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UMTS Reference Architecture

Posted by Jeff on Apr 15, 2011 in Wireless Communication Systems

TweetContinuing on with wireless communications related subjects.  The architecture of a UMTS systems is the first thing to begin understanding if you want to undertake an education such as this.  It consists of three distinct components: The User Equipment (UE) The UMTS Terrestrial Radio Access Network (UTRAN) The Core Network (CN) As with any wireless [...]

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Digital Coding Techniques

Posted by Jeff on Apr 6, 2011 in Signal Processing, Wireless Communication Systems

TweetHey!  This article has a simple purpose, to teach you basic functionality and terminology related to modern UMTS-CDMA digital coding techniques.  One swift read of this information-packed kick in the face will leave you trembling at the knees with curiosity for more.  Well, maybe not.  But the first step in the UMTS-CDMA system applies error [...]

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3G Wireless Technologies

Posted by Jeff on Apr 5, 2011 in Signal Processing, Wireless Communication Systems

TweetThere are several different types of 3G wireless technologies that are defined and planned to be up and working today.  There are also several that are on their way.  These are successors of course, to the previous 2G technologies that dominated the airwaves. CDMA2000 CDMA2000 is the successor to IS-95 systems.  CDMA2000 provides a definition [...]

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The Evolution of Wireless Technologies

Posted by Jeff on Mar 29, 2011 in Wireless Communication Systems

TweetCellular systems have come a long way since their introduction in the 1980s.  The evolution progressed from First Generation (1G) systems to Second Generation (2G) systems.  Now, Third Generation (3G) systems are being deployed. 1G systems introduced the cellular concept, in which multiple antenna sites are used to serve an area.  The coverage of a [...]

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