CHAPTER 4
Overview of Cellular Mobile Networks
You think you understand the situation, but what you don’t understand is that the situation just changed.
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4.1 Introduction
It is no secret that the cellular mobile networks have been the fastest-growing segment in the field of telecommunications over the past decade. Over 4.5 billion customers were estimated to use cellular mobile services such as GSM, 3G-GSM, and HSPA technologies in 3Q 2009; those using CDMA2000 and 1xEV-DO technologies exceeded 600 million, bringing the number of world subscribers to over 5 billion. However, what content providers and users have been awaiting for many years has now happened: the rapid migration of the networks to 3G or 3.5G technologies ...
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