Diverse well describes the myriad digital modulation schemes used in modern voice and data communications. The alphabet soup of terminology extends well beyond the familiar QAM and GMSK fundamentals ...
Beginning from an existing GSM circuit-switched voice base system network, there are two hardware upgrades in the base system for GPRS and EDGE. The first is a modification of the air (or Um) ...
Unless you design EDGE or 3G/UMTS cell phone handsets, you may not have heard of polar modulation. As you know, there are only a few basic types of modulation, but they have been used in a variety of ...