Constrained RS coding for Low Peak to Average Power Ratio in FBMC -- OQAM Systems

TL;DR

This paper introduces a new coding scheme called Constrained Reed Solomon (CRS) to reduce PAPR in FBMC systems, improving power efficiency while maintaining acceptable BER across different channel models.

Contribution

The paper proposes a novel CRS coding method combined with hybrid coding and companding techniques for PAPR reduction in FBMC/OQAM systems.

Findings

CRS coding significantly reduces PAPR in FBMC systems.

Hybrid coding and companding improve PAPR reduction effectiveness.

The methods maintain acceptable BER across various channel models.

Abstract

Multi-carrier modulation techniques have now become a standard in many communication protocols. Filter bank based multi-carrier (FBMC) generation techniques have been discussed in the literature as a means for overcoming the shortcomings of IFFT/FFT based OFDM system. The Peak to Average Power Ratio (PAPR) is a problem faced by all multi-carrier techniques. This paper discusses the methods for reducing PAPR in a FBMC system while maintaining acceptable Bit Error Rate (BER). A new PAPR minimizing scheme called Constrained Reed Solomon (CRS) coding is proposed. The hybrid techniques using coding and companding are tested for different channel models and is found to yield promising results.