Differential Chaos Shift Keying (DCSK) Implementation with Bit Error Rate Analysis

This research focuses on implementing Differential Chaos Shift Keying (DCSK) technology and investigating its delayed coherent demodulation method. The implementation involves generating chaotic signals using mathematical models like the logistic map or Chen system, where code implementation typically includes parameter initialization and iterative chaotic sequence generation. The delayed coherent demodulation algorithm compares the received signal with its delayed version through correlation operations, which can be implemented using cross-correlation functions in signal processing libraries. Based on this foundation, we calculated the bit error rate (BER) curve for DCSK technology and compared it with the BER curve of Binary Phase Shift Keying (BPSK) technology. The BER calculation involves Monte Carlo simulations where the code implementation includes adding Gaussian noise to the transmitted signal at different SNR levels and statistically counting error bits. The comparison methodology typically uses semilogarithmic plots to visualize BER performance across various signal-to-noise ratio conditions. Through these experiments and computational results, we can better understand the performance characteristics of DCSK technology in communication systems, as well as its differences and advantages compared to traditional modulation techniques. The code implementation aspects include chaos signal generation, delay line simulation, correlation detection algorithms, and performance benchmarking against conventional modulation schemes.