Microwave Engineering: Land & Space Radiocommunications

PREFACE

To face the tremendous expansion of the telecommunication market, the field of wireless communication has greatly developed in the past 50 years, especially in the domains of line of sight, satellites, and troposcatter. Therefore, the worldwide implementation of digital telecommunication equipment, continuously growing, requires incessantly systems which can provide an increasing capacity for an exploding number of users and creates the emergence of new types of services and new technologies, essentially in the areas of data processing, signal coding, and multiplexing. In addition, increasing link capacity within fixed spectral constraints requires more sophistication in signal processing and electronics at terminals that make more efficient use of the transmission medium by using the minimal radio frequency spectrum that is a shared and finite resource.

As applications have become increasingly sophisticated, more complex models and improved diversity techniques are needed. For instance, multipath propagation for terrestrial links is a fundamental and capacity-limiting problem for spectrally efficient information transmission; the corresponding propagation mechanisms therefore need to be well understood and the resulting channel behavior limitations in its modeling also require ...