Essays about: "qam"

Showing result 21 - 25 of 36 essays containing the word qam.

  1. 21. Live Demonstration of Mismatch Compensation for Time-Interleaved ADCs

    University essay from Elektroniksystem; Tekniska högskolan

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

    Abstract : 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. READ MORE

  3. 22. Analysis of LTE Radio Frame by eliminating Cyclic Prefix in OFDM and comparison of QAM and Offset-QAM

    University essay from Institutionen för datavetenskap, fysik och matematik, DFM

    Author : Vinodhkumar Selvakumar; Samuel Nemalladinne; Premkumar Arumugam; [2012]
    Keywords : OFDM; LTE; OQAM; QAM; FBMC; FIlter Bank Multicarriers;

    Abstract : Spectral efficiency is the key factor for the development of future wireless communications. Orthogonal Frequency Division Multiple Access (OFDMA) is the multiple access technology used at physical layer of latest wireless communication technologies. READ MORE

  4. 23. Joint Radar and Communication Application for Trac Safety System

    University essay from KTH/Kommunikationsteori

    Author : Raul Quijada; [2011]
    Keywords : ;

    Abstract : The concept of “smart” cars or intelligent vehicles is presented as one of the most promising solutions to reduce the high mortality rate that occurs on the world’s roads nowadays. Besides, the recent publication of standards as the European Standard for Intelligent Transportation System  (ITS) or the international standard IEEE 802. READ MORE

  5. 24. Efficient Modelling and Performance Analysis of Wideband Communication Receivers

    University essay from Signaler och System

    Author : Andreas Eriksson; [2011]
    Keywords : performance analysis; ultra wideband; monte carlo method;

    Abstract : This thesis deals with Symbol Error Rate (SER)-simulation of wireless communications and its application into throughput analysis of UltraWideband (UWB) systems. The SERs will be simulated in C++ using the Monte Carlo method and when some are calculated, the rest will be estimated using a novel extrapolation method. READ MORE

  6. 25. The Performance Evaluation of OFDM Based WLAN (IEEE 802.11a and 802.11g)

    University essay from Blekinge Tekniska Högskola/Sektionen för datavetenskap och kommunikation

    Author : Kamil Mohiuddin Shaikh; [2010]
    Keywords : OFDM; IEEE 802.11a and IEEE 802.11g;

    Abstract : ABSTRACT In the past decade there has been a steady growth in development and implementation of wireless Local Area Networks and emerged as in the largest sectors of the telecommunication industry. Wireless local area network (WLANs) provides connectivity, mobility, and much higher performance and achievable data rate. READ MORE