Inter-antenna and subblock shifting and inversion for peak-to-average power ratio reductio

Inter-antenna and subblock shifting and inversion for peak-to-average power ratio reduction in

MIMO-OFDM systems

WANG Yi ;TAO Xiao-feng

【期刊名称】《中国邮电高校学报（英文版）》 【年(卷),期】2007(014)004

【摘要】In this article, an inter-antenna inter-subblock shifting and inversion (IASSI) scheme is proposed to reduce the peak-to-average power ratio (PAPR) in multi-input multi- output orthogonal frequency division multiplexing (MIMO- OFDM) systems. It exploits multiple antennas and subblocks to provide additional degrees of freedom to benefit the system. To reduce the implementation complexity of the proposed scheme, two simple suboptimal schemes are further presented based on the minimum current maximum criterion; one adopts sequential search and the other employs random binary grouping. The simulation results exhibit the effectiveness of these proposed schemes. 【总页数】5页(41-45)

【关键词】peak-to-average power ratio;inter-antenna and subblock shifting and inversion;sequential search;random binary grouping;multi-input multi-output;orthogonal frequency division multiplexing 【作者】WANG Yi ;TAO Xiao-feng