Communication Over Multiple Antenna

of the Dissertation Communication Over Multiple Antenna Fading Channels Using Quantized and Erroneous Feedback Information by Siavash Ekbatani Doctor of Philosophy in Electrical and Computer Engineering University of California, Irvine, 2008 Professor Hamid Jafarkhani, Chair We study communication schemes with a quasi-static wireless channel model. It means that over the duration of several symbol transmissions, the fading channel remains constant. Therefore, the receiver is capable of estimating the channel coefficients accurately through some pre-defined training data sequences before the real data communication takes place. Using only the receiver knowledge about the channel, open-loop communication is possible. However, the main question is that if we can improve these schemes using channel information at the transmitter with a reasonable amount of complexity and overhead. In the most efficient class of closed-loop communications, transmitter knowledge of the channel conditions is obtained using a feedback link from the receiver to