A New Model for Interference Analysis in Asynchronous Multi-Carrier Transmission

TL;DR

This paper introduces a comprehensive model for analyzing interference in asynchronous multi-carrier wireless systems, accounting for multi-path effects, and validates its accuracy through simulations.

Contribution

It presents a novel unified framework for OFDM/FBMC interference analysis in asynchronous environments, including a new interference model considering multi-path effects.

Findings

The proposed model accurately predicts interference in frequency selective fading environments.

Simulation results confirm the model's effectiveness in real-world scenarios.

The framework helps improve interference management in wireless systems.

Abstract

Interference at the radio receiver is a key source of degradation in quality of service of wireless communication systems. This paper presents a unified framework for OFDM/FBMC interference characterization and analysis in asynchronous environment. Multi-user interference is caused by the timing synchronization errors which lead to the destruction of the orthogonality between subcarriers. In this paper, we develop a theoretical analysis of the asynchronous interference considering the multi-path effects on the interference signal. We further propose an accurate model for interference that provides a useful computational tool in order to evaluate the performance of an OFDM/FBMC system in a frequency selective fading environment. Finally, simulation results confirmed the accuracy of the proposed model.