Title :
Space-time precoding with imperfect feedback
Author :
Visotsky, Eugene ; Madhow, Upamanyu
Author_Institution :
Coordinated Sci. Lab., Illinois Univ., Urbana, IL, USA
Abstract :
This paper provides an information-theoretic perspective on the use of transmit antenna arrays when the transmitter has imperfect channel feedback. The gains obtained are found to be substantial, in contrast with the meagre gains due to feedback reported in previous work on single antenna systems
Keywords :
antenna arrays; array signal processing; encoding; feedback; transmitting antennas; imperfect channel feedback; information theory; space-time precoding; transmit antenna arrays; Antenna arrays; Antenna feeds; Array signal processing; Constraint optimization; Feedback; Gaussian noise; Mutual information; Receiving antennas; Transmitters; Transmitting antennas;
Conference_Titel :
Information Theory, 2000. Proceedings. IEEE International Symposium on
Conference_Location :
Sorrento
Print_ISBN :
0-7803-5857-0
DOI :
10.1109/ISIT.2000.866610
