Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/169485
Title: Adaptation of Mode Filtering Technique in 4G-LTE Hybrid RoMMF-FSO for Last-Mile Access Network
Authors: Hassan K. Al-Musawi;Tamas Cseh;Jan Bohata;Wai Pang Ng;Zabih Ghassemlooy;Stanislav Zvanovec;Eszter Udvary;Petr Pesek
Year: 2017
Publisher: IEEE
Abstract: This paper demonstrates a hybrid radio over multimode fibre and free space optics (RoMMF-FSO) system that can be used to extend the transmission range of the fourth 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 by 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 1.2 &x00D7; 10<sup>-4</sup> and 0.1, respectively, compared with no turbulence.
URI: http://localhost/handle/Hannan/169485
volume: 35
issue: 17
More Information: 3758,
3764
Appears in Collections:2017

Files in This Item:
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7933961.pdf993.99 kBAdobe PDF
Title: Adaptation of Mode Filtering Technique in 4G-LTE Hybrid RoMMF-FSO for Last-Mile Access Network
Authors: Hassan K. Al-Musawi;Tamas Cseh;Jan Bohata;Wai Pang Ng;Zabih Ghassemlooy;Stanislav Zvanovec;Eszter Udvary;Petr Pesek
Year: 2017
Publisher: IEEE
Abstract: This paper demonstrates a hybrid radio over multimode fibre and free space optics (RoMMF-FSO) system that can be used to extend the transmission range of the fourth 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 by 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 1.2 &x00D7; 10<sup>-4</sup> and 0.1, respectively, compared with no turbulence.
URI: http://localhost/handle/Hannan/169485
volume: 35
issue: 17
More Information: 3758,
3764
Appears in Collections:2017

Files in This Item:
File SizeFormat 
7933961.pdf993.99 kBAdobe PDF
Title: Adaptation of Mode Filtering Technique in 4G-LTE Hybrid RoMMF-FSO for Last-Mile Access Network
Authors: Hassan K. Al-Musawi;Tamas Cseh;Jan Bohata;Wai Pang Ng;Zabih Ghassemlooy;Stanislav Zvanovec;Eszter Udvary;Petr Pesek
Year: 2017
Publisher: IEEE
Abstract: This paper demonstrates a hybrid radio over multimode fibre and free space optics (RoMMF-FSO) system that can be used to extend the transmission range of the fourth 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 by 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 1.2 &x00D7; 10<sup>-4</sup> and 0.1, respectively, compared with no turbulence.
URI: http://localhost/handle/Hannan/169485
volume: 35
issue: 17
More Information: 3758,
3764
Appears in Collections:2017

Files in This Item:
File SizeFormat 
7933961.pdf993.99 kBAdobe PDF