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Adaptive modulation requires knowledge of channel state information (CSI) at the receiver by inserting pilot symbols in the transmitted signal. In This paper we focuses on the Adaptive Coded Modulation (ACM) system, where the data symbols and power allocation variable are optimized. The pilot spacing and power allocation are adaptively changed in an optimal way according to the conditions channel...
The combination of Multi-Carrier Code Division Multiple Access (MC-CDMA) with Multiple-Input Multiple-Output (MIMO) is a technology of one of the most promising systems for broadband modern wireless communications. However, MC-CDMA signals have a high peak-to-average power ratio (PAPR), which causes signal distortion because of the use of a high-power amplifier (HPA) in the transmitter. In our work,...
The purpose of this paper is to design and control the load's current of a Matrix Converter (MC) using both Fuzzy-PI and RST controllers in terms of tracking the reference and robustness. RST controllers present a time delay on the system's transient response. This technique is known to offer lower performance when it is used in complex and nonlinear systems. On the other hand, fuzzy-PI control offers...
The technical performance and robustness of the inverters used for connecting the PV modules to the network of electricity distribution are key elements which can have a significant effect on the production of electrical energy and therefore the financial viability of a power system. This work is a contribution to the modeling and control of a new structure for multilevel converters used in photovoltaic...
This work is a study, analysis and implementation of the indirect space vector modulation for three to three phase matrix converter. The input factor is fixed to zero, an over modulation is presented. The algorithm is implemented on dSPACE 1104 with real voltage sensors and an acquisition of the results using control desk and oscilloscope is presented.
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