what is the purpose of cyclic code shift keying?
Cyclic Code-Shift Keying (CCSK) [1], also known as Code-Phase-Shift Keying (CPSK), is an L-ary Direct-Sequence Spread-Spectrum (DSSS) technique that improves the spectral efï¬ciency of spread-spectrum systems. CCSK modulation is characterized by the simplicity of the mapping and demapping operations.This propertyjustiï¬es the use of CCSK modulation