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A RMSA algorithm for semi-filterless optical networks based on minimum resource consumption and spectrum fragmentation.
- Source :
-
Optical Fiber Technology . Dec2023, Vol. 81, pN.PAG-N.PAG. 1p. - Publication Year :
- 2023
-
Abstract
- Semi-filterless optical networks (semi-FONs), a novel passive wide area network (WAN) solution, have attracted considerable attention. This paper investigates the dynamic routing, modulation and spectrum assignment (RMSA) problem in semi-FONs, where requests may propagate on unnecessary links due to the broadcast characteristics of semi-FONs, resulting in wastage of spectrum resources. Moreover, the dynamically setup and torn down of requests can lead to significant spectrum fragments. To address these issues, this paper studies semi-FONs based on two metrics: resource consumption M and fragmentation degree N. Resource consumption M refers to reducing spectrum wastage caused by broadcasting and establishing requests using minimal resources, while fragmentation degree N refers to the situation where the remaining available resources after establishing a request are more concentrated. Based on these metrics, we propose the Minimum Resource Consumption and Fragmentation Degree (Min-RCF) algorithm. We conduct simulation experiments on the German-Net and China's Henan-Net network topologies, and the results demonstrate that the proposed Min-RCF algorithm achieves lower blocking probability and spectrum waste rate than the compared algorithms. • In the routing phase, resource consumption and spectrum wastage are reduced. • In the spectrum assignment phase, the spectrum fragmentation is reduced. • Reduced blocking probability and spectrum waste rate in the semi-filterless network. [ABSTRACT FROM AUTHOR]
- Subjects :
- *WIDE area networks
*ALGORITHMS
*FRAGMENTED landscapes
Subjects
Details
- Language :
- English
- ISSN :
- 10685200
- Volume :
- 81
- Database :
- Academic Search Index
- Journal :
- Optical Fiber Technology
- Publication Type :
- Academic Journal
- Accession number :
- 173725973
- Full Text :
- https://doi.org/10.1016/j.yofte.2023.103483