Performance Comparison of PAM, MSK, and GMSK Modulation Schemes

We can perform a comprehensive performance comparison between PAM, MSK, and GMSK modulation schemes. The analysis includes generating power spectral density plots and bit error rate curves for visual comparison. In code implementation, this typically involves: - Generating baseband signals using different modulation techniques (pammod for PAM, mskmod for MSK, gmskmod for GMSK) - Calculating power spectral density using periodogram or pwelch functions with proper windowing - Simulating bit error rates through Monte Carlo methods with awgn channel corruption at various SNR levels Additionally, we can evaluate their performance under different channel conditions, such as high-noise environments. The analysis can also explore how these modulation schemes behave with varying modulation depths (for PAM) and different data rates. Through systematic MATLAB simulations using communication system objects and custom scripts, we can gain complete understanding of these modulation schemes' characteristics and optimal application scenarios, including their spectral efficiency, power efficiency, and robustness to channel impairments.