Results 161 to 170 of about 4,255 (193)

Solutions for future mobile fronthaul access-network convergence

Optical Fiber Communication Conference, 2016
• Solutions for future mobile fronthaul □ In the short to mid term, how to carry CPRI/OBSAI/ORI is the key. The solutions include IQ-data compression, and fronthaul with WDM. □ In the mid to long term, a new function split is under study. It realizes a packet-based fronthaul, which allows the use of the cost-effective TDM PON technology. □ DSP-assisted
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Bidirectional mobile fronthaul based on wavelength reused MDM

2016 15th International Conference on Optical Communications and Networks (ICOCN), 2016
In this paper, we propose a cost effective wavelength reused mode-division-multiplexing (MDM) system for high speed symmetrical bidirectional mobile fronthaul application. At the base band unit (BBU) pool, one of the spatial modes is used to transmit signal carrier while the others are used for downstream signal channels. At the remote radio unit (RRU)
Yuanxiang Chen, null Juhao Li, null Huanfa Peng, null Paikun Zhu, null Yu Tian, null Zhongying Wu, null Jinglong Zhu, null Dawei Ge, null Peng Zhou, null Ke Liu, null Yongchi Xu, null Jingbiao Chen, null Yongqi He, null Zhangyuan Chen   +13 more
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Multiband radio-over-fiber system for a 5G mobile fronthaul network

Applied Optics, 2021
A multiband radio-over-fiber system for a fifth-generation (5G) mobile communication technology mobile fronthaul network is proposed, which can transmit radio frequency (RF) signals in four different frequency bands of 700 MHz, 1.8 GHz, 3.5 GHz, and 26 GHz with different data rates simultaneously.
Mingfang Li, Muguang Wang, Mengyao Han, Beilei Wu, Qi Ding   +4 more
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DSP-Assisted Channel Aggregation Options for Next-Generation Mobile Fronthauling

2018 20th International Conference on Transparent Optical Networks (ICTON), 2018
In this paper, we perform a performance comparison of two different solutions for next generation mobile fronthauling, both based on digital signal processing (DSP) channel aggregation options, but in the two variants usually indicated as Time Division Multiplexing Access (TDMA) and Frequency Division Multiplexing Access (FDMA).
B. Mengesha, P. Torres-Ferrera, R. Gaudino   +2 more
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Optical fronthaul technologies for next-generation mobile communications

2016 18th International Conference on Transparent Optical Networks (ICTON), 2016
We report on technical challenges associated with the use of directly modulated lasers in the mobile fronthaul networks based on radio-over-fiber (RoF) technology. In particular, the effects of dispersion-induced RF power fading and multi-path interference are investigated through theoretical and experimental analyses for the RoF-based transmission ...
null Byung Gon Kim, Sung Hyun Bae, Hoon Kim, Yun C. Chung   +3 more
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Assessment of fixed mobile converged backhaul and fronthaul networks

2016 18th International Conference on Transparent Optical Networks (ICTON), 2016
To cope with the forecasted traffic increase in mobile networks small cell deployments are considered as a key enabler. Compared with Macro Sites (MS), Small Cells (SC) will be deployed on a larger scale and thus require a more cost effective transport connection than in today's CWDM backhaul networks.
Erik Weis, Dirk Breuer, Sandro Krauss
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Digital-Analog Mobile Fronthaul with Efficient SNR Scaling

Advanced Photonics Congress 2024
We overview the principle of hybrid digital-analog radio-over-fiber technique for high-fidelity and high spectral efficiency mobile fronthaul. The SNR scaling law is theoretically derived and compared with the existing radio-over-fiber techniques.
Yixiao Zhu, Chenbo Zhang, Xiansong Fang, Yicheng Xu, Ziheng Zhang, Fan Zhang, Qunbi Zhuge, Xiaopeng Xie, Weisheng Hu   +8 more
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Next Generation Mobile Fronthaul and Midhaul Architectures [Invited]

Journal of Optical Communications and Networking, 2015
Centralized processing is expected to bring about substantial benefits for wireless networks both on the technical side and on the economic side. While this concept is considered an important part of future radio access network architectures, it is more and more recognized that the current approach to fronthauling by employing the Common Public Radio ...
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Toward 6G: Analog Fronthaul Solutions for Mobile Networks

Optical Fiber Communication Conference (OFC) 2025
This paper explores photonic-based analog fronthaul solutions for 6G, highlighting their effectiveness in meeting the RF requirements of standards, supporting future distributed-MIMO networks, and providing insights into prospective solutions for radios in potential 6G bands.
Rafael Puerta, Tianyu Jiang, Kristaps Rubuls, Dan Li, Mahdieh Joharifar, Armands Ostrovskis, Fabio Pittalà, Markus Gruen, Hadrien Louchet, Anders Djupsjöbacka, Richard Schatz, Toms Salgals, Sandis Spolitis, Vjaceslavs Bobrovs, Oskars Ozolins, Xiaodan Pang   +15 more
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Mobile Fronthaul for next generation radio access networks

2022
A constante procura por melhores serviços de banda larga fixa e móvel é evidente e despoleta uma necessidade de desenvolver novas redes móveis com requisitos mais exigentes. As redes 5G e 6G já preveem a utilização de sistemas de comunicação heterogéneos que suportem novas aplicações e tecnologias wireless.
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