Performance vs. Spectral Properties For Single-Sideband Continuous Phase Modulation

TL;DR

This paper analyzes the spectral and performance characteristics of single-sideband continuous phase modulation, exploring how modulation parameters influence error rates, bandwidth, and receiver complexity, and proposing optimized tradeoffs.

Contribution

It introduces a detailed analysis of SSB CPM performance, including spectral density and error probability, and proposes multi-objective optimization for improved modulation schemes.

Findings

SSB CPM performance depends on modulation index, pulse length, and width.

Tradeoffs between BER, spectral efficiency, and complexity are achievable.

Compared SSB CPM with GMSK and Raised Cosine CPM, showing potential improvements.

Abstract

This study revokes the performance of continuous phase modulation (CPM) able to generate a single-sideband (SSB) spectrum directly. This signal is analyzed in terms of modulation indices, pulse lengths, and pulse widths, all of which affect error probability, bandwidth, SSB property, and receiver complexity. The error probability performance is based on an approximation of the minimum Euclidean distance. A numerical power spectral density calculation for this particular SSB modulation in terms of modulation index is presented. Reasonable tradeoffs in designing modulation schemes have been proposed using multi-objective optimization to ensure sizable improvements in bit error rate (BER), spectral efficiencies, and complexity without losing the property of being a SSB signal. Performance comparisons are made with known CPM schemes, e.g., Gaussian Minimum Shift Keying (GMSK) and Raised Cosine based CPM (RC)