Combining LDPC codes, M-QAM modulations, and IFDMA multiple-access to achieve 5G requirements

In this paper we explore the advantage of combining M-QAM modulations, LDPC codes, and IFDMA multi-access techniques in order to increase the capacity of the system, reduce the peak-to-average power ratio (PAPR) and to improve the BER performance. The simulation results show that our proposal provid...

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Bibliographic Details
Main Authors: Ortega-Ortega, Andres Leonardo, Bravo-Torres, Jack Fernando
Format: Conference Proceeding
Language:English
Subjects:
5G mobile communication
Bit error rate
Entropy
LDPC-IFDMA
LUT
Mathematical model
Modulation
Multiple-Access
PAPR
Parity check codes
Peak to average power ratio
Soft Decision
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Summary:In this paper we explore the advantage of combining M-QAM modulations, LDPC codes, and IFDMA multi-access techniques in order to increase the capacity of the system, reduce the peak-to-average power ratio (PAPR) and to improve the BER performance. The simulation results show that our proposal provides better performance, even allowing significant reductions, of about 1 dB, in the PARP of the high-level modulation schemes, such as 64-QAM. In addition, the spectral efficiency and BER, using LDPC codes (FEC), provides a considerable advantage and low complexity respect to traditional systems.
ISSN:2474-9044
DOI:10.1109/CONIELECOMP.2017.7891828