Analysis of Multichannel Signal Transmission using a flexible spectral allocation method in Elastic Optical Networks

A flexible spectral allocation method is proposed and evaluated considering the impact of the number of channels on the required spectral bandwidth. The performance of elastic optical networks (EONs) is examined using a multilevel modulation format and coherent transmission. Network design parameters such as spectral bandwidth and channel symbol error rate (SER) are adopted as metrics for analysis. Transmission of quadrature phase shift-keying (QPSK) signals modulated at 56 and 100 Gbps is simulated and results for B-B, 50 and 200km are discussed.