TY - GEN
T1 - PAPR approximation of continuous-time WFRFT signals
AU - Wang, Xiaolu
AU - Mei, Lin
AU - Zhang, Naitong
AU - Xie, Wenshu
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2014/1/27
Y1 - 2014/1/27
N2 - Recently an coordinated transmission approach to single carrier and multi-carrier convergence was proposed based on the weighted-type fractional Fourier transform (WFRFT). This hybrid carrier scheme also suffers the high peak to average power ratio (PAPR) since it contains the multi-carrier compo-nent. There is some research on the PAPR of WFRFT signals, whereas most of which only takes the discrete-time signals into consideration. In practice, the PAPR of continuous-time signals concerns us more than that of discrete-time signals. Therefore, this paper investigates the PAPR approximation of continuous-time WFRFT signals based on baseband discrete-time mapped signals. The PAPR approximation method of continuous-time WFRFT signals is proposed and numerical computations are implemented to show that the proposed approach can make discrete-time signal PAPR converges to continuous-time signal PAPR as the interpolation times L increases. Besides, L ≥ 8 is sufficient to approximate the continuous-time PAPR. Particularly, simulation results also indicate that the proposed approximation method can render clipping technique more efficient for continuous-time signal PAPR reduction.
AB - Recently an coordinated transmission approach to single carrier and multi-carrier convergence was proposed based on the weighted-type fractional Fourier transform (WFRFT). This hybrid carrier scheme also suffers the high peak to average power ratio (PAPR) since it contains the multi-carrier compo-nent. There is some research on the PAPR of WFRFT signals, whereas most of which only takes the discrete-time signals into consideration. In practice, the PAPR of continuous-time signals concerns us more than that of discrete-time signals. Therefore, this paper investigates the PAPR approximation of continuous-time WFRFT signals based on baseband discrete-time mapped signals. The PAPR approximation method of continuous-time WFRFT signals is proposed and numerical computations are implemented to show that the proposed approach can make discrete-time signal PAPR converges to continuous-time signal PAPR as the interpolation times L increases. Besides, L ≥ 8 is sufficient to approximate the continuous-time PAPR. Particularly, simulation results also indicate that the proposed approximation method can render clipping technique more efficient for continuous-time signal PAPR reduction.
KW - continuous-time signals
KW - coordinated transmission
KW - discrete-time signals
KW - peak to average power ratio (PAPR)
KW - weighted-type fractional Fourier transform (WFRFT)
UR - https://www.scopus.com/pages/publications/84988304439
U2 - 10.1109/ICCS.2014.7024814
DO - 10.1109/ICCS.2014.7024814
M3 - 会议稿件
AN - SCOPUS:84988304439
T3 - 2014 IEEE International Conference on Communication Systems, IEEE ICCS 2014
SP - 303
EP - 307
BT - 2014 IEEE International Conference on Communication Systems, IEEE ICCS 2014
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 IEEE International Conference on Communication Systems, IEEE ICCS 2014
Y2 - 19 November 2014 through 21 November 2014
ER -