Chapter 24. Other wireless communications systems
Most mobile and cellular systems go through a continuous development of the underlying technology and of the features, services, and performance supported. The direction of development is from the baseline ‘narrowband’ systems of the 1990s supporting mainly voice services to today's ‘wideband’ systems that target a much wider set of services, including broadband wireless data.
The fundamental technologies introduced in the systems to support new and better performing services all fall within the scope of Part II of this book. When the problems to solve are fundamentally the same, the solutions engineered tend to be quite similar. Wideband transmission, higher-order modulation, fast scheduling, ...
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