A WDM network architecture with multiple receivers and a synchronous transmission protocol with constraint of data channel collision

2003 ◽  
Vol 38 (2) ◽  
pp. 104-108 ◽  
Author(s):  
Ioannis E. Pountourakis
Keyword(s):  
Network Architecture ◽  
Transmission Protocol ◽  
Data Channel ◽  
Wdm Network ◽  
Multiple Receivers

scholarly journals Collaborative Virtual Surgery: Techniques, Applications and Challenges

2010 ◽  
Vol 9 (3) ◽  
pp. 1-7 ◽  
Author(s):  
Jing Qin ◽  
Kup-Sze Choi ◽  
Wai-Man Pang ◽  
Zhang Yi ◽  
Pheng-Ann Heng
Keyword(s):  
Medical Education ◽  
Network Architecture ◽  
Schedule Algorithm ◽  
User Interaction ◽  
Virtual Surgery ◽  
Transmission Protocol ◽  
Distributed Environments ◽  
Considerable Effort ◽  
Surgical Simulators ◽  
Haptic Communication

While considerable effort has been dedicated to improve medical education with virtual reality based surgical simulators, relatively little attention is given to the simulation of the collaborative procedures in distributed environments. In this paper, we first present a literature review of techniques involved in the development of collaborative simulators, including network architecture, transmission protocol, collaboration mechanism, schedule algorithm, collaborative user-interaction feature and haptic communication. We introduce the details of each technique and discuss the advantages and drawbacks. Then, we review some of the existing applications to illustrate how to apply these techniques to implement an efficient and robust collaborative simulator. Finally, we discuss the challenges that need to be addressed in the future.

scholarly journals A Multi-Objective Optimization Algorithm for Routing Path Selection and Wavelength Allocation for Dynamic WDM Network using MO-HLO

2021 ◽  
Vol 10 (5) ◽  
pp. 111-118
Author(s):  
Hamsaveni M ◽  
Savita Choudhary
Keyword(s):  
Shortest Path ◽  
Optimization Algorithm ◽  
Network Architecture ◽  
Time Instant ◽  
Path Selection ◽  
Packet Transmission ◽  
Multi Objective Optimization ◽  
Multi Objective ◽  
Wdm Network ◽  
Wavelength Allocation

The data transmission system in the optical WDM network increases the speed of packet transmission by the wavelength of light beams . The Selection of the wavelength and the shortest path to transmit the packets form source to destination is a challenge in a large network architecture. To solve these two problems, the optimization model must handle both the objectives. In this paper we are proposing a novel multi-objective optimization algorithm to solve both the problem of wavelength allocation and shortest path identification in a WDM network. This can be achieved by the enhanced model of Multi-Objective Hunger Locust Optimization algorithm (MO-HLO). In this, it analyse traffic level in a network path and the availability of wavelength present at each time instant. The proposed system retrieves the parameters of network architecture and with the weight value of dynamic traffic occur in the routing path. Among these data, the optimization selects the best among overall feature set of the WDM arrangement. The MO-HLO algorithm extracts the combination of each attribute to form the cluster that segregates the routing path along with the traffic range. From the fitness of the objective function of MO-HLO, the best routing path and the availability of wavelength for a node can be analysed at each time instant.

PHONAV-a photonic WDM network architecture for next generation avionics systems

1999 ◽  
Author(s):  
R.D. Gardner ◽  
I. Andonovic ◽  
D.K. Hunter ◽  
A.J. McLaughlin ◽  
J.S. Aitchison ◽  
...  
Keyword(s):  
Network Architecture ◽  
Next Generation ◽  
Wdm Network

Science DMZ network architecture deployment and performance evaluation to large scaled data transfer efficiency

2018 ◽  
Vol 7 (3.3) ◽  
pp. 191
Author(s):  
Jong Seon Park ◽  
Seung Hae Kim ◽  
Min Ki Noh ◽  
Bu Seung Cho
Keyword(s):  
Network Architecture ◽  
Large Scale ◽  
Performance Test ◽  
Data Transfer ◽  
High Energy ◽  
Transfer Efficiency ◽  
Transmission Protocol ◽  
Transfer Performance ◽  
File Transfer ◽  
Network Equipment

Background/Objectives: Recently, it has been great issue to transfer large-scale science dada such as scientific field of high energy physic, astronomical space, super-computing simulation. To solve the transfer issue and to increase transfer efficiency, it needs a multi-dimensional approaches.Methods/Statistical analysis: To improve the transfer performance, approaches from the perspective of components such as network equipment, transmission protocol, and transmission application have been suggested. Effort to TCP congestion control algorithm and parallelism of data transfer channel are representative example to improve performance. However, the solution through the each component has a limitation in maximizing the transmission efficiency.Findings: Science DMZ is a new network architecture that can maximize transfer performance. It maximizes transfer efficiency through approach to all components, such as network equipment, dedicated network path, transfer applications, and local institute firewall policies. With these complicated components, science DMZ network architecture can greatly improve the transfer efficiency. In this paper, we design and construct a science DMZ network architecture between two organizations that utilize supercomputing resources based on KREONET and evaluate the performance.Improvements/Applications: After configuring the experiment environment, we measured network performance through iperf and file transfer performance test through SCP. Experiment result showed around 388% Improvement than that of existing method.  

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