Low-latency fiber-millimeter-wave system for future mobile fronthauling

Pham Tien Dat; Atsushi Kanno; Naokatsu Yamamoto; Tetsuya Kawanishi

doi:10.1117/12.2212059

12 February 2016 Low-latency fiber-millimeter-wave system for future mobile fronthauling

Pham Tien Dat; Atsushi Kanno; Naokatsu Yamamoto; Tetsuya Kawanishi

Author Affiliations +

Proceedings Volume 9772, Broadband Access Communication Technologies X; 97720D (2016) https://doi.org/10.1117/12.2212059
Event: SPIE OPTO, 2016, San Francisco, California, United States

Abstract

A seamless combination of fiber and millimeter-wave (MMW) systems can be very attractive for future heterogeneous mobile networks such as 5G because of its flexibility and high bandwidth. Analog mobile signal transmission over seamless fiber-MMW systems is very promising to reduce the latency and the required band-width, and to simplify the systems. However, stable and high-performance seamless systems are indispensable to conserve the quality of the analog signal transmission. In this paper, we present several technologies to develop such seamless fiber-MMW systems. In the downlink direction, a high-performance system can be realized using a high-quality optical MMW signal generator and a self-homodyne MMW signal detector. In the uplink direction, a cascade of radio-on-radio and radio-over-fiber systems using a burst-mode optical amplifier can support bursty radio signal transmission. A full-duplex transmission with negligible interference effects can be realized using frequency multiplexing in the radio link and wavelength-division multiplexing in the optical link. A high-spectral efficiency MMW-over-fiber system using an intermediate frequency-over-fiber system and a high-quality remote delivery of a local oscillator signal is highly desirable to reduce the costs.

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Pham Tien Dat, Pham Tien Dat, Atsushi Kanno, Atsushi Kanno, Naokatsu Yamamoto, Naokatsu Yamamoto, Tetsuya Kawanishi, Tetsuya Kawanishi, } "Low-latency fiber-millimeter-wave system for future mobile fronthauling", Proc. SPIE 9772, Broadband Access Communication Technologies X, 97720D (12 February 2016); doi: 10.1117/12.2212059; https://doi.org/10.1117/12.2212059

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