October 2012
Intermediate to advanced
656 pages
17h 24m
English
Wireless communications technology has grown tremendously in the past few years. The first generation (1G) analog cellular systems like Advanced Mobile Phone Systems (AMPS), Total Access Communication Systems (TACS) etc. supported only voice communication with some roaming limitations. The second generation (2G) digital cellular systems promised higher capacity, national and international roaming and better speech quality than analog cellular systems with Enhanced Full Rate (EFR) and Adaptive Multi-Rate (AMR) codec. The two popularly deployed second generation (2G) cellular systems are GSM (Groupe Special Mobile later commonly known as ...
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