TY - JOUR
T1 - Low-Complexity Receiver for HACO-OFDM in Optical Wireless Communications
AU - Zhang, Tian
AU - Sun, Longfei
AU - Zhao, Chenyi
AU - Qiao, Shuang
AU - Ghassemlooy, Zabih
N1 - This work was supported in part by the Excellent Young Talents of Jilin Province under Grant 20190103010JH; in part by the 13th five-year Science and Technology Research Project of Education Department of Jilin Province under Grant JJKH20190277KJ; and in part by the National Natural Science Foundation of China under Grant 11905028.
PY - 2021/3/9
Y1 - 2021/3/9
N2 - In this letter, a low-complexity receiver (Rx) is proposed for hybrid asymmetrically clipped optical orthogonal frequency division multiplexing (HACO-OFDM). Owing to the special time-domain property of HACO-OFDM, overlaid asymmetrically clipped OFDM (ACO-OFDM) and pulse-amplitude-modulated discrete multitoned (PAM-DMT) signals can be distinguished in the time domain to reduce its computational complexity. Besides, the near-optimal optical power allocation is further applied to optimize the proposed system performance. Theoretical analysis and simulation results demonstrate that, the proposed Rx can achieve nearly the same bit error rate (BER) performance as the BER-optimal iterative Rx but with an effective complexity reduction, thus demonstrating its application potential in high-speed optical communication systems.
AB - In this letter, a low-complexity receiver (Rx) is proposed for hybrid asymmetrically clipped optical orthogonal frequency division multiplexing (HACO-OFDM). Owing to the special time-domain property of HACO-OFDM, overlaid asymmetrically clipped OFDM (ACO-OFDM) and pulse-amplitude-modulated discrete multitoned (PAM-DMT) signals can be distinguished in the time domain to reduce its computational complexity. Besides, the near-optimal optical power allocation is further applied to optimize the proposed system performance. Theoretical analysis and simulation results demonstrate that, the proposed Rx can achieve nearly the same bit error rate (BER) performance as the BER-optimal iterative Rx but with an effective complexity reduction, thus demonstrating its application potential in high-speed optical communication systems.
KW - BER
KW - computational complexity
KW - HACO-OFDM
KW - optical power allocation
UR - https://www.scopus.com/pages/publications/85098751192
U2 - 10.1109/LWC.2020.3038181
DO - 10.1109/LWC.2020.3038181
M3 - Article
AN - SCOPUS:85098751192
SN - 2162-2337
VL - 10
SP - 572
EP - 575
JO - IEEE Wireless Communications Letters
JF - IEEE Wireless Communications Letters
IS - 3
M1 - 9260209
ER -