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A comparative path establishment study on routing performance of MLR WDM optical networks
Author(s) -
Boztok Algin Gul,
Tunali Emrullah Turhan
Publication year - 2019
Publication title -
international journal of communication systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 1074-5351
DOI - 10.1002/dac.3866
Subject(s) - computer science , backup , routing and wavelength assignment , blocking (statistics) , computer network , wavelength division multiplexing , path protection , routing (electronic design automation) , path (computing) , hop (telecommunications) , distributed computing , wavelength , physics , optoelectronics , database
Summary In this paper, we investigate the effect of path establishment method priorities over routing performance in mixed line rate (MLR) wavelength division multiplexed (WDM) optical networks. The survivable routing with rate and wavelength assignment (SRRWA) problem is presented and an efficient shared backup path protection solution is proposed. We prepared detailed simulation scenarios with all possible prioritizations and observed their performances. The simulation results show that assigning higher priority to single hop methods as compared with multi‐hop methods yields better performance. In both methods, it has been observed that assigning higher priority to grooming reduces the communication cost and the traffic blocking ratio while enhancing the resource utilization.