Study on P2P Service Bearer Method for Passive Optical Network for Long Distance and Wide Access

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Yan Wang ◽  
Shangya Han ◽  
Panke Qin ◽  
Yaping Li ◽  
Yanmei Shen
Keyword(s):  
Simulation Analysis ◽  
Optical Network ◽  
Passive Optical Network ◽  
Data Traffic ◽  
Core Network ◽  
Long Distance ◽  
Optical Line Terminal ◽  
Optical Line ◽  
Wide Access ◽  
P2p Service

AbstractFor the effective bearer of P2P-type services, a P2P service bearer reorientation method for passive optical network for long-distance wide access based on P2P protocol message and wire-speed message identification is proposed. However, the reorientation method still has the possibility of relocation failure, so it is modified – that is, an improved P2P service bearer reorientation method based on optical line terminal (OLT) and optical network unit (ONU) cooperation. And the tool NS2 is used for network simulation analysis. Through simulation analysis, it is verified that the modified reorientation method improves the data traffic burden at the core network and at the OLT.

scholarly journals AN ENHANCED G-PON FAULT MONITORING TECHNIQUE USING OPTICAL SENSOR

2019 ◽  
Vol 1 (2) ◽  
pp. 39-42
Author(s):  
Auwalu Usman ◽  
Nadiatulhuda Zulkifli ◽  
Mohd Rashidi Salim ◽  
Kharina Khairi
Keyword(s):  
Signal Transmission ◽  
Optical Network ◽  
Passive Optical Network ◽  
Optical Line Terminal ◽  
Fbg Sensor ◽  
Fault Monitoring ◽  
Monitoring Technique ◽  
Optical Line ◽  
Data Signal ◽  
Optical Distribution

In this study a technique for a centralized fault monitoring and detection in Gigabit-capable Passive Optical Network (G-PON) using fiber Bragg grating (FBG) sensor is proposed. The technique detects fault once it occurs at the vulnerable locations in the fiber optic distribution link by the proposed FBG devices. Monitoring signal in the C-band is reflected by a uniform FBG with different Bragg wavelengths and reflectivities. The FBGs serve as branch identifiers in the network. The reflected signal from the FBGs is analyzed at the Optical Line Terminal (OLT) in the Central Office (CO) by an Optical Spectrum Analyzer (OSA), to identify the branch with rupture in the network. The simulated result obtained shows that the system can monitor, and detect a fault in the physical layer of the optical distribution network with negligible effects on data signal transmission.

Experiment Study of Downstream Traffic Balancing Strategy on 40G Long Reach Coherent PON

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Panke Qin ◽  
Jiawei Wang ◽  
Jingru Wu ◽  
Shangya Han ◽  
Qing Ye
Keyword(s):  
Optical Networks ◽  
Optical Network ◽  
Experimental System ◽  
Passive Optical Network ◽  
Core Network ◽  
Bandwidth Utilization ◽  
Dynamic Traffic ◽  
Device Structure ◽  
Long Distance ◽  
Traffic Balancing

AbstractDistributed high-bandwidth consumption services such as cloud computing require large-capacity, long-distance, and wide-coverage development requirements for Next-Generation Passive Optical Networks (NG-PON2). With the development of NG-PON2 technology, the optical line terminal (OLT) device structure of passive optical network (PON) system is also increasingly complex and heterogeneous. This leads to the problem of network congestion and low bandwidth utilization caused by the unbalanced use of link and port resources in the traditional core network in the PON network. Based on the 40G coherent PON experimental system, this paper studies the traffic balancing problem of OLT equipment, and proposes a dynamic traffic balancing strategy based on real-time monitoring of load sharing and reporting of police and periodic adjustment. The experimental results show that the designed dynamic traffic balancing strategy can effectively reduce the PON network blocking rate and improve bandwidth utilization.

Dynamic Traffic Balancing Strategy Experiment on Optical Line Terminal of 40 G Coherent Passive Optical Network

2015 ◽  
Vol 42 (4) ◽  
pp. 0405007
Author(s):  
秦攀科 Qin Panke ◽  
王立芊 Wang Liqian ◽  
马骏 Ma Jun ◽  
陈雪 Chen Xue ◽  
王磊 Wang Lei
Keyword(s):  
Optical Network ◽  
Passive Optical Network ◽  
Dynamic Traffic ◽  
Optical Line Terminal ◽  
Traffic Balancing ◽  
Optical Line

scholarly journals A novel optical network model for network burden release and congestion reduction based on passive optical network

2018 ◽  
Vol 14 (10) ◽  
pp. 155014771880765
Author(s):  
He Li ◽  
Hongxi Yin ◽  
Shanshan Lin
Keyword(s):  
Data Storage ◽  
Network Structure ◽  
Network Performance ◽  
Optical Network ◽  
Clustering Coefficient ◽  
Passive Optical Network ◽  
Metropolitan Area Networks ◽  
Performance Simulation ◽  
Storage Devices ◽  
Optical Line

In this article, a new optical network structure coping with network congestion is proposed, which is based on passive optical network, and adopts data storage devices coupled with optical line terminal to release network burden. It is shown by our network performance simulation that this network has many merits such as free-scale, fewer connections, larger clustering coefficient, and smaller average shortest path length in comparison to the passive optical network. The novel network structure can replace the far-end service connections with the near-end ones, reduce congestions in an optical network, and, furthermore, relieve traffic burden in optical backbone and metropolitan area networks.

Realization of RIP Module on GPON OLT System

2014 ◽  
Vol 989-994 ◽  
pp. 4962-4965
Author(s):  
Wen Hui Kang ◽  
Xiao Hang Huang ◽  
Shi Cai Zhang ◽  
Xiao Yuan Zhang
Keyword(s):  
Optical Network ◽  
Passive Optical Network ◽  
Network Layer ◽  
Broadband Network ◽  
Ip Routing ◽  
Optical Line

As networks to be flattened, a direction has been put forward clearly by Telecom operators that Optical Line Terminals (OLT) of Gigabit Passive Optical Network (GPON) should become aggregation [1] OLTs, which makes them to work as both aggregation switches and edge access devices. According to this requirement, a scheme that realizes Routing [2] Information Protocol (RIP) on GPON OLT is put forward after deep analysis of GPON system [3] [4] [5] and RIP. Results shows that IP routing on GPON OLT is realized, which allows OLTs to work on the network layer, at the same time simplifies the broadband network levels and increases the reliability of the network.

scholarly journals Passive Optical Network Survivability: Protection, Detection and Restoration

2015 ◽  
Vol 1 (1) ◽  
pp. 128-142
Author(s):  
Huda Saleh Abbas ◽  
Mark A Gregory
Keyword(s):  
Performance Metrics ◽  
Network Reliability ◽  
Optical Network ◽  
Access Network ◽  
Passive Optical Network ◽  
Network Availability ◽  
Restoration Time ◽  
Optical Line ◽  
Fiber Link

Passive optical network (PON) technologies have received increasing attention as demand for fibre access networks has grown. Enhancing fibre access network reliability provides lower operational costs, and improves customer satisfaction. This paper discusses PON survivability including protection schemes for the fiber link and the Optical Line Terminal (OLT), the exciting monitoring techniques of the fiber link, and the effect of reducing the restoration time on the network availability. The main contribution of this study is to provide two protection schemes namely OLT-only-protected and OLT-and-ring protected. The proposed schemes are designed to handle instances of single failure affecting all customers in the network. This work considers three key performance metrics- Failure Impact Robustness (FIR), cost, and availability. The objective of the proposed protection architectures is to guarantee high quality of service at low costs by protecting critical network elements such as OLT and fiber ring. The proposed architectures have been compared with other well-known protection schemes. The results postulate that OLT-and-ring protected approach has 99.993% availability with a 0.09% increase in cost compared to the ring-only protection architecture.

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