10G-PON

About: 10G-PON is a research topic. Over the lifetime, 1675 publications have been published within this topic receiving 27843 citations. The topic is also known as: XG-PON.

Optical access solutions beyond 10G-EPON/XG-PON

Abstract: This paper discusses WDM-based optical access networks beyond 10G-EPON and XG-PON. It describes drivers and requirements. Challenges as well as possible solutions are outlined.

Software-defined optical access networks for multiple broadband access solutions

Abstract: The principles of software-defined networking as applied to multi-service broadband optical access systems are discussed, with an emphasis on centralized software-reconfigurable resource management, digital signal processing (DSP)-enhanced transceivers and multi-service support via software-reconfigurable network “apps”.

Generalized SDN control for access/metro/core integration in the framework of the interface to the Routing System (I2RS)

Abstract: Software defined networking (SDN), originally designed to operate on access Ethernet-based networks, has been recently proposed for different specific networking scenarios, including core or metro/aggregation networks. In this study, we extend this concept to enable a comprehensive control of a converged access, metro and edges of a core network. In particular, a generalized SDN controller is proposed for upstream global QoS traffic engineering of passive optical networks (PONs), Ethernet metro/aggregation segment and IP/MPLS networks through the adoption of an unique interface, in the framework of the Interface to the Routing System (I2RS). Extended OpenFlow functionalities and Path Computation Element Protocol (PCEP) interfaces are encompassed to achieve effective dynamic flow control.

Performance evaluation and demonstration of light-trails in shared wavelength optical networks (SWONs)

Abstract: Light-trails are a promising candidate for grooming of traffic in the optical layer. We investigated the performance of light-trails via theory, simulation and experiment focusing on its efficiency. (2 pages)

Progressive network recovery in optical core networks

Abstract: Disasters hit telecommunication structures every year. As Earth becomes more disaster-prone, telecom networks, and especially optical networks due to their high capacity, should be designed to prepare against disasters. Although disaster resiliency for optical core networks has been subject of significant recent research, damages on the network infrastructure due to the direct or indirect impacts of disasters are usually inevitable. In fact, even if undamaged parts of the network may still be functional, soon the survived resources might get exhausted to serve the residual traffic from unaffected regions. Besides, traffic from affected regions should be recovered quickly to help survivors and rescue teams to recover at least the essential communication services. Full recovery may take weeks and multi-stage progressive-recovery plans are needed. Thus, efficient recovery methods for optical core networks should also be designed. There are only a few research on progressive network recovery problem, mostly dealing with generic IP transport networks. In this work, we investigate the problem of progressive network recovery with a specific focus on the role of different optical network architectures, namely opaque, transparent, and elastic optical networks. We formulate the problem into a set of Mixed Integer Linear Programming (MILP) models. The numerical examples show that optical networks that exploit recent technological advances, i. e., elastic optical networks, perform better than classical architectures (opaque and transparent optical networks) in terms of traffic recovered, due to its higher spectrum-utilization efficiency. The numerical examples also showed that pre-deploying some spare transponders can significantly increase network recovery performance.