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Introduction

 

 

 

1.1 Introduction

Although the real world is analog, digital communication systems have evolved over the years as they have several advantages in reality. There has been an astronomical growth in digital communication systems in the past few decades. The demand for this type of communications has also increased over the years. The telephone networks which were originally used to carry baseband analog voice now support ISDN, LAN and so on. Wireless networking has emerged as its own discipline over the past decade. There are other advancements like Digital Cellular Radio (DCR) which demand an efficient usage of the available radio spectrum.

Digital communication systems are generally more complicated to design and more ...

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