Filtered-orthogonal　frequency　division　multiplexing　(F-OFDM)　is　a　promising　candidate　waveform　for　the　fifth　generation　(5G)　wireless　communications　because　of　its　high　flexibility　and　low　out-of-band　emission　(OOBE).　However,　it　suffers　from　dramatic　peak-to-average-power　ratio　(PAPR),　which　is　higher　than　that　of　OFDM　and　results　in　the　power　amplifier　(PA)　not　working　in　the　high-efficiency　region.　We　propose　a　hybrid　PAPR　reduction　scheme　including　precoding,　time-domain　selected　mapping　(TSLM)　and　companding　techniques,　for　F-OFDM　systems　with　independent　component　analysis　(ICA)　based　blind　channel　equalization,　which　can　achieve　significant　PAPR　reduction　over　the　previous　work.　Also,　this　is　the　first　work　to　reduce　PAPR　while　enabling　the　PA　to　work　with　the　highest　possible　efficiency.　The　reciprocal　of　the　hybrid　PAPR　reduction　is　embedded　in　the　ambiguity　elimination　process　of　ICA,　and　therefore　does　not　require　any　dedicated　side　information　from　the　transmitter　or　any　exclusive　signal　processing　at　the　receiver,　leading　to　a　much　higher　spectral　efficiency　(SE)　and　lower　computational　complexity　than　the　previous　work.　The　bit　error　rate　(BER)　performance　of　the　system　with　the　proposed　hybrid　PAPR　reduction　scheme　is　shown　to　be　close　to　the　ideal　case　with　perfect　channel　state　information　(CSI),　while　no　side　information　and　training　sequence　are　required　for　PAPR　reduction　and　channel　estimation,　thanks　to　the　effectiveness　of　the　ICA　based　blind　channel　equalization.　©　2019　IEEE.