Recent development on time and wavelength-division multiplexed passive optical network (TWDM-PON) for next-generation passive optical network stage 2 (NG-PON2)

Bindhaiq, Salem; Supa’at, Abu Sahmah Mohd.; Zulkifli, Nadiatulhuda; Mohammad, Abu Bakar; Shaddad, Redhwan Q.; Elmagzoub, M. A.; Wang, Li

doi:10.1016/j.osn.2014.06.007

Cited by 84 publications

(20 citation statements)

References 51 publications

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“…TDM-PON splits the optical power over a limited number of users based on a synchronized time slot in which all users share the available bandwidth. Due to the increasing demand for advanced multimedia applications, TDM-PON becomes insufficient enough for the high data rate that is required [1]. Wavelength Division Multiplexing-Passive Optical Network (WDM-PON) is the future of the next-generation network, which achieves the full usage of bandwidth by assigning for each user his own wavelength that creates a virtual connection between the Central Office (CO) and the user terminal [2].…”

Section: Introductionmentioning

confidence: 99%

Performance Enhancement and Capacity Enlargement for a DWDM-PON System Utilizing an Optimized Cross Seeding Rayleigh Backscattering Design

Mohammed

Mansi

2019

Applied Sciences

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In this work, a record of 16 channels, with future channel spacing in the telecommunication standardization sector of the International Telecommunications Union G.694.1 (ITU-T G.694.1) for Dense Wavelength Division Multiplexing (DWDM) (i.e., 12.5 GHz), is simulated and tested. This work is done to realize a proposed high capacity DWDM-Passive Optical Network (DWDM-PON) system. These specifications are associated with enhancing the upstream (US) capacity to 2.5 Gb/s over a 25 km Single-Mode Fiber (SMF) transmission and producing a noteworthy average Bit Error Rate (BER) of 10 −12 during the system's evaluation process. These performance indicators are achieved through design optimization of the cross-seeding Rayleigh Backscattering (RB) elimination technique. This optimization has successfully reduced (compared to the cross-seeding related literature) the simulated DWDM-PON components and maintained an effective Rayleigh Backscattering elimination with the aforementioned system's performance enhancement and capacity enlargement.(1) injection-locked Fabry-Perot Lasers (FP-Ls) [5,6], (2) Reflective Semiconductor Optical Amplifiers (RSOAs) [7], and (3) Semiconductor Optical Amplifier (SOAs) with Reflective Electro-Absorption Modulators (R-EAMs) [8]. However, reflective transmitters that utilize FP-L require polarization and temperature control, which add complexity [5]. Those that use RSOAs suffer from a limited bit ratẽ 1.25 Gb/s due to internal noises and nonlinearities [9]. Finally, any colorless ONU that uses SOA with R-EAM (SOA-REAM) suffers from chromatic dispersion and high interference in the signal due to the wide bandwidth of R-EAM [10]. As a result, the reflective transmitter technique generates a high level of Rayleigh Backscattering (RB), which affects the signal received at the CO [11]. Before reviewing the DWDM-PON system's key requirements, it is useful to conduct a review of the origins and effects of RB. Rayleigh Scattering is a dominant intrinsic loss mechanism in the low-absorption window between the ultraviolet and infrared absorption tails. It results from random inhomogeneities occurring on a small scale compared to the operating wavelength. These inhomogeneities act as refractive index fluctuations (or induced dipole moment) within the fiber and arise from density and compositional variations, which are frozen into the glass lattice upon cooling [12,13].Optical losses, due to RB in optical fibers, have caused considerable problems. Some examples of these problems include lowering the allowable bit rate, increasing the system's noise levels, and minimizing the transmission distances [14][15][16][17]. Detailed examples and deeper analyses can be found for bi-directional wavelength-reuse fiber systems and WDM-PON Systems in [14][15][16][17]. To the author's best knowledge, this work is one of the rare studies that considers RB for DWDM-PON systems with remarkable operating conditions. Now, methods for satisfying the most critical requirements for DWDM-PON systems (i.e., a low-cost ONU colorless o...

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Section: Introductionmentioning

confidence: 99%

Performance Enhancement and Capacity Enlargement for a DWDM-PON System Utilizing an Optimized Cross Seeding Rayleigh Backscattering Design

Mohammed

Mansi

2019

Applied Sciences

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“…Thus, the hybrid approach combines the great capability of TDM and the flexibility of WDM into a single design architecture via distributing the time slot frames to several subscribers through the number of wavelength channels [11]. In NG-EPON, there are different problems that need to be addressed; key enabling technologies and upgradation of devices, security assurance issues because of the broadcasting nature in the downstream direction, eavesdropping, and an optimized/efficient bandwidth utilization DWBA scheme for upstream traffic [12,13].…”

Section: Introductionmentioning

confidence: 99%

QoS-Based DWBA Algorithm for NG-EPON

Rafiq

Hayat

2019

Electronics

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The next-generation Ethernet passive optical network (NG-EPON) is basically classified into two architectures on the basis of the wavelength sharing by the optical network units (ONUs). The single scheduling domain (SSD) and multi-scheduling domain (MSD) EPON are the two different design architectures for NG-EPON. A vital task in NG-EPON is to design dynamic wavelength bandwidth allocation (DWBA) algorithms that can meet the future demands of the network subscribers. A number of DWBA algorithms have been designed for time and wavelength division multiplex (TWDM) EPON. The existing DWBA algorithms for TWDM-EPON could be used in MSD-EPON by making necessary parametric changes. The design and implementation of new DWBA algorithms for MSD-EPON are still required specifically. In this paper, we have proposed a quality of service (QoS)-based DWBA algorithm for NG-EPON. We have comparatively analyzed our proposed DWBA with the existing algorithms like earlier finished time (EFT), weighted bipartite matching (WBM), and earlier finished time with void filling (EFT-VF). The results show that our proposed DWBA algorithm performs better as compared to EFT, WBM, and EFT-VF on the basis of average packet delay and average completion time for NG-EPON.

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“…The resource allocation in passive optical network (PON) is utilized for dynamic bandwidth allocation (DBA), power allocation (power control), multiple bit rate control and the adjustment of the number of actives optical network units (ONUs), such as sleep mode, to improve the network capacity, flexibility and energy efficiency [1] [2] [3]. In the power allocation problem the aim is to obtain the optimization of the transmitted power to minimize the interference between the users and maximize the energy efficiency, considering the quality of service (QoS) restrictions in terms of signal-to-noise-plus interference ratio (SNIR) of each optical user class [4] [5].…”

Section: Introductionmentioning

confidence: 99%

“…In this work, the meta-heuristic of particle swarm optimization (PSO) and its variations are considered in the investigation of the power allocation problem in context of the next generation of PONs (NG-PONs) [11]. The Power Allocation in PON-OCDMA with Improved Chaos Particle Swarm Optimization Gisele A. Santana 1 , Fábio R. Durand 1 and Taufik Abrão 2 the advanced modulation format [1][2] [3]. PONs based on OCDMA (PON-OCDMA) technology presents characteristics such as asynchronous operation, high network flexibility, protocol transparency, simplified network control, quality of service (QoS) in the physical layer and improvement in security aspects [4] [19].…”

Section: Introductionmentioning

confidence: 99%

Power Allocation in PON-OCDMA with Improved Chaos Particle Swarm Optimization

Santana

Durand

Abrão

2018

J. Microw. Optoelectron. Electromagn. Appl.

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In this work, it is investigated an improved chaos particle swarm optimization (IC-PSO) scheme to refine the quality of the algorithm solutions regarding to solve the optimal power allocation in next generation passive optical networks (NG-PON)s. The proposed IC-PSO scheme utilizes the Beta distribution instead of uniform distribution of the traditional PSO. A factor of damping based in the chaotic logistic map related to the updating of the best global val ue is successful introduced. The numerical results corroborate the best relation between the performance-complexity tradeoff and the quality of the algorithm solutions for the proposed IC-PSO when compared with the classical PSO power allocation scheme. Index Terms-Passive optical network, optical code division multiplexing access, chaos particle swarm optimization.

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Recent development on time and wavelength-division multiplexed passive optical network (TWDM-PON) for next-generation passive optical network stage 2 (NG-PON2)

Cited by 84 publications

References 51 publications

Performance Enhancement and Capacity Enlargement for a DWDM-PON System Utilizing an Optimized Cross Seeding Rayleigh Backscattering Design

Performance Enhancement and Capacity Enlargement for a DWDM-PON System Utilizing an Optimized Cross Seeding Rayleigh Backscattering Design

QoS-Based DWBA Algorithm for NG-EPON

Power Allocation in PON-OCDMA with Improved Chaos Particle Swarm Optimization

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