Space–Time Codes and their Applications in Future Communication Systems

In this thesis coding schemes for future wireless communication systems are presented:
A new class of Space-Time Codes that consists of two decoupled linear block codes achieves a very high diversity gain in a fading environment. This codes are able to combine this excellent diversity performance with spatial multiplexing to exploit the high capacities of MIMO-channels.
Furthermore a new efficient intersymbol-interference cancellation method has been developed which can be used in a scalable decoder for the new Space-Time Codes. An analysis based on extensive measurements of Indoor Powerline channels shows high channel capacities even using very low transmitting power to meet the German standards. So an efficient channel coding scheme for Powerline channels is presented based on an extension of the new space-time codes that makes it possible to achieve a high frequency diversity gain.