Results 21 to 30 of about 6,742 (251)
IEEE Access, 2020 Digital radio-over-fibre transmission has been studied extensively as a way of providing seamless last-mile wireless connectivity by carrying digitised radio frequency (RF) services over broadband optical infrastructures.
Wen Li +5 more
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Digital predistortion for RSOAs as external modulators in radio over fiber systems
Optics Express, 2011 Reflective semiconductor optical amplifiers (RSOAs) can be used as external modulators in radio over fiber (RoF) links due to their amplification and modulation characteristics and colorless property. The nonlinear distortion of RSOA, however, limits its dynamic range. In this paper we demonstrate digital predistortion (DPD) linearization techniques to
Zhansheng, Liu +2 more
openaire +2 more sources
Linearization Technologies for Broadband Radio-Over-Fiber Transmission Systems
Photonics, 2014 Linearization technologies that can be used for linearizing RoF transmission are reviewed. Three main linearization methods, i.e. electrical analog linearization, optical linearization, and electrical digital linearization are presented and compared ...
Xiupu Zhang +3 more
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Design Issues of Digital and Analog Chaotic RoF Link Using Chaos Message Masking
IEEE Access, 2019 This work presents the joint use of Radio Over Fiber and optical chaos to investigate the secure ROF link. Merging the two technologies, optical chaos for physical layer communication security and Radio over Fiber creates new design issues which have ...
Danish Ali Mazhar +3 more
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QoS Provisioning Techniques for Future Fiber-Wireless (FiWi) Access Networks
Future Internet, 2010 A plethora of enabling optical and wireless access-metro network technologies have been emerging that can be used to build future-proof bimodal fiber-wireless (FiWi) networks.
Martin Maier, Navid Ghazisaidi
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A Novel Spectral-Efficient Coherent Radio-Over-Fiber Link With Linear Digital-Phase Demodulation
IEEE Photonics Journal, 2020 In this paper, a novel spectral-efficient coherent radio-over-fiber (RoF) link with linear digital phase demodulation is proposed and experimentally demonstrated. At the transmitter, to make an efficient use of the optical power and spectra, an intensity-
Huixing Zhang +5 more
doaj +1 more source
Ultra-Wideband Radio-Over-Optical Fiber Concepts, Technologies and Applications
IEEE Photonics Journal, 2010 We have developed novel ultra-wideband (UWB) radio-over-optical-fiber (UROOF) concepts and technologies for a number of important in-house applications characterized by a high data rate.
M. Ran, B. I. Lembrikov, Y. Ben Ezra
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Machine Learning-Based Linearization Schemes for Radio Over Fiber Systems
IEEE Photonics Journal, 2022 This work proposes a novel machine learning (ML)-based linearization scheme for radio-over-fiber (RoF) systems with external modulation. The proposed approach has the advantage of not requiring new training campaigns in case the Mach-Zehnder modulator ...
Luiz A. M. Pereira +3 more
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IEEE Photonics Journal, 2017 A high-linearity directly-modulated analog photonic link (APL) with simultaneous suppression of the even-order intermodulation distortion, third-order intermodulation distortion (IMD3), and cross-modulation distortion (XMD) is proposed and experimentally
Yao Ye +9 more
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A 5G/Sub-Terahertz Heterogeneous Communication Network
IEEE Access, 2022 In this paper, a heterogeneous communication system capable of delivering 5G/sub-terahertz signal carriers over an arbitrary long fiber and separated transmission links is presented by employing direct detection, multiplexing techniques, and advanced ...
Pouya Torkaman +7 more
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