Wireless communications is a fascinating field with extensive scope. This book primarily focuses on the point-to-point wireless transmission technologies. In this introductory chapter, we first present a brief overview of wireless communications. Then the access of wireless communication medium, the radio spectrum, is discussed, where sample schemes for both multiple access and random access are introduced. After that, we discuss the available duplexing schemes for two-way wireless communication systems. With the point-to-point transmission scenario thus established, the chapter is concluded with an outline of digital wireless transmission technologies.

Chapter Contents:

• 1.1 Overview of wireless communications
• 1.2 Spectrum access
• 1.2.1 Multiple access
• 1.2.2 Random access
• 1.3 Duplexing
• 1.4 Digital wireless transmissions
• 1.5 Further readings
• Problems
• Bibliography

Inspec keywords: radio links; multi-access systems; multiplexing

Other keywords: wireless communication medium; point-to-point wireless transmission technologies; duplexing scheme; two-way wireless communication systems; digital wireless transmission technologies; radio spectrum

Subjects: Radio links and equipment; Multiple access communication; Communication switching