Interference Mitigation by Practical Transmit Beamforming Methods in Closed Femtocells.
Mika Juhani HussoJyri HämäläinenRiku JänttiJuan LiEdward MutafungwaRisto WichmanZhong ZhengAlexander M. WyglinskiPublished in: EURASIP J. Wirel. Commun. Netw. (2010)