Scalable Passive Optical Network Architecture for Reliable Service Delivery

Chen, J.; Wosinska, Lena; Chughtai, Mohsan Niaz; Forzati, Marco

doi:10.1364/jocn.3.000667

Cited by 28 publications

(29 citation statements)

References 10 publications

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“…With the increase in ER, downstream signal (NRZ) is getting better and better. When [20] Scheme in [21] Scheme in [22] Proposed scheme…”

Section: Transmission Performancementioning

confidence: 99%

“…To illustrate advantages of proposed scheme, we compare it with existing schemes [20][21][22]. The number of network components is given in Table 3.…”

Section: Network Costmentioning

confidence: 99%

“…The number of network components is given in Table 3. In the shared part of Table 3, the proposed scheme's numbers of C/Ws, circulators and OPSs are more than those in [20][21][22]. But, firstly, these components provide an approach of tri-reuse wavelength to minimize crosstalk effects.…”

Section: Network Costmentioning

confidence: 99%

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An (OPS-M)-based WDM-PON with functions of wavelength tri-reuse and all-sided fiber protection

et al. 2015

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In this paper, an optical power splitter module (OPS-M) and (OPS-M)-based WDM-PON are proposed.The symmetry and passivity of OPS-M makes it easy to integrate and dirt cheap in practice. It shows this OPS-M can be widely applied in an optical network. By utilizing the OPS-M, the wavelength tri-reuse is realized. At the same time, the coherent interference can also be eliminated due to cross-wavelength reuse. By introducing matrix operations and orthogonal vector group, the relations among wavelengths, optical network units and their services are shown clearly. By designing structure of ONU, feeder fiber and distributed fiber failures can be self-protected. Besides, the ONUs remain colorless and the system has passivity. By the simulation, feasibility of the scheme is demonstrated.

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“…With the increase in ER, downstream signal (NRZ) is getting better and better. When [20] Scheme in [21] Scheme in [22] Proposed scheme…”

Section: Transmission Performancementioning

confidence: 99%

“…To illustrate advantages of proposed scheme, we compare it with existing schemes [20][21][22]. The number of network components is given in Table 3.…”

Section: Network Costmentioning

confidence: 99%

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An (OPS-M)-based WDM-PON with functions of wavelength tri-reuse and all-sided fiber protection

et al. 2015

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“…Network architecture studies have thoroughly established the feasibility of long-reach PONs [5], [14], [15] and are currently exploring advanced architectural options, such as exploiting multiple wavelength channels [16]- [18] or multiple and higher line-rate channels [19], [20]. Several studies, e.g., [21]- [26] have begun to explore DBA protocols for long-reach PONs 0733-8724/$31.00 © 2013 IEEE utilizing multiple wavelength channels.…”

Section: Background and Related Workmentioning

confidence: 99%

Offline and Online Multi-Thread Polling in Long-Reach PONs: A Critical Evaluation

Mercian

McGarry

Reisslein

2013

J. Lightwave Technol.

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Abstract-Multi-thread polling (MTP) with offline scheduling and offline excess bandwidth distribution has recently been proposed to overcome the long propagation delay of long-reach passive optical networks (LR-PONs). In this paper, we propose a complementary MTP approach with online scheduling and online excess bandwidth distribution. We evaluate the throughput-delay performance of offline and online MTP against offline and online singlethread polling (STP) with excess bandwidth distribution as well as double-phase polling (DPP) with excess bandwidth distribution. We find that online MTP and STP as well as DPP give significantly lower average packet delays than offline MTP.Index Terms-Delay evaluation, dynamic bandwidth allocation, excess bandwidth distribution, long-reach PON (LR-PON), multithread polling (MTP).

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“…Some cost efficient end-to-end protection schemes in which optical network units (ONUs) at the users' premises protect each other via interconnecting fibers, can be found in Papers [11] [12]. These schemes offer a great saving of the cost for burying redundant fibers compared to the architectures with duplicated distribution fibers [13].…”

Section: Introductionmentioning

confidence: 99%

Toward reliable hybrid WDM/TDM passive optical networks

et al. 2014

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Individual users and enterprises are increasingly relying on the access to internet services and cannot accept long interruption time as easily as before. Moreover, the main characteristics of next generation optical access (NGOA) networks, such as long reach and large number of users per feeder line, turn the network reliability to an important design parameter to offer uninterrupted service delivery. In this regard, protection mechanisms become one of the crucial aspects that need to be considered in the design process of access networks. On the other hand, it should be noted that not all the users can afford to pay a high extra cost for protection and hence it is important to provide resilience in a costefficient way.A passive optical network (PON) combining wavelength division multiplexing (WDM) and time division multiplexing (TDM) technologies, referred to as hybrid WDM/TDM PON or HPON, is one of the most promising candidates for NGOA networks due to its ability to serve a large number of subscribers and to offer a high capacity per user. For these reasons in this paper, we propose HPON architecture offering different degrees of resilience depending on the user profiles, i.e. partial and full protection for residential and business access, respectively. Besides, the investment cost of providing resilience for the proposed schemes is investigated considering various protection upgrade road maps.Our results confirm that protecting the shared part of network with a large number of users is required in order to keep the failure impact at an acceptable level, with less than 5% increase of the investment cost compared to the unprotected case. Meanwhile, the proposed end-to-end protection for the business users considerably reduces the risk of service interruption for this kind of demanding users without a need for duplicating the deployment cost of an unprotected connection. Furthermore, a sensitivity analysis is performed to investigate the impact of changes in business user percentage and protection upgrade time on the deployment cost. The results may be used as an advice for a costefficient deployment of reliable fiber access networks.

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Scalable Passive Optical Network Architecture for Reliable Service Delivery

Cited by 28 publications

References 10 publications

An (OPS-M)-based WDM-PON with functions of wavelength tri-reuse and all-sided fiber protection

An (OPS-M)-based WDM-PON with functions of wavelength tri-reuse and all-sided fiber protection

Offline and Online Multi-Thread Polling in Long-Reach PONs: A Critical Evaluation

Toward reliable hybrid WDM/TDM passive optical networks

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