Software-Defined Radio Implementation and Performance Evaluation of Frequency-Modulated Antipodal Chaos Shift Keying Communication System

This paper is devoted to software-defined radio (SDR) implementation of frequency modulated antipodal chaos shift keying (FM-ACSK) transceiver and presents results prototype testing in real conditions. novel perspective class spread-spectrum communication systems employs chaotic synchronization for the acquisition tracking analog spreading code does not need resource-demanding cross-correlation. The main motivation given work assess performance FM-ACSK conditions demonstrate that can be considered an efficient demodulation method. focuses on real-time aspects modulation-demodulation algorithms, forward error correction (FEC) symbol timing approach MATLAB Simulink. presented assessed via extensive testing, which includes measurement bit ratio (BER) single-user multi-user scenarios, estimation carrier offset (CFO) impact image transmission over-the-air between two independent sites comparison with classical hopping spread spectrum (FHSS). shows demonstrates good low signal-to-noise (SNR) terms BER significantly outperforms classic modulation schemes employ correlation-based detection.