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Simulink Based LTE System Simulator
Master of Science Thesis in Communication Engineering
XUAN GUO & PENGTAO SONG
Department of Signals and Systems
CHALMERS UNIVERSITY OF TECHNOLOGY
Göteborg, Sweden, 2010
Report No. EX097/2010
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(This page is only for printing)
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Simulink Based LTE System Simulator
Author
Xuan Guo and Pengtao Song
Master of Science thesis at Chalmers University
of Technology in collaboration with Antenna
Research Center, Ericsson Research.
Supervisor
Mats Viberg, Chalmers
Henrik Sahlin, Ericsson AB
Patrik Persson, Ericsson AB
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Simulink Based LTE System Simulator
XUAN GUO & PENGTAO SONG
© XUAN GUO & PENGTAO SONG, 2010.
Technical report no EX097/2010
Department of Signals and Systems
Chalmers University of Technology
SE-412 96 Göteborg
Sweden
Telephone: + 46 (0)31-772 1000
Cover:
A 3D graph showing the structure of the LTE
dowlink simulator, according to Figure 4.1.
Göteborg, Sweden, 2010
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Abstract
A MATLAB Simulink-based simulator for an
antenna system has been developed at
Chalmers, followed by the implementation of a
WCDMA system in it. Naturally, 3GPP Long-
Term Evolution (LTE) as a new standard for
communication system should be considered
next. Therefore, a Simulink-based LTE system
simulator connected to the existing antenna
blocks and WINNER channel is presented in this
master thesis. It focuses on the implementation
of the LTE downlink in the physical layer. In the
transmitter, functionalities like Turbo coding,
rate-matching, MIMO (up to 4×4) and OFDM are
realized. In the receiver, ideal and non-ideal
receiver algorithms are supported, including two
types of channel estimation, linear equalizer,
Turbo decoding, PMI calculation and HARQ
functionality. The results, such as raw bit error
rate, bit error rate, block error rate and user
throughput are studied in the simulator for
different system settings.
Keywords: Simulator, LTE, downlink, Simulink,
WINNER, antenna, MIMO, Turbo coding,
channel estimation, PMI