| Full text | |
| Author(s): |
de Lima, Leandro Alvarez
;
Pavani, Gustavo Sousa
;
Velazquez, R
Total Authors: 3
|
| Document type: | Journal article |
| Source: | 2021 IEEE LATIN-AMERICAN CONFERENCE ON COMMUNICATIONS (LATINCOM 2021); v. N/A, p. 6-pg., 2021-01-01. |
| Abstract | |
To make the use of spectrum more efficient in Elastic Optical Networks (EONs), there is the possibility of using different levels of modulation for each request, which may increase the number of bits per symbol and thus requiring fewer frequency slots for each connection. With the addition of the choice of modulation level to the Routing and Spectrum Allocation problem, the Routing, Modulation, and Spectrum Allocation (RMSA) problem arises. In this work, we propose a fully distributed routing algorithm based on Ant Colony Optimization (ACO) with an improved crankback mechanism to tackle the RMSA problem. Simulations demonstrate that the proposed ACO-based algorithm outperforms the fixed-alternate approach. They also demonstrate that the proposed approach achieves similar levels of bandwidth blocking probability and restorability compared to an adaptive routing algorithm that relies on the OSPF-TE protocol, with much lower levels of control overhead. (AU) | |
| FAPESP's process: | 15/24341-7 - New strategies to confront with the threat of capacity exhaustion |
| Grantee: | Helio Waldman |
| Support Opportunities: | Research Projects - Thematic Grants |