Implementation of SIC-Based Baseband Receiver and Beamforming Design with Power Control for Heterogeneous
Date Issued
2014
Date
2014
Author(s)
Chiang, Wen-Hao
Abstract
Currently, 3GPP LTE Standard is the mainstream of wireless communication system. In order to satisfy the users'' demands of internet and multimedia stream, the high transmission rate and the large capacity are the first priority for the improvement of wireless communication system. In order to increase the capacity, Heterogeneous Network has been consider to be one of the cellular networks for the next generation. However, the large power level difference between the base stations induce a severe inter-cell interference which confines the efficiency of the Heterogeneous Network. In this thesis, we propose a novel idea and algorithm to help the desired signal survive by cancelling the strong interference signal instead through lowering the transmission power with optimized beamforming pattern. We also emulate the environment of the Heterogeneous Network with RF front-end from National Instrument. With hard-ware implementation of 3GPP LTE standard baseband receiver, the field trial experiment will be held through real-time demodulation to validate the effectiveness of the algorithm. The result shows that with the algorithm, the user can still work properly with power-saving transmission strategy under severe inter-cell interference.
Subjects
Heterogeneous Network
power control
beamforming design
interference cancellation
baseband receiver
field trial experiment
real-time demodulation
Type
thesis
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