 The Duyet Vu, Evgeny Glushankov, Kong Kuen Fam
The Bonch-Bruevich Saint Petersburg State University of Telecommunications,
St. Petersburg, 193232, Russian Federation
DOI 10.31854/2307-1303-2025-13-2-69-81
EDN OLWQTV
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Abstract: Problem statement. In modern radio engineering systems, achieving the necessary trade-off between energy and spectral efficiency is considered one of the most pressing tasks. In this context, the application of signal-code constructions through the rational combination of error-control coding methods and multi-position modulation appears to be a promising direction for the joint optimization of energy and spectral efficiency, which underscores the relevance of this research. The purpose of the work: to investigate the energy efficiency of signal-code constructions based on trellis coded modulation and multilevel coded modulation when combined with error-control concatenated codes and turbo codes. The research method is based on computer simulation in the MATLAB environment with the aim of evaluating various options for building signal-code constructions in radio communication systems by comparing the bit error rate as a function of the signal-to-noise ratio. The scientific novelty lies in the development and investigation of the energy efficiency of based on error-control concatenated and turbo codes within the frameworks of trellis and multilevel coded modulation and phase shift keying. Results. The simulation results demonstrate the increased energy efficiency of applying signal-code constructions based on the joint use of concatenated and turbo codes in trellis coded modulation and multilevel coded modulation schemes, compared to traditional approaches where coding and modulation are separated into distinct sequential processes. Theoretical and practical significance: the presented results can be applied in prospective radio communication systems with the aim of increasing energy and spectral efficiency during data transmission over channels with constant parameters and additive white Gaussian noise.
Keywords: signal-code constructions, trellis-coded modulation, multilevel coded modulation, error resilience, concatenated codes, turbo codes, phase shift keying.
Reference for citation
Vu T. D., Glushankov E., Fam K. K. Investigation of the Energy Efficiency of Signal-Code Constructions Based on Concatenated and Turbo Codes for Prospective Radio Communication Systems // Telecom IT. 2025. Vol. 13. Iss. 2. PP. 69‒81 (in Russian). DOI: 10.31854/2307-1303-2025-13-2-69-81. EDN: OLWQTV
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