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Digital Media - Broadcasting - Digital TV, HDTV, Interactive TV & STB Many countries are switching from analog to digital, as government mandated switch over dates approach. As the developed world moves towards all-digit...
Technology - Data 1- Introduction and Frame Relay Frame Relay predates ATM and is widely used for carrying a mixture of traffic types, including packet- and circuit-switched data, to customer sites an...
Technology - Digital Broadcasting 1 - Trends and Frequencies As a prelude to detailed discussion of the various digital broadcasting technologies, we review the propagation of radio waves, the established analog...
Technology - Infrastructure - Key Concepts The basic principles of analogue audio/video and digital communication systems are discussed. Modulation systems, data compression, radio frequency pr...
Technology - Infrastructure - Last Mile 8 - FTTC, VDSL2 Technical Standards We discuss the frequency plans and technical details of the ITU's promising new G993.2 VDSL2 standard. We discuss ADSL compatibility, Dynamic Spectrum...
Technology - Infrastructure - Last Mile 11 - Free Space Optical Free Space Optical laser links between buildings over short distances provide very high data rates at low costs relative to a fibre link. We discuss t...
Technology - Infrastructure - Long Distance 2 - Fibre Modulation Amplification and 40Gbs This report discusses lasers, modulation techniques and the two major optical amplification techniques: and distributed Raman and Erbium Doped Fibre A...
Technology - Mobile - 2 - 2G - IS-95 CDMA & GSM By the late 1990s, two 2G mobile cellular systems were dominant in areas outside North America: IS-95 and GSM. GSM became the dominant technology and ...
Technology - Mobile - 3 - 2G - GSM SIMs, SMS, CAMEL & HSCSD GSM's innovative Subscriber Identity Module (SIM) streamlined the widespread deployment of mobile telephony, and plays a central role in GSM's securit...
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