Enhanced performance analysis of 10 Gbit/s optical OFDM-RoF transmission links

Recent advances in graphene quantum dot-based optical and electrochemical (bio)analytical sensors

“…These property regulations can be accomplished during or after the synthesis of GQDs. In this context, different top-down and bottom-up synthesis methods such as physical grinding, hydrothermal, electrochemical, incomplete carbonization, thermal pyrolysis, microwave, etc., have been employed for controlling the size, structure, and optical properties of nanomaterials, including GQDs 18,28 . For instance, surface functionalization of GQDs with amine groups has been found to be very advantageous to improve the electronic and optical properties.…”

MIMO‐OFDM‐radio over fiber system incorporating higher‐order space‐time block codes

“…The multicarrier multiplexing (MCM) technique such as orthogonal frequency division multiplexing (OFDM) is one such method in the current wireless communication era, which has secured its place in design of future integrated RoF systems due to its sturdiness to multipath fading and chromatic dispersion with bandwidth-efficient high data rate transmission capability. [4][5][6][7] In a conventional OFDM system, the signals are multiplexed at the transmitter and decoded at the receiver by applying inverse fast Fourier transform (IFFT) and fast Fourier transform (FFT), respectively. [8][9][10][11] Another extensively used technology in modern wireless communication arena is multiple-input multiple-output (MIMO), which exploits either the spatial diversity to enhance the wireless system reliability or the spatial multiplexing to increase wireless channel capacity owing to trade-off among multiplexing gain and diversity gain.…”

“…The multicarrier multiplexing (MCM) technique such as orthogonal frequency division multiplexing (OFDM) is one such method in the current wireless communication era, which has secured its place in design of future integrated RoF systems due to its sturdiness to multipath fading and chromatic dispersion with bandwidth‐efficient high data rate transmission capability . In a conventional OFDM system, the signals are multiplexed at the transmitter and decoded at the receiver by applying inverse fast Fourier transform (IFFT) and fast Fourier transform (FFT), respectively .…”