XDU, Winter 2008 Lecture Notes Chapter 8 Space-Time Coded-Modulation for Multiple Antenna Systems

The advent of multiple-input–multiple-output (MIMO) space-time coded wireless systems has recently emerged as one of the most significant technical breakthroughs in modern communications. The research on MIMO systems, including the study of channel capacity and the design of communication schemes, demonstrates that MIMO systems have a potential to significantly increase spectral efficiency in wireless communications (without the requirement of increasing bandwidth and transmit power). Note: The materials presented in Sections 8.3 and 8.6.3 are based largely on B. Vucetic’s lecture notes. An MIMO system is an arbitrary wireless communication system in which the transmitter as well as the receiver is equipped with multiple antenna elements. A core idea in MIMO systems is space-time signal processing in which time is complemented with the spatial dimension inherent in the use of multiple spatially distributed antennas. MIMO effectivel