Improvement in BER Performance of GFDM-Based 5G Communication System Using New Hybrid Error-Correcting Code

Abstract

In 5G wireless communication system, Generalized frequency division multiplexing (GFDM) is a promising substitute to OFDM that offers improved spectral efficiency and lower PAPR.  However, performance of GFDM based wireless communication system can still be degraded by channel impairments such as noise and fading. The error correction codes are one of the techniques used for improving the performance. Different error correction codes are used for error correction in 4G and 5G communication system. This paper proposes a hybrid error-correcting code (ECC) scheme that combines polar code and convolution code to improve the bit error rate (BER) performance of GFDM compare to conventional ECCs. Simulation results illustrate that the proposed hybrid ECC scheme outperforms traditional error correcting code, in terms of BER performance. The proposed scheme also achieves near-optimal BER performance under various channel conditions.