Digital terrestrial broadcasting systems will use the QPSK-OFDM (Orthogonal Frequency Division Modulation) modulation scheme because of its robustness in mobile environments. This report describes an ...

Fundamental to all wireless communications is modulation, the process of impressing the data to be transmitted on the radio carrier. Most wireless transmissions today are digital, and with the limited ...

Eliminating software adjustments in circuits based on digital logic improves robustness and reduces cost for small-production-run series. This circuit is a cost-improved version of classical QPSK ...