Wireless Communications & Networking

CHAPTER 1 An Overview of Wireless Systems

1.1 Introduction

The cellular system employs a different design approach than most commercial radio and television systems use [1, 2]. Radio and television systems typically operate at maximum power and with the tallest antennas allowed by the regulatory agency of the country. In the cellular system, the service area is divided into cells. A transmitter is designed to serve an individual cell. The system seeks to make efficient use of available channels by using low-power transmitters to allow frequency reuse at much smaller distances. Maximizing the number of times each channel can be reused in a given geographic area is the key to an efficient cellular system design.

During the past three decades, ...