TY - GEN
T1 - Sum-rate analysis of MIMO broadcast channel with random unitary beamforming
AU - Lu, Peng
AU - Yang, Hong Chuan
AU - Ko, Young Chai
PY - 2008
Y1 - 2008
N2 - In this paper, we present the exact sum-rate analysis of the multiuser MIMO system with random unitary beamforming (RUB). Specifically, with the derived statistics of ordered beam signal to interference and noise ratio, we obtain the analytical expression of system sum rate for arbitrary number of users. The effects of system parameters, including the number of users, the number of transmit antennas and the signal to noise ratio (SNR), on the sum rate are examined through numerical methods. Besides, we develop an upper bound for the sum rate, which reveals that the sum rate with RUB benefits mainly from multiuser directional diversity gain when SNR is high.
AB - In this paper, we present the exact sum-rate analysis of the multiuser MIMO system with random unitary beamforming (RUB). Specifically, with the derived statistics of ordered beam signal to interference and noise ratio, we obtain the analytical expression of system sum rate for arbitrary number of users. The effects of system parameters, including the number of users, the number of transmit antennas and the signal to noise ratio (SNR), on the sum rate are examined through numerical methods. Besides, we develop an upper bound for the sum rate, which reveals that the sum rate with RUB benefits mainly from multiuser directional diversity gain when SNR is high.
KW - And wireless communications
KW - MIMO broadcast channel
KW - Multiuser diversity
KW - Random unitary beamforming
KW - Sum-rate analysis
UR - http://www.scopus.com/inward/record.url?scp=51649104292&partnerID=8YFLogxK
U2 - 10.1109/wcnc.2008.99
DO - 10.1109/wcnc.2008.99
M3 - Conference contribution
AN - SCOPUS:51649104292
SN - 9781424419968
T3 - IEEE Wireless Communications and Networking Conference, WCNC
SP - 533
EP - 537
BT - WCNC 2008 - IEEE Wireless Communications and Networking Conference, Conference Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - IEEE Wireless Communications and Networking Conference, WCNC 2008
Y2 - 31 March 2008 through 3 April 2008
ER -