Abstract
This Letter proposes a new scheme for optimizing a direct current (DC) component to enable both the frequency offset estimation and system performance improvement by controlling the IQ modulator to adjust the DC component in a photonics-assisted OFDM MMW system. Compared with the traditional method, a large DC component is used as the pilot frequency for frequency offset estimation. When a small DC component is used, the system performance is better. A 3 Gbaud 16QAM OFDM signal is delivered over 70 m wireless, enabling a 3.5 dB sensitivity improvement at the bit error rate threshold of ${{1\times 10}^{- 2}}$ in the E-band.
© 2021 Optical Society of America
Full Article | PDF ArticleMore Like This
Junting Shi, Bohan Sang, Wen Zhou, Li Zhao, Junjie Ding, and Jianjun Yu
Opt. Lett. 48(3) 602-605 (2023)
Yaoqiang Xiao, Sitao Wang, Zhiyi Wang, Linrong Jiang, and Jing He
Opt. Lett. 48(11) 2989-2992 (2023)
Yanfu Yang, Qian Xiang, Tianjian Zuo, Tingting Zhang, Qun Zhang, Lei Liu, Sen Zhang, and Yong Yao
Opt. Lett. 46(18) 4606-4609 (2021)