scholarly journals Network Slicing Over A Packet/Optical Network For Vertical Applications Applied To Multimedia Real-Time Communications

2019 ◽  
Author(s):  
Pol Alemany ◽  
Juan L. de la Cruz ◽  
Ana Pol ◽  
Anton Roman ◽  
Panagiotis Trakadas ◽  
...  
Keyword(s):  
Real Time ◽  
Optical Network ◽  
Network Slicing

A Shared Path Protection Mechanism Based on Delay Constraint in the Optical Network

2013 ◽  
Vol 427-429 ◽  
pp. 2237-2244
Author(s):  
Jie Li ◽  
Xing Wei Wang ◽  
Min Huang
Keyword(s):  
Real Time ◽  
Optical Network ◽  
Propagation Delay ◽  
Wavelength Assignment ◽  
Delay Constraint ◽  
Protection Mechanism ◽  
Path Protection ◽  
Important Concern ◽  
Efficient Protection ◽  
Shared Path Protection

Survivability is an important concern in the optical network. In order to offer an effective and efficient protection mechanism that meeting both delay constraint and availability guarantees for real-time services in the optical network, a shared path protection mechanism based on delay constraint is proposed in this paper. Thinking of the processing delay and the propagation delay as main factors which have great effect on the delay of real-time services, the mechanism designs the routing and wavelength assignment schemes for the working path and the protection path. Simulation results show that the proposed mechanism is both feasible and effective.

scholarly journals Real-time maintenance of latency-sensitive 5G services through network slicing

2020 ◽  
Vol 40 (3) ◽  
pp. 221-232
Author(s):  
Rafael Montero ◽  
Fernando Agraz ◽  
Albert Pagès ◽  
Salvatore Spadaro
Keyword(s):  
Real Time ◽  
Network Slicing

Real‐time demonstration of 30 Gbit/s hierarchical star 8‐QAM passive optical network employing fractionally‐spaced signed‐error radius directed equalisation

2016 ◽  
Vol 52 (7) ◽  
pp. 544-546 ◽  
Author(s):  
S.‐Y Kim ◽  
N. Iiyama ◽  
J.‐i. Kani ◽  
R. Koma ◽  
T. Suzuki ◽  
...  
Keyword(s):  
Real Time ◽  
Optical Network ◽  
Passive Optical Network

scholarly journals Performance evaluation of comprehensive bandwidth utilization for 10-gigabit passive optical network

2019 ◽  
Vol 8 (3) ◽  
pp. 1053-1058
Author(s):  
N. A. Ismail ◽  
Sevia Mahdaliza Idrus ◽  
R. A. Butt ◽  
F. Iqbal ◽  
A. M. Zin ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Real Time ◽  
Bandwidth Allocation ◽  
Optical Network ◽  
Passive Optical Network ◽  
Bandwidth Utilization ◽  
Traffic Class ◽  
Real Time Traffic ◽  
Traffic Generator ◽  
And Performance

Bandwidth allocation during upstream transmission is crucial to determine the efficiency and performance of a XG-PON. For XG-PON, bandwidth assignment is done based on T-CONT which represents a traffic class as per ITU recommendation. DBA scheme used in this paper is based on CBU to assign bandwidth to ONUs based on the T-CONT supporting QoS as per SLA. In this paper, CATV traffic is used as traffic generator which used for generation of Ethernet frames and results showed expected trend of mean upstream delay for traffic class T2, T3 and T4 as compared to recommended value which is below 1.5ms. These results prove that CBU can also be implemented on real time traffic.

Field Demonstration of Real-time Optical Network Diagnosis Using Deep Neural Network and Telemetry

2019 ◽  
Author(s):  
Takafumi Tanaka ◽  
Seiki Kuwabara ◽  
Hideki Nishizawa ◽  
Tetsuro Inui ◽  
Shoukei Kobayashi ◽  
...  
Keyword(s):  
Neural Network ◽  
Real Time ◽  
Deep Neural Network ◽  
Optical Network ◽  
Network Diagnosis

Research of a Variable Rate Real-Time Optical OFDM-PON Access System Based on Oversampling

2014 ◽  
Vol 687-691 ◽  
pp. 4033-4036
Author(s):  
Yue Qi Shi ◽  
Li Jia Zhang ◽  
Bo Liu ◽  
Qi Zhang ◽  
Yong Jun Wang ◽  
...  
Keyword(s):  
Real Time ◽  
Orthogonal Frequency Division Multiplexing ◽  
Optical Network ◽  
Passive Optical Network ◽  
Maximum Effect ◽  
Variable Rate ◽  
Access System ◽  
Signal Processing Method ◽  
Optical Ofdm ◽  
Ofdm Signals

This paper studies a variable rate optical Orthogonal Frequency Division Multiplexing Passive Optical Network (OFDM-PON) real-time access system model, using the signal processing method of oversampling. The basic principle of the model is that the access system uses different oversampling rates according to the allocated bandwidth to different Optical Network Units (ONUs), ensuring that the entire system can utilize the existing hardware conditions to maximum effect. The proposed system uses Xilinx V5 FPGA to generate real-time OFDM signals. MATLAB software is used to recover the signals and calculate the bit error rate (BER). The simulation results are presented and analyzed to verify the performance of the system.

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