الفهرس 
LTE OverviewOnly 14 pages are availabe for public view
Abstract
As a new technology for mobile communication, LTE can achieve high
data rates and the high capacity requirements. One of the major challenges
facing any mobile operator in the initial launch of LTE network is to determine the
number of LTE base stations needed to cover a certain area. The effect of radio
propagation must be estimated in order to recover the transmitted information
accurately. Therefore channel estimation is a vital part in the receiver designs of
LTE. Also the effect of different channel models varies between pedestrian and
vehicular mobiles which can affect the type of modulation technique used, hence
affecting the user peak throughput.
In this thesis, a detailed study of standard channel models has been
done. Channel estimation techniques such as Minimum Mean Square Channel
Estimation and Least Square Channel have been evaluated. Different modulation
schemes like QPSK, 16-QAM and 64-QAM are evaluated with reference to
different mobile speeds. A link level simulator based on LTE physical layer
specifications is used in this study using Matlab & Simulink. The outcome of the
simulation is threshold parameters that can be used in the LTE planning tools to
calculate the required new sites for LTE deployment.
Key Words
LTE, downlink, OFDM, channel estimation, Simulink, planning parameters