Capacity Improvement for DVB-NGH with Dual-Polarized MIMO Spatial Multiplexing and Hybrid Beamforming
| Autor: | Trung Tan Le, Trung-Hien Nguyen, Huu Trung Nguyen |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Beamforming
Article Subject Computer science MIMO TK5101-6720 02 engineering and technology Data_CODINGANDINFORMATIONTHEORY 01 natural sciences Channel capacity Digital Video Broadcasting 0202 electrical engineering electronic engineering information engineering Media Technology Electronic engineering Computer Science::Networking and Internet Architecture Electrical and Electronic Engineering Computer Science::Information Theory Communication 010401 analytical chemistry Transmitter Bandwidth (signal processing) ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS 020206 networking & telecommunications 0104 chemical sciences Spatial multiplexing Telecommunication Bit error rate |
| Zdroj: | International Journal of Digital Multimedia Broadcasting, Vol 2020 (2020) |
| ISSN: | 1687-7578 |
| DOI: | 10.1155/2020/9578521 |
| Popis: | Multiple-input multiple-output (MIMO) antenna scheme is an effective technique for future terrestrial broadcasting systems such as digital video broadcasting-next-generation handheld (DVB-NGH) to overcome the limits on information theory of traditional single-antenna wireless communications without any additional bandwidth or increased transmit power. In this paper, we propose a hybrid beamforming scheme for dual-polarized MIMO spatial multiplexing DVB-NGH broadcasting systems. The system of interest makes use of phase shifters and amplitude attenuators for the digital-analog precoder at beamforming stage of the transmitter end to maximize the signal-to-noise ratio to increase the channel capacity of the DVB-NGH systems. At the receiver end, the maximum likelihood (ML) detector is used to evaluate the system performance. We consider the signal-to-interference-and-noise ratio (SINR) and the achievable average capacity for the DVB-NGH MIMO with various FFT sizes, number of transmit antennas, and different modulation schemes. The performance results on bit error rate, channel capacity, and beampatterns show that the proposed hybrid beamforming and dual-polarized MIMO spatial multiplexing schemes provide more robustness against signal interference by beamforming and/or nulling techniques. The simulation results also show that the proposed system achieves higher capacity than the existing MIMO schemes for the DVB-NGH systems. |
| Databáze: | OpenAIRE |
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