dddThe cellular industry is dominated by two technologies - Global System for Mobile Communication (GSM) and Code Division Multiple Access (CDMA). This note gives an overview of the two different technologies. The note starts with the history of GSM and goes on to describe the GSM architecture and the GSM family. It also provides information on the services provided by GSM and the working of GSM. The note also takes a look at the history of CDMA and its commercial development. It then does a comparative study of the two technologies and discusses their advantages and disadvantages.

INTRODUCTION INTRODUCTION
The world's first cellular networks introduced in the early 1990s, used analog2 radio transmission technologies. Within a few years, millions of subscribers signed up for service provided by the cellular networks, and demanded more and more airtime3. As a result, dropped calls and network busy signals became common in many areas.
To accommodate more calls within the......

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Title: Eee
Approximate Word Count: 605
Approximate Pages: 3 (250 words per double-spaced page)

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