The joint power-domain multiplexing and SSII mitigation scheme for IM DD downstream orthogonal frequency division multiple (OFDM-PON)

Abstract

This paper primarily focuses on power-domain multiplexing in downstream intensity-modulation direct-detection (IMDD) and vestigial side band (VSB) based orthogonal frequency division multiple passive optical network (OFDM-PON). At the transmitter, according to the data’s importance, we utilize superposition coding (SC) by power controlling method which separates data into hierarchical layers and transmits the layers of data in the same frame adaptively. At the receiver, we propose successive interference cancellation (SIC) and subcarrier-to-subcarrier intermixing interference (SSII) mitigation. The simulation results show that the proposed power-domain for OFDM-PON system namely PD-OFDM-PON achieves a set of significant desirable bit error rate (BER) performance when we consider the different power allocation ratio depending on the signal to noise ratio (SNR) in this paper.