A framework using cluster-based hybrid network architecture for collaborative virtual surgery

2009 ◽  
Vol 96 (3) ◽  
pp. 205-216 ◽  
Author(s):  
Jing Qin ◽  
Kup-Sze Choi ◽  
Wai-Sang Poon ◽  
Pheng-Ann Heng
Keyword(s):  
Network Architecture ◽  
Hybrid Network ◽  
Virtual Surgery

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.

A SDN-based wired/wireless hybrid network architecture of cloud data center

2021 ◽  
Author(s):  
Tao Jing ◽  
Liu Shidong ◽  
Liu Chuan ◽  
Bu Xiande ◽  
Zhang Gang
Keyword(s):  
Data Center ◽  
Network Architecture ◽  
Hybrid Network ◽  
Cloud Data Center ◽  
Cloud Data

scholarly journals MCDM-ECP: Multi Criteria Decision Making Method for Emergency Communication Protocol in Disaster Area Wireless Network

2018 ◽  
Vol 8 (7) ◽  
pp. 1165 ◽  
Author(s):  
Xiaoming Wang ◽  
Demin Li ◽  
Xiaolu Zhang ◽  
Yongsheng Cao
Keyword(s):  
Decision Making ◽  
Network Architecture ◽  
Communication Protocol ◽  
Hybrid Network ◽  
Multi Criteria Decision Making ◽  
The Novel ◽  
Emergency Communication ◽  
Analytic Hierarchy ◽  
Disaster Area ◽  
Order Preference

Disaster Area Wireless Networks (DAWNs) are widely deployed in natural or man-made disaster scenes, since the communication infrastructure may be completely destroyed by the disaster. This paper proposes a hybrid network architecture for DAWNs due to the mobility of first responders and refugees. Based on the link characterization of DAWNs, we choose four essential criteria and propose a multi-criteria decision-making method for emergency communication protocol (MCDM-ECP), which utilizes the analytic hierarchy process (AHP) method and Technique for Order Preference by Similarity to an Ideal Solution (TOPSIS) method to find the optimal next-hop node in DAWNs. Routing discovery and routing maintenance processes are included in the novel protocol. The simulation results show that MCDM-ECP performs better than other classical protocols both in energy consumption and packet received rate (PRR) for long-term emergency communications.

Design of Optoelectronic Hybrid Switching High Performance Computing Internet

2021 ◽  
Vol 16 (1) ◽  
pp. 104-113
Author(s):  
Erying Shi
Keyword(s):  
Network Architecture ◽  
High Performance ◽  
Packet Switching ◽  
Network Capacity ◽  
Hybrid Network ◽  
Switching Network ◽  
Wavelength Routing ◽  
Intelligent Node ◽  
Optical Wavelength ◽  
Optical Circuit

Optoelectronic hybrid network technology is mixed with pure electric packet switching network, which can improve network capacity and reduce power consumption. However, the long configuration time and complex management of optical circuit switch affect the performance of optoelectronic hybrid network. Therefore, a new optoelectronic hybrid network architecture (BET) is designed. The network architecture consists of Ethernet electric packet switching network and optical wavelength routing network. The signal receiving and dispatching of optical routing network is realized by circular arrayed waveguide grating router. Based on the characteristics of wavelength cycling routing, there is no need to adjust the routing of optical signals to the destination port, that is, there is no need to configure the optical wavelength routing network. At the same time, an intelligent node dynamic reconfiguration (RG) algorithm is designed to improve the resource utilization of optical nodes. In this method, the network link utilization, cache occupancy, and network load are taken into account to adjust the distribution of optical nodes in the optoelectronic hybrid network. In the process of the experiment, by changing the message length, it is found that the optical wavelength routing network can achieve large capacity and new-type transmission and effectively reduce the delay at the same time; on the optoelectronic hybrid network, with the help of Hadoop platform, distributed cluster is built and used to transmit an XML data encoding (ED code), solve the finite state transducers (FST) and encode them. Compared with the traditional electric packet switching network, the transmission delay of ED code is greatly reduced after the introduction of optical circuit switch, and the efficiency of FST solution and coding calculation is improved by at least 30%.

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