Radio over fiber (RoF) technology has been suggested as a cost-effective solution to meet modern ever increasing user bandwidth demands and mobility. A system based on this technology has properties quite different from those of conventional WLAN systems in that every room in a building hosts at least one picocell having its own base station (BS). Thus a challenging problem lies in the medium a...

in this paper, we propose an optical millimetre wave radio-over-fibre (mm-wave rof) system that uses a dual drive mach zehnder modulator (dd-mzm), which is biased at the maximum transmission biasing point, to generate an optical double sideband-suppressed carrier. the input to the dd-mzm are binary phase shift keying (bpsk), quadrature phase shift keying (qpsk), 8-phase shift keying (8-psk) and...

Anovel dual-stage optical frequency comb (OFC) demultiplexer, for use in a photonic millimeter-wave (mmW) generator, is demonstrated. Unlike other demultiplexing techniques, the proposed method features single path both tones used mmW generation, thus eliminating challenges related to mismatch of lengths. In addition, active provides filtering, amplification and data modulation tones, all devic...

This paper experimentally demonstrates an elastic RF-Optical C-RAN based on mm-wave MIMO systems. An RF-Optical SBVT in the CO generates 1-GBd signals which are elastically assigned (in time and frequency) by the C-RAN controller to multiple remote antenna units. Introduction The exponential growths in the Internet traffic have continued impressively from one TB/month in 1990 to ten million TB/...

Silicon photonics is a key-enabling technology leveraging decades of effort and infrastructure the microelectronics CMOS industry resulting in high yield, low cost potential volume manufacturing. Furthermore, due to index contrast platform, very compact, high-complexity photonic integrated circuits can be devised. To benefit from these advantages, high-speed modulators should also compatible wi...

The fifth-generation of mobile network (5G) and beyond requires a radio access (RAN) update in order to cope with the incoming increase wireless data traffic new applications. In this context, we propose an efficient optical-wireless architecture applied non-standalone (NSA) 5G (NR) framework. Several distinct electrical- optical-based fronthaul configurations combining free-space optical (FSO)...

The biggest concern in the use of radio-over-fiber (ROF) links in wireless access is their limited dynamic range due to nonlinear distortion (NLD). In this paper, a higher order adaptive filter based nonlinearity compensation scheme is proposed. Pre-compensation is done for the downlink while post-compensation is done for the uplink to result in asymmetry with respect to complexity. This centra...

Wireless networks using radio over fiber (RoF) technology operating in millimeter-wave bands have been suggested as promising solutions to meet increasing user bandwidth and mobility demands. A system based on this technology has properties quite different from those of conventional WLAN systems in that every room in a building hosts at least one picocell having its own base station (BS). Thus ...

This study proposes a full duplex 60-GHz band radio-over-fiber (RoF) link using a modified tandem single sideband (TSSB) modulation scheme with frequency doubling. Based on the modified TSSB modulation scheme, no dispersion induced fading is observed; high spectral efficiency vector signal can be utilized; and wavelength reuse can also be achieved. Both single carrier 8-QAM and QPSK-OFDM signal...

In this letter, we propose a novel and straightforward scheme for Q-band (33-50GHz) millimeter-wave signal generation enabled by Mach-Zehnder modulator (MZM)-based joint algorithm, which combines probabilistic shaping (PS) precoding technology, to enhance the anti-interference ability of transmission system. Based on proposed scheme, experimentally demonstrate 1.4-Gbaud 46-GHz PS-16-quadrature-...