Adaptive OFDM Beamformer with Constrained Weights for Cognitive Radio. - Xiaohua Lian; Homayoun Nikookar; Leo P. Ligthart; Jianjiang Zhou (VTC Spring, 2009)

Efficient Radio Transmission with Adaptive and Distributed Beamforming for Intelligent WiMAX. - Xiaohua Lian; Homayoun Nikookar; Leo P. Ligthart (Wirel. Pers. Commun., 2011)

Distributed beamforming with close to optimal number of nodes for green wireless sensor networks. - Netsanet M. Tessema; Xiaohua Lian; Homayoun Nikookar (OnlineGreenComm, 2012)

Distributed beamforming with phase-only control for green cognitive radio networks. - Xiaohua Lian; Homayoun Nikookar; Leo P. Ligthart (EURASIP J. Wirel. Commun. Netw., 2012)