The various stages in the development of the system are encoding using conventional encoders (trellis diagram or state transition diagram methods), design of an OFDM transmission system, study the ...

The FAA has begun flight testing a new digital communications system that it calls Nexcom, for “next-generation communications.” The modernized system will eventually require that the entire U.S. GA ...

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 ...