Abstract
5G mobile communication provides various services like enormous device connectivity, huge capacity, and reliable low-latency services other than ultra-high-speed data. To fulfill these requirements of 5G, one of the basic challenges over the existing orthogonal frequency division multiplexing (OFDM) is the design of a novel waveform. Besides the simplicity in implementation and Multiple-In Multiple-Out (MIMO) support, the candidate waveform needs to preserve the following two vital features: low out-of-band emission and relaxation in need for synchronization for achieving overall design requirements of 5G. In this article, an ultra-reliable, spectral efficient waveform called hybrid frequency and quadrature amplitude modulation-based filtered OFDM (HFQAM-FOFDM) is proposed to fulfill the above requirements. This article explores the Bit Error Rate (BER) of the proposed model over the additive white Gaussian noise (AWGN) channel and also presents the BER of hybrid frequency and quadrate amplitude modulation (HFQAM) based OFDM, QAM-based FOFDM, QAM-based OFDM. From the results, it can be observed that the proposed HFQAM-FOFDM scheme is superior to HFQAM-based OFDM, QAM-FOFDM, QAM-OFDM in terms of BER.
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