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Journal article

Multigigabit W-Band (75–110 GHz) Bidirectional Hybrid Fiber-Wireless Systems in Access Networks

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Department of Photonics Engineering, Technical University of Denmark1

Metro-Access and Short Range Systems, Department of Photonics Engineering, Technical University of Denmark2

We experimentally demonstrate multigigabit capacity bidirectional hybrid fiber-wireless systems with RF carrier frequencies at the W-band (75-110 GHz) that enables the seamless convergence between wireless and fiber-optic data transmission systems in access networks. In this study, we evaluate the transmission performances in two scenarios: a fiber-wireless access link that directly provide high-speed connections to wireless end users, and a fiber-wireless-fiber signal relay where a high capacity wireless link can be used to bridge two access fiber spans over physical obstacles.

In both scenarios, we compare the transmission performances in terms of achievable wireless distances with and without using a high-frequency electrical power amplifier at the wireless transmitter. A downlink 16-Gbit/s QPSK signal and an uplink 1.25-Gbit/s ASK signal transmission over the two implementations are experimentally evaluated in terms of bit-error-rate (BER) performance.

Results show that the use of the power amplifier can extend the wireless distance from ~1 m to over 15 m in an indoor environment with BER performance within the 7% FEC threshold.

Language: English
Publisher: IEEE
Year: 2014
Pages: 4585-4592
ISSN: 15582213 and 07338724
Types: Journal article
DOI: 10.1109/JLT.2014.2361957
ORCIDs: Vegas Olmos, Juan José and Tafur Monroy, Idelfonso

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