Modern society is definitely more mobile than it was several decades ago. Accompanying the increased mobility is a corresponding craving for greater quantities of information. The increased demand has ...

Index modulation techniques represent a paradigm shift in wireless communications by embedding information not only in conventional amplitude and phase symbols but also in the selection of ...

As an ultra-wideband microwave signal, amplitude shift keying (ASK) can be used in many occasions, such as electronic warfares, wireless communications and modern radar systems. Initially, ASK ...

As the demand for high-speed, energy-efficient optical devices continues to rise, traditional thermo-optic (TO) modulation ...

Hierarchical modulation, also known as layered modulation, is a technique that embeds multiple data streams of differing priority within a single carrier waveform. By allocating distinct amplitude and ...