Comparación de las señales multiportadora OFDM-IM y OTSM en las redes de acceso PON

Abstract

This paper experimentally compares two proposed multicarrier modulation methods for 6G in a PON network. The results show that OFDM-IM outper- forms OTSM by approximately 13 dBm at an FEC limit of BER = 1 × 10−3, achieving a PRX = −26 dBm. This indicates that OFDM-IM requires less power to achieve equivalent signal quality to OTSM. This difference reflects higher energy efficiency and better receiver sensitivity, which is especially advan- tageous in long-range or power-constrained optical links.