Centralized Control and Core Function Prepositioning for Point-to-Point Service Slicing in Multidimensional Large-Scale Optical Networks

2020 ◽  
Author(s):  
Xin Li ◽  
Bingli Guo ◽  
Dajiang Wang ◽  
Jiayu Wang ◽  
Wulin Cheng ◽  
...  
Keyword(s):  
Optical Networks ◽  
Large Scale ◽  
Centralized Control ◽  
Core Function ◽  
Point To Point

Core Function Prepositioning for Point-to-Point Service Slicing in Large-Scale Optical Networks

2021 ◽  
pp. 1-1
Author(s):  
Xin Li ◽  
Bingli Guo ◽  
Dajiang Wang ◽  
Jiayu Wanga ◽  
Wulin Cheng ◽  
...  
Keyword(s):  
Optical Networks ◽  
Large Scale ◽  
Core Function ◽  
Point To Point

Interference mitigation in point to point wireless sensor networks using LSP protocol and time division multiplexing approach

2020 ◽  
Vol 39 (4) ◽  
pp. 5449-5458
Author(s):  
A. Arokiaraj Jovith ◽  
S.V. Kasmir Raja ◽  
A. Razia Sulthana
Keyword(s):  
Energy Consumption ◽  
Large Scale ◽  
Control Parameter ◽  
Interference Mitigation ◽  
Wireless Sensor ◽  
Point To Point ◽  
A Minor ◽  
Two Stages ◽  
Time Division ◽  
And Control

Interference in Wireless Sensor Network (WSN) predominantly affects the performance of the WSN. Energy consumption in WSN is one of the greatest concerns in the current generation. This work presents an approach for interference measurement and interference mitigation in point to point network. The nodes are distributed in the network and interference is measured by grouping the nodes in the region of a specific diameter. Hence this approach is scalable and isextended to large scale WSN. Interference is measured in two stages. In the first stage, interference is overcome by allocating time slots to the node stations in Time Division Multiple Access (TDMA) fashion. The node area is split into larger regions and smaller regions. The time slots are allocated to smaller regions in TDMA fashion. A TDMA based time slot allocation algorithm is proposed in this paper to enable reuse of timeslots with minimal interference between smaller regions. In the second stage, the network density and control parameter is introduced to reduce interference in a minor level within smaller node regions. The algorithm issimulated and the system is tested with varying control parameter. The node-level interference and the energy dissipation at nodes are captured by varying the node density of the network. The results indicate that the proposed approach measures the interference and mitigates with minimal energy consumption at nodes and with less overhead transmission.

Sparse Placement of Wavelength Convertible 3R Regenerators and Joint Resource Assignment in Large-Scale Optical Networks

2013 ◽  
Vol E96.B (7) ◽  
pp. 1845-1856
Author(s):  
Xin WANG ◽  
Filippos BALASIS ◽  
Sugang XU ◽  
Yoshiaki TANAKA
Keyword(s):  
Optical Networks ◽  
Large Scale ◽  
Resource Assignment

Parallel Data Transfer Protocol

2013 ◽  
pp. 238-255 ◽  
Author(s):  
Yushi Shen ◽  
Yale Li ◽  
Ling Wu ◽  
Shaofeng Liu ◽  
Qian Wen
Keyword(s):  
Optical Networks ◽  
Packet Loss ◽  
Large Scale ◽  
Data Transfer ◽  
Current Data ◽  
Packet Losses ◽  
Multiple Flows ◽  
Data Transfer Protocol ◽  
Display Walls ◽  
Synchronization Mechanisms

Transferring very high quality digital objects over the optical network is critical in many scientific applications, including video streaming/conferencing, remote rendering on tiled display walls, 3D virtual reality, and so on. Current data transfer protocols rely on the User Datagram Protocol (UDP) as well as a variety of compression techniques. However, none of the protocols scale well to the parallel model of transferring large scale graphical data. The existing parallel streaming protocols have limited synchronization mechanisms to synchronize the streams efficiently, and therefore, are prone to slowdowns caused by significant packet loss of just one stream. In this chapter, the authors propose a new parallel streaming protocol that can stream synchronized multiple flows of media content over optical networks through Cross-Stream packet coding, which not only can tolerate random UDP packet losses but can also aim to tolerate unevenly distributed packet loss patterns across multiple streams to achieve a synchronized throughput with reasonable coding overhead. They have simulated the approach, and the results show that the approach can generate steady throughput with fluctuating data streams of different data loss patterns and can transfer data in parallel at a higher speed than multiple independent UDP streams.

Wavelength Division Multiplexed Passive Optical Networks

2010 ◽  
pp. 68-101
Author(s):  
Calvin C.K. Chan
Keyword(s):  
Optical Networks ◽  
Large Scale ◽  
Driving Forces ◽  
Optical Network ◽  
Access Network ◽  
High Capacity ◽  
Next Generation ◽  
Wavelength Division ◽  
Wavelength Division Multiplexed ◽  
Capacity Data

Wavelength division multiplexed passive optical network has emerged as a promising solution to support a robust and large-scale next generation optical access network. It offers high-capacity data delivery and flexible bandwidth provisioning to all subscribers, so as to meet the ever-increasing bandwidth requirements as well as the quality of service requirements of the next generation broadband access networks. The maturity and reduced cost of the WDM components available in the market are also among the major driving forces to enhance the feasibility and practicality of commercial deployment. In this chapter, the author will provide a comprehensive discussion on the basic principles and network architectures for WDM-PONs, as well as their various enabling technologies. Different feasible approaches to support the two-way transmission will be discussed. It is believed that WDM-PON is an attractive solution to realize fiber-to-the-home (FTTH) applications.

Dazzling the Multitude Original Media Spectacles

1990 ◽  
Author(s):  
Carolyn Marvin
Keyword(s):  
Nineteenth Century ◽  
Large Scale ◽  
New Technologies ◽  
Late Nineteenth Century ◽  
Social Worlds ◽  
Media Technologies ◽  
The Social ◽  
Late Nineteenth ◽  
Words And Images ◽  
Point To Point

Anthropologists and literary theorists are fond of emphasizing the particularistic and dramatic dimensions of lived communication. The particularistic dimension of communication is constituted in whatever of its aspects have the most individually intimate meaning for us. The dramatic dimension is the shared emotional character of a communicated message, displayed and sometimes exaggerated for consumption by a public. Its dramatic appeal and excitement depend partly on the knowledge that others are also watching with interest. Such dimensions have little in common with abstractions about information and efficiency that characterize contemporary discussion about new communications technologies, but may be closer to the real standards by which we judge media and the social worlds they invade, survey, and create. Media, of course, are devices that mediate experience by re-presenting messages originally in a different mode. In the late nineteenth century, experts convinced of the power of new technologies to repackage human experience and to multiply it for many presentations labored to enhance the largest, most dramatically public of messages, and the smallest, most intimately personal ones, by applying new media technologies to a range of modes from private conversation to public spectacle, that special large-scale display event intended for performance before spectators. In the late nineteenth century, intimate communication at a distance was achieved, or at least approximated, by the fledgling telephone. The telephone of this era was not a democratic medium. Spectacles, by contrast, were easily accessible and enthusiastically relished by their nineteenth-century audiences. Their drama was frequently embellished by illuminated effects that inspired popular fantasies about message systems of the future, perhaps with giant beams of electric light projecting words and images on the clouds. Mass distribution of electric messages in this fashion was indeed one pole of the range of imaginative possibilities dreamt by our ancestors for twentieth-century communication. Equally absorbing was the fantasy of effortless point-to-point communication without wires, where no physical obstacle divided the sympathy of minds desiring mutual communion.

RSVP-TE Bilateral-Recursive Region Re-Routing Crankback Mechanism for Large-Scale Optical Networks

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Panke Qin ◽  
Jiawei Wang ◽  
Jingru Wu
Keyword(s):  
Real Time ◽  
Optical Networks ◽  
Traffic Engineering ◽  
Large Scale ◽  
Setup Time ◽  
Multiprotocol Label Switching ◽  
Transmission Scheme ◽  
Internet Applications ◽  
Time Dynamic ◽  
Reservation Protocol

AbstractCloud computing services and real-time Internet applications have spawned a large variety of potential requirements for quality of service (QoS), especially the latency and connection setup time. However, with the optical networks develop toward to larger scale, wider coverage and more users access, conventional resource reservation protocol traffic engineering (RSVP-TE) signal hop by hop transmission scheme cannot meet the requirements of these new applications for real-time dynamic services and fast restoration with long propagation delays. This paper proposes a novel RSVP-TE bilateral-recursive region re-routing crankback mechanism (BRCB) base on distributed path computation element (PCE) for generalized multiprotocol label switching (GMPLS) optical networks. In this mechanism, the backtracking nodes re-route and update the region routing paths which bypass the crankback and re-routing failure nodes when crankback occurs. It not only reduces the influencing factors of the scale of network, signaling crankback position and frequency to path connection setup time, but also avoids the backtracking of teardown messages.

Research on the Application of Organizational Management Information System

2014 ◽  
Vol 687-691 ◽  
pp. 2853-2857
Author(s):  
Zhi Mei Zhang
Keyword(s):  
Information System ◽  
Management Information System ◽  
Large Scale ◽  
Organizational Management ◽  
Systems Science ◽  
Management Information ◽  
The Core ◽  
Core Function ◽  
Science Management ◽  
Sport Events

To well organize China's Large-scale Sport Events, causes the Large-scale Sport Events organization to manage in the process each kind of activity and the work carries on the effective classification the equipment personnel and the division of labor authorization, we synthesized research techniques and so on utilization systems science, management science, mathematics modeling, artificial intelligence, information technology design in China's Large-scale Sport Events to organize the management information system, This article comprehensively elaborated this system function demand, the bare bone, the system design and the core function and so on.

Hierarchical Control of Multi-Domain Power Flow in Mobile Systems: Part II — Aircraft Application

2015 ◽  
Author(s):  
Matthew A. Williams ◽  
Justin P. Koeln ◽  
Andrew G. Alleyne
Keyword(s):  
Power Systems ◽  
Power Flow ◽  
Large Scale ◽  
Control Method ◽  
Hierarchical Control ◽  
Mobile Systems ◽  
Centralized Control ◽  
Modeling Framework ◽  
Control Framework ◽  
Aircraft Application

This two-part paper presents the development of a hierarchical control framework for the control of power flow throughout large-scale systems. Part II presents the application of the graph-based modeling framework and three-level hierarchical control framework to the power systems of an aircraft. The simplified aircraft system includes an engine, electrical, and thermal systems. A graph based approach is used to model the system dynamics, where vertices represent capacitive elements such as fuel tanks, heat exchangers, and batteries with states corresponding to the temperature and state of charge. Edges represent power flows in the form of electricity and heat, which can be actuated using control inputs. The aircraft graph is then partitioned spatially into systems and subsystems, and temporally into fast, medium, and slow dynamics. These partitioned graphs are used to develop models for each of the three levels of the hierarchy. Simulation results show the benefits of hierarchical control compared to a centralized control method.

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