market products. READ MORE

  4. 3. Software Test Strategies for the RNC RNH Subsystem

    University essay from KTH/Kommunikationsnät

    Author : Mohammad Hamed Yazdi; [2013]
    Keywords : mobile networks; testing;

    Abstract : This work concerns software testing strategies for the Radio Network Controller (RNC) RadioNetwork Handler (RNH) subsystem at the WCDMA development department at Ericsson AB. Due to the rapid development in the area of radio communication It is crucial to constantly develop and deliver new software components without errors in the code, which has to be tested and proved to work on a regular basis. READ MORE

  5. 4. Highly Integrated Wideband Doherty Power Amplifier

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Author : Raza Hussain; Sundas Sheikh; [2013]
    Keywords : Doherty power amplifier; GaN transistor; power amplifier; wideband power amplifier;

    Abstract : The objective of this thesis project was to design a wide band Doherty Power Amplifier (DPA) using bare die transistors. Different techniques had been applied in this thesis to make a DPA wide band while maintaining its efficiency and power. READ MORE

  6. 5. Linearity Aspects of Dynamic PA Supply-Modulation Systems with Emphasis on Modulator Modeling and non-linearities

    University essay from Avdelningen för elektronik, matematik och naturvetenskap

    Author : Robert Glen Perea Tamayo; [2012]
    Keywords : EER; Envelope tracking; hybrid switching amplifiers; power amplifiers supply modulation;

    Abstract : Modern communication systems operate with high peak-to-average-power ratio (PAPR) over wide bandwidth. Linearity requirements force operation in a low efficient highly linear back-off region. Then increasing efficiency is becoming critical. One of the most promising technologies to accomplish this is using supply modulation, e. READ MORE