Optimal Power Allocation of GFDM Secondary Links With Power Amplifier Nonlinearity and ACI
作者： Amirhossein Mohammadian , Mina Baghani , Chintha Tellambura
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摘要: We investigate the problem of rate maximization a generalized frequency division multiplexing (GFDM) based secondary user (SU) link operating over spectrum hole where adjacent channel interference (ACI) on two active primary users (PUs) in right and left channels must be below threshold. The SU transmitter has nonlinear power amplifier (PA) distortions. consider zero forcing (ZF) receiver which removes self-generated GFDM. For third-order PA, we derive signal-to-interference-plus noise ratio (SINR) ACI. By using successive convex approximations, develop allocation algorithm to maximize subject ACI limits PUs. Finally, show that proposed improves data GFDM achieves higher than orthogonal (OFDM).
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