TY - JOUR
T1 - Low-PAPR Layered/Enhanced ACO-SCFDM for Optical-Wireless Communications
AU - Zhou, Ji
AU - Wang, Qi
AU - Cheng, Qixiang
AU - Guo, Mengqi
AU - Lu, Yueming
AU - Yang, Aiying
AU - Qiao, Yaojun
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2018/1/15
Y1 - 2018/1/15
N2 - In this letter, we propose layered/enhanced asymmetrically clipped optical single-carrier frequency-division multiplexing (L/E-ACO-SCFDM) for optical-wireless communications. L/E-ACO-SCFDMhas a lower computational complexity and peak-to-average power ratio (PAPR) than L/E-ACO orthogonal frequency-division multiplexing (L/E-ACO-OFDM). The computational complexity of the simplified transmitter in L/EACO-SCFDM with R layers is (2 - 2/2R)O(N), which is lower than the computational complexity of (2 - 2/2R)O(Nlog2N) in L/E-ACO-OFDM. At a complementary cumulative distribution function of 10-3, the PAPR of L/E-ACO-SCFDM is approximately 4.2, 3.4, and 2.7 dB lower than that of L/E-ACO-OFDM for 2, 3, and 4 layers, respectively. The simulation results indicate that L/E-ACO-SCFDM has better performance than L/E-ACOOFDM under the transmitter nonlinearity and multipath fading.
AB - In this letter, we propose layered/enhanced asymmetrically clipped optical single-carrier frequency-division multiplexing (L/E-ACO-SCFDM) for optical-wireless communications. L/E-ACO-SCFDMhas a lower computational complexity and peak-to-average power ratio (PAPR) than L/E-ACO orthogonal frequency-division multiplexing (L/E-ACO-OFDM). The computational complexity of the simplified transmitter in L/EACO-SCFDM with R layers is (2 - 2/2R)O(N), which is lower than the computational complexity of (2 - 2/2R)O(Nlog2N) in L/E-ACO-OFDM. At a complementary cumulative distribution function of 10-3, the PAPR of L/E-ACO-SCFDM is approximately 4.2, 3.4, and 2.7 dB lower than that of L/E-ACO-OFDM for 2, 3, and 4 layers, respectively. The simulation results indicate that L/E-ACO-SCFDM has better performance than L/E-ACOOFDM under the transmitter nonlinearity and multipath fading.
KW - Low PAPR
KW - layered/enhanced ACO-SCFDM
KW - low computational complexity
KW - optical-wireless communications
UR - http://www.scopus.com/inward/record.url?scp=85038388728&partnerID=8YFLogxK
U2 - 10.1109/LPT.2017.2779486
DO - 10.1109/LPT.2017.2779486
M3 - Article
AN - SCOPUS:85038388728
SN - 1041-1135
VL - 30
SP - 165
EP - 168
JO - IEEE Photonics Technology Letters
JF - IEEE Photonics Technology Letters
IS - 2
M1 - 8126832
ER -