scholarly journals XT-considered multiple backup paths and resources shared protection scheme based on ring covers

2021 ◽  
Vol 29 (5) ◽  
pp. 6737
Author(s):  
Shan Yin ◽  
Shijia Guo ◽  
Xiangkai Meng ◽  
Rong Ma ◽  
Bingli Guo ◽  
...  
2017 ◽  
Vol 3 (1) ◽  
pp. 11-18 ◽  
Author(s):  
Nogbou G. Anoh ◽  
Michel Babri ◽  
Ahmed D. Kora ◽  
Roger M. Faye ◽  
Boko Aka ◽  
...  

Author(s):  
Toshiaki Suzuki ◽  
Hiroyuki Kubo ◽  
Hayato Hoshihara ◽  
Taro Ogawa

A packet transport network recovery system based on failure pattern under examination of transmission quality is proposed. Network failures are segmented into one of the three patterns: single failure of a node, failures of multiple nodes, and failures of multiple network areas. The single failure is recovered by a protection scheme. For failures of multiple nodes or multiple areas, recovery is performed by a node-based multiple-backup operation plane scheme or by an area-based multiple-back operation plane scheme, respectively. A unique recovery ID is assigned to each failure pattern and backup paths with the recovery ID are stored in each node. When network failures occur, the network management server determines the type of failure and sends the appropriate recovery ID to the nodes. Then recovery paths are configured. Our proposed system took about 0.5[Formula: see text]s to configure 1000 backup paths after failures were detected, compared to about 4[Formula: see text]s by a conventional scheme. For the examination of data transmission quality, multiple paths that do not share the same link are grouped and configured concurrently. The number of groups is regarded as the performance of the configuration. The performance of the proposed system is about three times faster than a configuration without grouping.


2014 ◽  
Vol 2014 ◽  
pp. 1-5
Author(s):  
Anshu Oberoi ◽  
J. S. Sohal ◽  
R. S. Kaler

We propose novel analytical model of dynamic link cost evaluation in IP over WDM networks. We suggest disjoint path algorithm for the primary and backup path based on wavelength aggregate information, to provide shared backup. We show the optimality of pair selected because of joint optimization of the pair paths. The shareable capacity factor is introduced to establish the effect of load balancing on resources. We compared our simulation results with that of separate protection at connection and showed improvement on resource utilization performance of the network. We also study the blocking probability of proposed scheme.


Author(s):  
Karan S Belsare ◽  
Gajanan D Patil

A low cost and reliable protection scheme has been designed for a three phase induction motor against unbalance voltages, under voltage, over voltage, short circuit and overheating protection. Taking the cost factor into consideration the design has been proposed using microcontroller Atmega32, MOSFETs, relays, small CTs and PTs. However the sensitivity of the protection scheme has been not compromised. The design has been tested online in the laboratory for small motors and the same can be implemented for larger motors by replacing the i-v converters and relays of suitable ratings.


Author(s):  
Mahyar Abasi ◽  
◽  
Ahmad Torabi Farsani ◽  
Arash Rohani ◽  
Arsalan Beigzadeh ◽  
...  

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