TY - GEN
T1 - Reducing PAPR based on constellation mapping & fast algorithm
AU - Su, Yanyong
AU - Wu, Huaming
AU - Xu, Yuanyuan
PY - 2010
Y1 - 2010
N2 - In this paper, we propose a new method of reducing peak-to-average power ratio (PAPR) of orthogonal frequency division multiplexing system (OFDM) based on constellation mapping. In the transmitter, the samples that exceed the maximum allowable range through IFFT are clipped by software. In the receiver, according to the characteristic of different constellation distribution which different modulation systems possess, clipped samples are restored. So, the distortion of signal is diminished and code error rate of system is decreased. According to the characteristic that total energy of OFDM symbol is constant, the fast algorithm that clipped samples are recovered is brought forward. Both theoretical analysis and simulation results show that the novel method can effectively reduce PAPR in the OFDM system, and code error performance of the system is very good. At the same time, its recovery algorithm is simple.
AB - In this paper, we propose a new method of reducing peak-to-average power ratio (PAPR) of orthogonal frequency division multiplexing system (OFDM) based on constellation mapping. In the transmitter, the samples that exceed the maximum allowable range through IFFT are clipped by software. In the receiver, according to the characteristic of different constellation distribution which different modulation systems possess, clipped samples are restored. So, the distortion of signal is diminished and code error rate of system is decreased. According to the characteristic that total energy of OFDM symbol is constant, the fast algorithm that clipped samples are recovered is brought forward. Both theoretical analysis and simulation results show that the novel method can effectively reduce PAPR in the OFDM system, and code error performance of the system is very good. At the same time, its recovery algorithm is simple.
KW - Algorithm
KW - Constellation mapping
KW - Orthogonal frequency division multiplexing
KW - Peak-to-average power ratio
UR - https://www.scopus.com/pages/publications/77957670401
U2 - 10.1109/WCINS.2010.5541921
DO - 10.1109/WCINS.2010.5541921
M3 - 会议稿件
AN - SCOPUS:77957670401
SN - 9781424458516
T3 - Proceedings - 2010 IEEE International Conference on Wireless Communications, Networking and Information Security, WCNIS 2010
SP - 206
EP - 210
BT - Proceedings - 2010 IEEE International Conference on Wireless Communications, Networking and Information Security, WCNIS 2010
T2 - 2010 IEEE International Conference on Wireless Communications, Networking and Information Security, WCNIS 2010
Y2 - 25 June 2010 through 27 June 2010
ER -