not yet there, we have just tried to touch this field from the perspective of the design engineers in the field, SO that they have some idea of what is to come. A few appendices are also given. These appendices contributed by the experts in the respective fields deal with aspects such as Cellular Network Roll-Out Project Management, High Speed Packet Switched Introduction Data, Digital Video Broadcasting and TETRA Network Planning. I hope that engineers will find these extremely useful for their work. In the end, there is a list of carefully chosen books and papers that I am sure the reader will find useful. I would be very grateful if readers would send in feedback to fcnp@hotmail.com, making any comments/suggestions that might improve the book. Ajay R Mishra (Editor) Cellular Networks Ajay R Mishra 1.1 Introduction The cellular technology evolution has been going on since the late 1950s, though the first commercial systems came into being in the late 1970s and early 1980s. Here is a brief overview of the cellular technologies and the networks that made an impact on the development and the fast evolution of the mobile communications. 1.2 First Generation Cellular Networks Since the late 1970s when the cellular era started, mobile communication has gone through an evolutionary change every decade in terms of technology and usage. Japan took the lead in the development of cellular technology, which resulted in the deployment of the first cellular networks in Tokyo. Within a couple of years Nordic Mobile Telephony (NMT) started cellular operations in Europe. Along with it, systems such as AMPS (Advanced Mobile Phone Service) started in the USA, while TACS (Total Access Communication System) started in the UK. These formed a part of what was called 'First Generation Mobile Systems', which catered for speech services and were based on analogue transmission techniques. The geographical area was divided into small sectors, each called a cell. Hence, the technology came to be known as cellular technology while the phone