FTTH and Two-Band RoF Transport Systems Based on an Optical Carrier and Colorless Wavelength Separators

Chang, Ching-Hung; Peng, Peng‐Chun; Huang, Q.; Yang, Wei-Yuan; Hu, Hsuan-Wen; Wu, Wenzhuo; Huang, Jui-Hsiung; Li, C. Y.; Lu, Hai‐Han; Yee, Hoshin

doi:10.1109/jphot.2015.2510331

Cited by 9 publications

(3 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There exist multiple gigabit-capable technologies that can support fronthaul transport networks such as Passive Optical Network (PON), Free Space Optic (FSO), and millimeter waves are striking options. [14][15][16][17][18] In this paper, we target both optical-based technologies i.e. PON and FSO for fronthaul connections.…”

Section: Introductionmentioning

confidence: 99%

Hybrid passive optical network–free-space optic-based fronthaul architecture for ultradense small cell network

et al. 2020

View full text Add to dashboard Cite

In future Radio Access Network (RAN), many small cells will be densely deployed to meet the capacity demand of mobile users. Centralized Radio Access Network (CRAN) is a potential solution to increase the capacity demand of RAN. CRAN breaks the functionality of RAN between Remote Radio Head (RRH) and Base Band Unit (BBU) where RRH and BBU are preferably connected by an optical link called fronthaul link. However, the deployment of fiber for fronthaul connectivity, at each Small Cell (SC) location, is impossible or impractical due to cost or other constraints. As such, Passive Optical Network (PON) and Free Space Optic (FSO) technologies have emerged as potential candidates for fronthaul transmission when the complete optical fiber-based infrastructure for fronthaul network cannot be deployed alone. In this paper, we propose a hybrid PON and FSO based method for SC fronthaul connections that considers three different network constraints i.e. bandwidth, data rate, and latency. Based on this, we formulate the problem and propose a novel method to perform cell association, namely Minimum Sum Selection (MSS). The performance is evaluated in terms of the number of SCs connected and the proposed method is compared with two other baselines, namely: Minimum Rate Selection (MRS) and Random Selection Method (RSM). The results show that despite MSS requiring knowledge of all network constraints, it has a better performance at the cost of more computation resources, achieving gains of 7% and 6.5% in cell connections when compared to the other two baseline methods.

show abstract

Section: Introductionmentioning

confidence: 99%

Hybrid passive optical network–free-space optic-based fronthaul architecture for ultradense small cell network

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Recently, passive optical networks (PONs), including timedivision-multiplexing (TDM), wavelength-division-multiplexing (WDM) and time-and wavelength-division-multiplexing (TWDM) systems, have begun to be considered as cost-effective solutions and promising technologies for highcapacity broadband access networks [1][2][3][4]. Due to different geographical constraints, the deployment of conventional PON architecture using optical fibers can be difficult and expensive [5,6].…”

Section: Introductionmentioning

confidence: 99%

Hybrid free space optical communication system and passive optical network with high splitting ratio for broadcasting data traffic

Yeh

Guo

et al. 2018

J. Opt.

View full text Add to dashboard Cite

In this paper, we propose and demonstrate a free space optical (FSO) communication system with 10 Gbit s−1 on-off keying traffic, which is integrated in a passive optical network (PON) for broadcasting wireless data. After a transmission distance of 25 km of single-mode fiber and a free space transmission length of 6 m, the observed optical sensitivity of the FSO signal can reach −35.2 dBm within the forward error correction level at the bit error ratio of 3.8 × 10−3. Here, according to the obtained results of experiment and simulation, the FSO signal can support 2048 remote optical wireless units (OWUs) for wireless access via the PON network in free space transmission lengths of 0 to 160 m. Moreover, the proposed FSO-PON system also can support 1024, 512 and 256 remote OWUs in free space transmission lengths of 250, 350 and 500 m, respectively.

show abstract

“…At present, fiber optic networks are fairly advanced. Fiber optic transmission has been extensively used in long-distance backbone networks, mid-distance urban networks, and shortdistance local networks [1][2][3]. Such trend of fiber optic transmission propels the development of light communication networks in free space and has become a popular research topic.…”

Section: Introductionmentioning

confidence: 99%

A 150 m/22.5 Gbaud PAM4-based FSO link

Tsai

2017

Laser Phys. Lett.

View full text Add to dashboard Cite

A 22.5 Gbaud four-level pulse amplitude modulation (PAM4) signal applied to free-space optical link was experimentally tested using a 3 dB laser at a bandwidth of 10 GHz to directly modulate the 22.5 Gbaud PAM4 signal via injection-locked technology. Through the design of pre-compensation and equalizer for signal quality improvement, a successful transmission of 150 m in free space was achieved with good real-time bit error rate performance and clear eye diagrams (three independent eye diagrams).

show abstract

FTTH and Two-Band RoF Transport Systems Based on an Optical Carrier and Colorless Wavelength Separators

Cited by 9 publications

References 15 publications

Hybrid passive optical network–free-space optic-based fronthaul architecture for ultradense small cell network

Hybrid passive optical network–free-space optic-based fronthaul architecture for ultradense small cell network

Hybrid free space optical communication system and passive optical network with high splitting ratio for broadcasting data traffic

A 150 m/22.5 Gbaud PAM4-based FSO link

Contact Info

Product

Resources

About