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Peak-to-average power ratio reduction in alamouti multi-input-multi-output orthogonal frequency division multiplexing systems without side information using phase offset based-partial transmit sequence scheme

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4 Author(s)
Tao Jiang ; Dept. of Electron. & Inf. Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China ; Chunxing Ni ; Lili Guan ; Qi Qi

In this study, a novel phase offset-based partial transmit sequence (PTS) scheme is proposed to reduce the peak-to-average power ratio (PAPR) in Alamouti coded multi-input-multi-output orthogonal frequency division multiplexing systems, and its key idea is that different phase rotation sequences are multiplied by their corresponding phase offsets at the transmitter. Moreover, a minimum Euclidean distance decoder is proposed to recover the phase rotation sequences at the receiver. The theoretical analysis and simulation results show that the proposed PTS scheme could offer good performances of both the bit error rate and the PAPR reduction without transmitting the side information, resulting in the increase of the data rate.

Published in:

Communications, IET  (Volume:8 ,  Issue: 5 )