First Commercial Deployment of a Colorless Gigabit WDM/TDM Hybrid PON System Using Remote Protocol Terminator

Lee, Jie Hyun; Cho, Seung-Hyun; Lee, Han-Hyub; Jung, Eui-Suk; Yu, Jea-Hoon; Kim, Byoung-Whi; Lee, Sang-Hyeun; Koh, Jason S.; Sung, Back-Heung; Kang, Suk-Jin; Kim, Jinhee; Jeong, Ki-Tae; Lee, Sang Soo

doi:10.1109/jlt.2009.2037979

Cited by 48 publications

(5 citation statements)

References 12 publications

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“…Several options including the WDM-PONs (Kani, 2010;Grobe and Elbers, 2008), hybrid TDM/WDM-PONs (Hyun et al, 2010), FiWi (Ghazisaidi and Maier, 2011;Tsagklas and Pavlidou, 2011), Advanced Modulation Techniques (AMTs) (Kamijoh et al, 2009;Chang et al, 2009), TDM-Based LR-OANs ( Van de Voorde et al, 2000;Shea and Mitchell, 2007b), TDM/CWDM-Based LR-OANs and TDM/DWDM-Based LR-OANs (Talli and Townsend, 2006;Shea and Mitchell, 2007c;Jung et al, 2012;Syuhaimi et al, 2013) were reviewed. Although many of these proposed architectures are interesting from the technical perspective, the cost, bandwidth per user and the number of accommodated subscribers remain the dominant factors for commercial success.…”

Section: Discussionmentioning

confidence: 99%

“…In the TDM/WDM-PON, the high data rate provided by the TDM-PONs and the large number of wavelengths offered by the WDM-PONs are joined into one hybrid. The first commercial colourless gigabit TDM/WDM-PON was proposed in (Hyun et al, 2010) for Korea Telecom. Based on the wavelength grid used, TDM/WDM-PONs can be categorised as either TDM/CWDM-PONs or TDM/DWDM-PONs.…”

Section: Hybrid Tdm/wdm-ponmentioning

confidence: 99%

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Long-Reach Optical Access Networks (Lr-Oans): A Promising Candidate for Future Optical Access

Mohamed¹,

Ab-Rahman²

2014

American Journal of Applied Sciences

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The ever-increasing demand for broader bandwidth per user, which results from the continuous development of new bandwidth-hungry services and applications, creates the motivation to upgrade the currently deployed Time-Division Multiplexing Passive Optical Networks (TDM-PONs) to NextGeneration Optical Access Networks (NG-OANs). Beside the need for more bandwidth per user, a further extension in the range and an increase in the split ratio are highly desirable in PONs. These additional requirements can be achieved by adopting so-called Long-Reach Optical Access Networks (LR-OANs). LR-OANs offer a promising solution that ensures a significant number of users can be supported over a longer range. Moreover, they introduce a cost-effective approach in which both the access and metro segments of the telecommunication network are combined into one backhaul segment, which results in the consolidation of many central offices into one trunk-exchange. This cost-effective approach gave us the motivation to provide a comprehensive survey on the LR-OANs. In this study, we first provide a brief review of different potential technologies, proposed for next-generation optical access. We then provide a review of different stat-of-the-art LR-OAN architectures including opportunities and challenges in each one. A comparison among them based on key network specification is also provided.

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Section: Discussionmentioning

confidence: 99%

Section: Hybrid Tdm/wdm-ponmentioning

confidence: 99%

Long-Reach Optical Access Networks (Lr-Oans): A Promising Candidate for Future Optical Access

Mohamed¹,

Ab-Rahman²

2014

American Journal of Applied Sciences

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“…In static schemes, a dedicated pair of wavelengths is allocated to each ONU for upstream and downstream transmissions; whereas in dynamic schemes, wavelengths are allocated dynamically during communication, i.e., each pair of wavelengths can be allocated several times and serve multiple ONUs. Examples of hybrid TDM/CWDM-based PONs and hybrid TDM/DWDM-based PONs can be found in [14][15][16][17][18][19][20][21].…”

Section: Hybrid Tdm/wdm-based Ponsmentioning

confidence: 99%

Long-reach Optical Access (LROA): A Cost-effective Promising Approach

Mohamed¹

2019

COM

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To compensate the decrease in its revenue, most telecom operators have adopted similar strategy which is to provide faster Internet with low cost to its customers. Studies suggested that providing faster Internet with low cost can be achieved by reducing the cost of building next-generation access network. Among the various technologies introduced for next-generation access, long-reach optical access LROA is considered the largest candidate. This is due to the anticipated cost effectiveness of this technology. In LROA, more users can be supported over a common optical component (e.g., a transmitter, a fiber, or probably both), i.e., small number of entities is employed in the access network for service provisioning, which is considered as an improvement in the cost-sharing concept. Our objective in this paper is to verify the cost-effectiveness of this technology. To this end, a statistical-based cost comparison was conducted. The comparison was between the currently deployed passive optical networks (PONs), i.e., the Broad band PON (B-PON [G. 983]), the Ethernet PON (E-PON [IEEE802.3ah]), and the gigabit PON (G-PON [ITU-T G. 984]) and one of the LROA architectures proposed in the literature. The comparison process confirmed that the LROA requires less cost and cost per subscriber as compared with the currently deployed PONs.

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“…In the hybrid TDM/CWDM-PON, a 20nm wavelength spacing is used, while in the hybrid TDM/DWDM-PON, a 0.8 nm or 0.4 nm wavelength spacing is used. The first commercial colorless gigabit TDM/WDM-PON using a remote protocol terminator was proposed and experimentally demonstrated in [3]. It has been used by Korea Telecom since March 2009.…”

Section: [10g-epon] and Itu-t G987 [Xg-pon])mentioning

confidence: 99%

A Frequency Reuse-Based Design for Flexible and Scalable Passive Optical Networks (PONs)

Mohamed¹

2017

NET

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Abstract:The accelerated growth in the bandwidth demand emphasizes the necessity to evolve from the currently deployed gigabit-class passive optical networks (PONs) to the next-generation optical access networks (NG-OANs). Different architectures were proposed in the literature in order to create a NG-OAN that is able to fulfilling the aforementioned goal. In this paper, a time-division multiplexing (TDM)/dense wavelength-division multiplexing (DWDM) scheme was proposed. The proposed scheme is sought to satisfy the current and future anticipated bandwidth demands. The architecture we proposed was able to allow different bit rate optical line terminals OLTs to use the same frequency band, and transmit their services over a 24 km shared feeder to 16 passive remote terminals (PRTs) with 16 ONU group for each. Each group can accommodate up to 16 ONU, total of 256 ONU/PRT, resulting in overall system capacity 4096 ONU. The architecture also allows the independentupgradeability for each optical network terminal ONU.

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First Commercial Deployment of a Colorless Gigabit WDM/TDM Hybrid PON System Using Remote Protocol Terminator

Cited by 48 publications

References 12 publications

Long-Reach Optical Access Networks (Lr-Oans): A Promising Candidate for Future Optical Access

Long-Reach Optical Access Networks (Lr-Oans): A Promising Candidate for Future Optical Access

Long-reach Optical Access (LROA): A Cost-effective Promising Approach

A Frequency Reuse-Based Design for Flexible and Scalable Passive Optical Networks (PONs)

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