1ANDREWS J G,BUZZI S,CHOI W,et al.What will 5G be[J].IEEE Journal on Selected Areas in Communications,2014,32(6):1065-1082.
2RAPPAPORT T S,SUN S,MAYZUS R,et al.Millimeter wave mobile communications for 5G cellular:it will work![J].IEEE Access,2013(1):335-349.
3DOAN C H,EMAMI S,SOBEL D A,et al.Design considerations for 60 GHz CMOS radios[J].IEEE Communications Magazine,2004,42(12):132-140.
4SWINDLEHURST A L,AYANOGLU E,HEYDARI P,et al.Millimeter-wave massive MIMO:the next wireless revolution[J].IEEE Communications Magazine,2014,52(9):56-62.
5ELAYACH O,RAJAGOPAL S,ABU-SURRA S,et al.Spatially sparse precoding in millimeter wave MIMO systems[J].IEEE Transactions on Wireless Communications,2014,13(3):1499-1513.
6LEE Y Y,WANG C H,HUANG Y H.A hybrid RF/baseband precoding processor based on parallel-index-selection matrix-inversion-by-pass simultaneous orthogonal matching pursuit for millimeter wave MIMO systems[J].IEEE Transactions on Signal Processing,2015,63(2):305-317.
7RUSU C,MENDEZ-RIAL R,GONZALEZ-PRELCICY N,et al.Low complexity hybrid sparse precoding and combining in millimeter wave MIMO systems[C]//2015 IEEE International Conference on Communications(ICC),June 8-12,2015,London,UK.New Jersey:IEEE Press,2015:1340-1345.
8SOHRABI F,YU W.Hybrid digital and analog beamforming design for large-scale MIMO systems[C]//2015 IEEE International Conference on Acoustics,Speech and Signal Processing(ICASSP),April 19-24,2015,South Brisbane,Australia.New Jersey:IEEE Press,2015:2929-2933.
9KIM C,KIM T,SEOL J Y.Multi-beam transmission diversity with hybrid beam-forming for MIMO-OFDM systems[C]//Globecom Workshops(GC Wkshps),Dec 9-13,2013,Atlanta,USA.New Jersey:IEEE Press,2013:61-65.
10SINGH J,RAMAKRISHNA S.On the feasibility of codebook-based beamforming in millimeter wave systems with multiple antenna arrays[J].IEEE Transactions on Wireless Communications,2015,14(5):2670-2683.
