Heath, Robert W., Ph. D.2011-02-212011-02-212017-05-112011-02-212011-02-212017-05-112010-12December 2http://hdl.handle.net/2152/ETD-UT-2010-12-2447textThe use of feedback to provide channel state information to the transmitter can greatly improve the performance of a communication system. However, the amount of information required to characterize a time-varying MIMO channel can exceed the capacity of the feedback channel. This paper surveys research in limited feedback systems, which employ a number of methods to reduce the information and improve performance in multi-antenna communication systems. This paper also presents a new method, Quantized Successor Pre-coding (QSP), that exploits time-correlation to implement spatial multiplexing in a MIMO system using very little feedback. QSP uses an ordered codebook of pre-coders and transmission modes to reduce the feedback to a single bit. Simulations of QSP demonstrate a substantial performance improvement relative to open-loop spatial multiplexing.application/pdfengMIMOLimited feedbackSpatial multiplexingWireless communicationPre-codingthesis2011-02-21