Diseño de una ruta DWDM alterna para optimización de tráfico entre Quito y Guayaquil

Abstract

CONDITIONING OF PROJECT PUBLICATION. This Thesis focuses on the design of an alternative DWDM backbone route for the Quito–Guayaquil corridor, where traffic growth and high utilization increase the risk of congestion and service degradation. The objective is to propose a general engineering design for new network sites and an alternative topology that strengthens national ring closure along a northern–coastal path. The hypothesis states that a strategically planned route—supported by proper optical dimensioning and protection concepts—improves resilience and continuity of service by enabling traffic redistribution under fault or peak-demand scenarios. The project was developed by reviewing the current backbone context, defining the proposed topology, selecting representative transmission assumptions (single-mode fiber and coherent 200G DP-QPSK), and estimating the optical link budget per span, considering fixed losses and engineering margin, and the integration of OLA/ROADM elements. The results indicated typical per-hop total losses on the order of ~19–24 dB and showed that the planned amplification strategy can compensate these losses within the assumed constraints. In conclusion, the proposed design is technically feasible and provides a solid baseline for subsequent simulation, validation, and implementation planning. Keywords: DWDM, OTN, alternative route, optical link budget, resilience, ring closure.