Performance of antenna array transmission techniquesfor CDMA
Gunther Auer, J.S. Thompson, P.M. Grant · Electronics Letters · 1997
The authors describe and compare techniques which estimate the reverse link channel to set up beamformer weights for antenna array transmission in a code division multiple access (CDMA) system using frequency division duplex (FDD). The results show that a single transmission is more efficient than splitting the power between multiple transmissions, but the algorithms degrade when the angle spread is wide.