Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Fronthaul Based on Pulse-Width Modulation in RSOA WDM PONs With Broadband and Coherent Seeds

Not Accessible

Your library or personal account may give you access

Abstract

To avoid the bandwidth expansion of the optical digital fronthaul, recently it has been demonstrated that pulse-width modulation (PWM) is a viable solution for the analog optical fronthaul, as an alternative to standard radio over fiber. The PWM encodes the analog samples at the transmitter onto the duration of the on–off keyed optical signal, splitting the sampling and quantization of the radio signal between remote radio units (RRUs) and baseband units (BBUs). The PWM optical signal can be transmitted over a wavelength-division multiplexing passive optical network (WDM PON). In this paper we compare the performance of two architectures exploiting reflective semiconductor optical amplifiers externally seeded either by broadband or by coherent lights. The various RRU-to-BBU links are pooled through virtual point-to-point connections at different wavelengths generated by a sliced broadband source or by an array of distributed feedback Bragg (DFB) lasers. In both cases to reduce Rayleigh scattering impairments associated with external seeding, the proposed solution takes advantage of a polarization retracing circuit based on Faraday rotators. We compare the two architectures by evaluating the up-link transmission performance of 100 MHz RF signals over up to 20 km standard single mode fiber employing Long-Term Evolution (LTE) mobile signals with 64-QAM and 256-QAM modulations.

© 2016 Optical Society of America

Full Article  |  PDF Article
More Like This
Utilization Comparison of Small-Cell Accommodation With PON-Based Mobile Fronthaul

Yu Nakayama, Kazuki Maruta, Tatsuya Shimada, Tomoaki Yoshida, Jun Terada, and Akihiro Otaka
J. Opt. Commun. Netw. 8(12) 919-927 (2016)

Digital Mobile Fronthaul Based on Delta–Sigma Modulation for 32 LTE Carrier Aggregation and FBMC Signals

Jing Wang, Zhenhua Yu, Kai Ying, Junwen Zhang, Feng Lu, Mu Xu, Lin Cheng, Xiaoli Ma, and Gee-Kung Chang
J. Opt. Commun. Netw. 9(2) A233-A244 (2017)

Performance Evaluation of Ethernet-Based Mobile Fronthaul and Wireless CoMP in Split-PHY Processing

Kenji Miyamoto, Shigeru Kuwano, Tatsuya Shimizu, Jun Terada, and Akihiro Otaka
J. Opt. Commun. Netw. 9(1) A46-A54 (2017)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (9)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved