Towards Terahertz Communications - Systems Requirements

Abstract

This chapter concentrates on identifying the subsystems and techniques that need to be developed if we are to fully exploit the communications potential of the large bandwidths available to us in the terahertz range. We will pay little attention to current device and component performance, concentrating more on the underlying information and communication theory. The chapter looks at the links between bandwidth, signal-to-noise ratio and the rate at which information can be transmitted before considering the modulation and multiplexing techniques that could be employed.