Sökning: "W-CDMA"

Visar resultat 1 - 5 av 11 uppsatser innehållade ordet W-CDMA.

  1. 1. Reduction of Crosstalk Distortion in 5G

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Ali Al-Qamaji; Fida Abdalrahman; [2019]
    Nyckelord :Wireless Communication; Power Amplifier; Linearization; Digital predisposition; 5G; Massive MIMO.; Technology and Engineering;

    Sammanfattning : Increasing demand for higher data rates in wireless communication systems has tremendously evolved over the last years. This demand is rapidly increasing with rising in number of wireless devices. LÄS MER

  3. 2. Efficient DPD Coefficient Extraction For Compensating Antenna Crosstalk And Mismatch Effects In Advanced Antenna System

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Himanshu Gaur; Md Zahidul Islam Shahin; [2018]
    Nyckelord :Technology and Engineering;

    Sammanfattning : The demand for high data rates in a wireless communication system has experienced a remarkable growth over the last years. This demand is continually increasing with the growing number of wirelessly connected devices. Thus, there is a continuing hunt for increasing the data transmission rate in wireless communication systems. LÄS MER

  4. 3. Economical Debug Station For debugging 3G modem

    Master-uppsats, Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandling

    Författare :Mohammad Johari Varnoosfaderani; [2015]
    Nyckelord :;

    Sammanfattning : Communication world is growing with an incredible high speed. Every day comes new technologies and give us more access and opportunities in work and life. One of the most important branches is small cells and similar product families. It extends from a simple telegraph codes to 3G W-CDMA and 4G LTE networks. LÄS MER

  5. 4. Live Demonstration of Mismatch Compensation for Time-Interleaved ADCs

    Master-uppsats, Elektroniksystem; Tekniska högskolan

    Författare :Johan Nilsson; Mikael Rothin; [2012]
    Nyckelord :interleaving; analog-to-digital converter; digital communication; FPGA; analog video; carrier recovery; synchronization; RF modulation; SDR14;

    Sammanfattning : The purpose of this thesis is to demonstrate the effects of mismatch errors that occur in time-interleaved analog-to-digital converters (TI-ADC) and how these are compensated for by proprietary methods from Signal Processing Devices Sweden AB. This will be demonstrated by two different implementations, both based on the combined digitizer/generator SDR14. LÄS MER

  7. 5. PERFORMANCE ANALYSIS ON MODULATION TECHNIQUES OF W-CDMA IN MULTIPATH FADING CHANNEL

    Master-uppsats, Blekinge Tekniska Högskola/Avdelningen för signalbehandling

    Författare :AUN ALI TAHIR; FENG ZHAO; [2009]
    Nyckelord :Final Thesis as Part for Master program in Electrical Engineering with Emphasis on Telecommunication;

    Sammanfattning : The transmission from base station to mobile or downlink transmission using M-ary Quadrature Amplitude modulation (QAM) and Quadrature phase shift keying (QPSK) modulation scheme are consider in W-CDMA system. We can analysis the performance of these modulation techniques when the system is subjected to AWGN and multipath Rayleigh fading are consider in the channel. LÄS MER