Hybrid PTS-Clipping Scheme for PAPR Reduction in MIMO-OFDM Systems

摘要

Multi input multi output (MIMO) technique combined with Orthogonal Frequency Division Multiplexing (OFDM) is the proficient air interface for upcoming generations of high data rate and high speed wireless communication. Major disadvantage of systems with multi carrier modulation technique like OFDM is its high peak to average power ratio (PAPR) which outweighs all the potential advantages of the systems with OFDM. In this paper for the reduction of PAPR a hybrid technique which combines partial transmit sequence and clipping method is proposed. Results from simulations confirm that the proposed method provides considerable performance in PAPR reduction as well as maintaining fine overall performance in terms of BER.