Wireless Multimedia Communications: A Tele-Presence Paradigm for Anyone, Anywhere, Anytime - or the Dawn of the" World Wide Wait" ?

Date: Friday, October 19

Presented by:

Lajos Hanzo, University of Southampton

Abstract

Since Marconi demonstrated the feasibility of radio transmissions, researchers have endeavoured to fulfill the dream of flawless wireless multimedia telecommunications, creating the impression of ``tele-presence ' ' - at the touch of a dialling key and with the aid of the future wireless solutions to be discussed in the lecture.

Commencing with a light-hearted historical perspective on the generations of wireless systems, Shannon ' s lessons are contrasted with the practical constraints imposed on state-of-the-art multimedia communicators. In the face of adverse wireless channel conditions it is irrealistic to expect that any fixed-mode wireless system remains capable of maintaining a constant quality-of-service. This motivates the design of cutting-edge near-instantaneously adaptive modulation and coding aided transceivers, which offer capabilities beyond those of the operational systems. These advances are further augmented by quantifying the benefits of sophisticated adaptive antenna arrays, before demonstrating their system-level benefits - for example their ability to circumvent the threat of the ``world wide wait ' ' in the emerging wireless Internet..