New core and spectrum balancing algorithms for space division multiplexed elastic optical networks

Abstract

This paper proposes two new algorithms for core and spectrum allocation in Elastic Optical Networks with Space Division Multiplexing. In order to avoid the effect of inter-core crosstalk, a Core Balancing Algorithm (CBA) is proposed for core allocation, and a Spectrum Balancing Algorithm (SBA) for spectral allocation. Such algorithms prove to be efficient in terms of circuit blocking probability and blocked data ratio. They achieve at least 55.7% gain in terms of circuit blocking probability and 41.1% gain in terms of blocked data ratio when compared to other evaluated algorithms. It is shown that the proposed algorithms achieve low computational cost and higher energy efficiency than other similar algorithms.