Introduction to Digital Communications (2019 Edition)

[LeeAndro]

English | PDF,EPUB | 2018 (2019 Edition) | 329 Pages | ISBN : 303000547X | 24.17 MB

This book offers students, scientists and eeers an extensive introduction to the theoretical fundamentals of digital communications, covering single input single output (SISO), multiple input multiple output (MIMO), and -variant systems.​

Further, the main content is supplemented by a wealth of representative examples and computer simulations.
The book is divided into three parts, the first of which addresses the principles of wire-line and wireless digital transmission over SISO links. Digital modulation, intersymbol interference, and various detection methods are discussed; models for realistic -variant, wireless channels are introduced; and the equivalent -variant baseband system model is derived.

Since not all readers may be familiar with this topic, Part II is devoted to the theory of linear -variant systems. The generalized convolution is derived and readers are introduced to impulse response, the delay spread function, and system functions in the frequency domain. In addition, randomly chag systems are discussed.

In turn, Part III deals with MIMO systems. It describes MIMO channel models with and without spatial correlation, including the Kronecker model. Both linear and nonlinear MIMO receivers are investigated. The question of how many bits per channel use can be transmitted is answered and maximizing channel capacity is addressed. Principles of space- coding are outlined in order to improve transmission quality and increase data rates. In closing, the book describes multi-user MIMO schemes, which reduce interference when multiple users in the same area transmit their signals in the same slots and frequency bands.



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