Sub-carrier SNR estimation at the transmitter for reduced feedback OFDMA. - Patrick Svedman; David Hammarwall; Björn E. Ottersten (EUSIPCO, 2006)

On downlink beamforming with indefinite shaping constraints. - David Hammarwall; Mats Bengtsson; Björn E. Ottersten (IEEE Trans. Signal Process., 2006)

Beamforming and User Selection in SDMA Systems Utilizing Channel Statistics and Instantaneous SNR Feedback. - David Hammarwall; Mats Bengtsson; Björn E. Ottersten (ICASSP (3), 2007)

Ergodic Capacity Achieving Transmit Strategy in MIMO Systems with Statistical and Short-Term Norm CSI. - Eduard A. Jorswieck; David Hammarwall; Björn E. Ottersten (ICASSP (3), 2007)

Resource Allocation in Multi-Antenna Communication Systems with Limited Feedback. - David Hammarwall (2007)

Acquiring Partial CSI for Spatially Selective Transmission by Instantaneous Channel Norm Feedback. - David Hammarwall; Mats Bengtsson; Björn E. Ottersten (IEEE Trans. Signal Process., 2008)

Utilizing the Spatial Information Provided by Channel Norm Feedback in SDMA Systems. - David Hammarwall; Mats Bengtsson; Björn E. Ottersten (IEEE Trans. Signal Process., 2008)

Exploiting quantized channel norm feedback through conditional statistics in arbitrarily correlated MIMO systems. - Emil Björnson; David Hammarwall; Björn E. Ottersten (IEEE Trans. Signal Process., 2009)

MIMO Layer Shifting for LTE-Advanced Uplink. - Chester Sungchung Park; David Hammarwall; George Jöngren (VTC Fall, 2010)

Evolution of uplink MIMO for LTE-advanced. - Chester Sungchung Park; Y.-P. Eric Wang; George Jöngren; David Hammarwall (IEEE Commun. Mag., 2011)