Error Rate Analysis for Coded Multicarrier Systems over Quasi-Static Fading Channels

TL;DR

This paper introduces two analytical methods to evaluate the error performance of coded multicarrier systems, like OFDM for UWB, over quasi-static fading channels with non-ideal interleaving, aiding in system reliability assessment.

Contribution

It proposes novel outage and average performance approximation techniques for coded multicarrier systems over frequency-selective fading channels, applicable to systems using QAM and convolutional coding.

Findings

Methods effectively estimate outage performance.

Methods accurately predict average system performance.

Application demonstrated on UWB OFDM systems.

Abstract

This paper presents two methods for approximating the performance of coded multicarrier systems operating over frequency-selective, quasi-static fading channels with non-ideal interleaving. The first method is based on approximating the performance of the system over each realization of the channel, and is suitable for obtaining the outage performance of this type of system. The second method is based on knowledge of the correlation matrix of the frequency-domain channel gains and can be used to directly obtain the average performance. Both of the methods are applicable for convolutionally-coded interleaved systems employing Quadrature Amplitude Modulation (QAM). As examples, both methods are used to study the performance of the Multiband Orthogonal Frequency Division Multiplexing (OFDM) proposal for high data-rate Ultra-Wideband (UWB) communication.