Title :
Exact Sum-Rate Analysis of MIMO Broadcast Channels with Random Unitary Beamforming
Author :
Yang, Hong-Chuan ; Lu, Peng ; Sung, Hyung-Ki ; Ko, Young-Chai
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Victoria, Victoria, BC, Canada
fDate :
11/1/2011 12:00:00 AM
Abstract :
Random unitary beamforming (RUB) is an attractive transmission scheme for MIMO broadcast channels because of its ability to achieve high sum-rate capacity with limited feedback. In this letter, we derive the exact analytical expressions for the ergodic sum rate of MIMO broadcast channels with RUB. The analysis is facilitated by the development of the complete statistical characterization of ordered beam SINRs for a user, which can find their application in many related problems.
Keywords :
MIMO communication; array signal processing; broadcast channels; MIMO broadcast channels; RUB; SINR; ergodic sum rate; exact sum-rate analysis; high sum-rate capacity; random unitary beamforming; Array signal processing; Base stations; Interference; MIMO; Random variables; Signal to noise ratio; Multiuser MIMO; and capacity analysis; finite feedback; multiuser diversity; random beamforming;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2011.062011.100288
