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Proceedings Paper

Enabling technologies for millimeter-wave radio-over-fiber systems in next generation heterogeneous mobile access networks
Author(s): Junwen Zhang; Jianjun Yu; Jing Wang; Mu Xu; Lin Cheng; Feng Lu; Shuyi Shen; Yan Yan; Hyunwoo Cho; Daniel Guidotti; Gee-kung Chang
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Paper Abstract

Fifth-generation (5G) wireless access network promises to support higher access data rate with more than 1,000 times capacity with respect to current long-term evolution (LTE) systems. New radio-access-technologies (RATs) based on higher carrier frequencies to millimeter-wave (MMW) radio-over-fiber, and carrier-aggregation (CA) using multi-band resources are intensively studied to support the high data rate access and effectively use of frequency resources in heterogeneous mobile network (Het-Net). In this paper, we investigate several enabling technologies for MMW RoF systems in 5G Het-Net. Efficient mobile fronthaul (MFH) solutions for 5G centralized radio access network (C-RAN) and beyond are proposed, analyzed and experimentally demonstrated based on the analog scheme. Digital predistortion based on memory polynomial for analog MFH linearization are presented with improved EVM performances and receiver sensitivity. We also propose and experimentally demonstrate a novel inter-/intra- RAT CA scheme for 5G Het- Net. The real-time standard 4G-LTE signal is carrier-aggregated with three broadband 60GHz MMW signals based on proposed optical-domain band-mapping method. RATs based on new waveforms have also been studied here to achieve higher spectral-efficiency (SE) in asynchronous environments. Full-duplex asynchronous quasi-gapless carrier aggregation scheme for MMW ROF inter-/intra-RAT based on the FBMC is also presented with 4G-LTE signals. Compared with OFDM-based signals with large guard-bands, FBMC achieves higher spectral-efficiency with better EVM performance at less received power and smaller guard-bands.

Paper Details

Date Published: 28 January 2017
PDF: 10 pages
Proc. SPIE 10128, Broadband Access Communication Technologies XI, 101280A (28 January 2017); doi: 10.1117/12.2251244
Show Author Affiliations
Junwen Zhang, ZTE(Tx) Inc. (United States)
Georgia Institute of Technology (United States)
Jianjun Yu, ZTE(Tx) Inc. (United States)
Jing Wang, Georgia Institute of Technology (United States)
Mu Xu, Georgia Institute of Technology (United States)
Lin Cheng, Georgia Institute of Technology (United States)
Feng Lu, Georgia Institute of Technology (United States)
Shuyi Shen, Georgia Institute of Technology (United States)
Yan Yan, Georgia Institute of Technology (United States)
Hyunwoo Cho, Georgia Institute of Technology (United States)
Daniel Guidotti, Georgia Institute of Technology (United States)
Gee-kung Chang, Georgia Institute of Technology (United States)

Published in SPIE Proceedings Vol. 10128:
Broadband Access Communication Technologies XI
Benjamin B. Dingel; Katsutoshi Tsukamoto; Spiros Mikroulis, Editor(s)

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