Title :
A zero-forcing method for downlink in cognitive multiuser MIMO system
Author :
Li, Mingming ; Lin, Jiaru ; Li, Chong ; Zhang, Caihong ; Guo, Li
Author_Institution :
Key Lab. of Universal Wireless Commun., BUPT, Beijing, China
fDate :
Aug. 28 2010-Sept. 3 2010
Abstract :
One precoding algorithm used in the downlink of CR MU-MIMO system is presented. Though interference between CUs is not mitigated completely, co-channel interference to PU is pre-whitened and various performance evaluation results demonstrate that algorithm CR-TR-BD accommodates for more general case and is able to achieve high sum rate throughput than BD only used in CR network.
Keywords :
MIMO communication; cognitive radio; interference (signal); CR MU-MIMO system; CR-TR-BD; co-channel interference; cognitive multiuser MIMO system; precoding algorithm; zero-forcing method; Copper; Downlink; Interference; MIMO; Receiving antennas; Transmitting antennas;
Conference_Titel :
Wireless Information Technology and Systems (ICWITS), 2010 IEEE International Conference on
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-7091-4
DOI :
10.1109/ICWITS.2010.5612272
