Adaptation of Mode Filtering Technique in 4G-LTE Hybrid RoMMF-FSO for Last-mile Access Network

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F17%3A00311784" target="_blank" >RIV/68407700:21230/17:00311784 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1109/JLT.2017.2708324" target="_blank" >http://dx.doi.org/10.1109/JLT.2017.2708324</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/JLT.2017.2708324" target="_blank" >10.1109/JLT.2017.2708324</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Adaptation of Mode Filtering Technique in 4G-LTE Hybrid RoMMF-FSO for Last-mile Access Network

Popis výsledku v původním jazyce

This paper demonstrates a hybrid radio over multi-mode fibre and free space optics (RoMMF-FSO) system that can be used to extend the transmission range of the 4th generation long-term evolution (4G-LTE) signal in access networks. A single mode filtering technique (SMFT) is used to enhance 4G-LTE performance. The proposed scheme is evaluated in terms of the system transfer function, laser beam profile, and error vector magnitude (EVM). We show that using SMFT increases the RoMMF-FSO system bandwidth by 2 GHz and improves the received optical power by 13.6 dB. Moreover, the proposed system enhances the EVM by 4%. The measured results show that using a 1 km MMF instead of a 1 km SMF will marginally increase the measured EVM from ~6.6% to ~7% with a 0.2 dB power penalty with respect to the LTE EVM limit of 12.5% as is specified for 16-quadrature amplitude modulation. The proposed system is validated practically under atmospheric turbulence conditions to mimic the outdoor environment. Measured EVM results are verified theoretically through transmitting LTE signals with turbulent using log-normal model. We also show that for a FSO link span of 500 m to meet the EVM target of 12.5% the SNR power penalties are ~2 dB and ~11 dB for Rytov variance of 1.2x10sup>-4</sup> and 0.1, respectively compared with no turbulence.

Název v anglickém jazyce

Adaptation of Mode Filtering Technique in 4G-LTE Hybrid RoMMF-FSO for Last-mile Access Network

Popis výsledku anglicky

This paper demonstrates a hybrid radio over multi-mode fibre and free space optics (RoMMF-FSO) system that can be used to extend the transmission range of the 4th generation long-term evolution (4G-LTE) signal in access networks. A single mode filtering technique (SMFT) is used to enhance 4G-LTE performance. The proposed scheme is evaluated in terms of the system transfer function, laser beam profile, and error vector magnitude (EVM). We show that using SMFT increases the RoMMF-FSO system bandwidth by 2 GHz and improves the received optical power by 13.6 dB. Moreover, the proposed system enhances the EVM by 4%. The measured results show that using a 1 km MMF instead of a 1 km SMF will marginally increase the measured EVM from ~6.6% to ~7% with a 0.2 dB power penalty with respect to the LTE EVM limit of 12.5% as is specified for 16-quadrature amplitude modulation. The proposed system is validated practically under atmospheric turbulence conditions to mimic the outdoor environment. Measured EVM results are verified theoretically through transmitting LTE signals with turbulent using log-normal model. We also show that for a FSO link span of 500 m to meet the EVM target of 12.5% the SNR power penalties are ~2 dB and ~11 dB for Rytov variance of 1.2x10sup>-4</sup> and 0.1, respectively compared with no turbulence.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

IEEE/OSA Journal of Lightwave Technology

ISSN

0733-8724

e-ISSN

1558-2213

Svazek periodika

33

Číslo periodika v rámci svazku

17

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

3758-3764

Kód UT WoS článku

000406290200018

EID výsledku v databázi Scopus

2-s2.0-85029070906