Routing, Modulation and Spectrum Assignment Algorithm Using Multi-Path Routing and Best-Fit

Elastic Optical Networks (EONs) are a promising optical technology to deal with the ever-increasing traffic and vast number of connected devices next generation Internet, associated paradigms like Internet Things (IoT), Tactile or Industry 4.0, name just few. In this kind network, each circuit lightpath is provisioned by means superchannels variable bandwidth. manner, only necessary bandwidth accommodate demand allocated, improving spectrum usage. When establishing connection, EON control layer determines modulation format be used allocates portion in sequence fibers from source destination node providing user-demanded This known as routing, level assignment (RMSA) problem. work, we firstly review most important contributions that area, then, propose novel RMSA algorithm, multi-path best-fit (MP-BF), which uses split strategy together technique (best-fit), jointly exploit flexibility EONs. A simulation study has been conducted comparing performance EONs when using MP-BF other proposals literature. The results show that, MP-BF, network can increase its terms request blocking ratio supported load, without affecting energy per bit computation time required find solution.