Influence of routing and wavelength assignment algorithms on the blocking probability in wavelength-division-multiplexing all-optical network

2001 ◽  
Author(s):  
Yabin Ye ◽  
Hanyi Zhang ◽  
Yili Guo
2000 ◽  
Vol 185 (4-6) ◽  
pp. 315-320 ◽  
Author(s):  
Yabin Ye ◽  
Hanyi Zhang ◽  
Tao Qin ◽  
Wuju Dai ◽  
Feifei Feng ◽  
...  

2013 ◽  
Vol 9 (2) ◽  
pp. 1055-1062
Author(s):  
Ifrah Amin ◽  
Gulzar Ahmad dar ◽  
Hrdeep singh Saini

Routing and wavelength assignment problem is one of the main problem in optical networks. The foremost problem is the routing problem after which the wavelength assignment is to be decided. In this paper we have proposed a routing strategy for optimization of the performance of the optical network in terms of blocking probability. The strategy proposed is better than the conventional algorithm in terms of blocking. 


2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Neeraj Mohan ◽  
Priyanka Kaushal

AbstractThe routing and wavelength assignment (RWA) schemes play an important role in all computer networks. The performance of a computer network and resource utilization largely depend on the RWA. The demand for higher bandwidth is increasing with each passing day, so more efficient RWA schemes need to be devolved to cater the increasing requirements. RWA becomes more challenging for dynamic traffic as the nature and flow of data are not known in advance. In this paper, a dynamic RWA scheme has been proposed for establishing a path in optical networks. The proposed scheme is based upon dynamic conversion sensing algorithm. It can be applied on a number of different network topologies. The proposed scheme is dynamic in nature, which is significantly useful for dynamic traffic grooming. The proposed scheme has been applied on 14 nodes National Science Foundation Network (NFSNet). Simulation results have shown that the blocking probability of this scheme is very low as compared to the existing schemes. So, the proposed dynamic RWA scheme enhances the network efficiency. It is useful for congestion hit networks. The reduced blocking probability in wavelength division multiplexing optical networks leads to better resource utilization and enhanced performance.


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