A downlink beam steering technique for GSM/DCS1800/PCS1900. - Per Zetterberg; Poul Leth Espensen (PIMRC, 1996)

Algorithm test using measurements from an adaptive antenna array testbed for GSM/UMTS. - Poul Leth Espensen; Per Zetterberg; Preben E. Mogensen; Frank Frederiksen; Kim Olesen; Steen Leth Larsen (PIMRC, 1997)

Performance of Adaptive Antennas in FH-GSM Using Conventional Beamforming. - Preben E. Mogensen; Poul Leth Espensen; Per Zetterberg; Klaus I. Pedersen; Frank Frederiksen (Wirel. Pers. Commun., 2000)