Abstract
Filter bank multicarrier (FBMC) is one of the effective candidates for the fifth generation of wireless communication networks. 5G (5th-generation wireless systems) is accepted as the next major stage of mobile telecommunication technology. The extent of 5G will be expanded mobile broadband services to next-generation automobiles and connected machines. In particular, filter bank multicarrier with offset quadrature amplitude modulation (FBMC/OQAM) is determined as the future generation 5G air interface by researchers recently. Filter bank multicarrier (FBMC) is admitted as one of the alternative technologies for multicarrier modulation. Compared to orthogonal frequency-division multiplexing (OFDM), FBMC has better spectrum shape and supports mobility. Therefore, efficient hardware implementations have highly interested researchers. Cyclic prefix (CP) and guard band are used for orthogonal frequency-division multiplexing (OFDM) and this causes loss of spectral efficiency, but FBMC applications do not need CP and guard band. Due to the fact that FBMC has offset QAM (OQAM) and band-limited filtering features on each subcarrier, the need for CP and guard band is eliminated. In this paper, novel pipelined hardware architecture of the filter design of FBMC/OQAM modulator has been proposed.
Highlights
Ubiquitous connectivity and seamless service delivery in all conditions are expected from next-generation mobile communication systems
Filter bank multicarrier (FBMC)/offset QAM (OQAM) has several times more complex features than orthogonal frequency-division multiplexing (OFDM) when we considered the complexity of computation and hardware
FBMC/OQAM has been heavily studied as a hopeful technique in future wireless communication due to its enhanced robustness to synchronization requirements, higher spectrum efficiency, and better frequency localization compared to cyclic prefix (CP)-OFDM
Summary
Ubiquitous connectivity and seamless service delivery in all conditions are expected from next-generation mobile communication systems. Most of the studied and analysed new communication techniques are often taking into account mainly the quality of the communication link at the algorithmic level This is admitted as one of the main performance indicators, the related hardware and the need for energy efficiencies increase for future mobile technologies. FBMC/OQAM has been heavily studied as a hopeful technique in future wireless communication due to its enhanced robustness to synchronization requirements, higher spectrum efficiency, and better frequency localization compared to CP-OFDM. Channel estimation is of great importance for the success of the information transmission process and is taken into consideration in the studies [17,18,19] In this brief, we propose a novel pipelined lowcomplexity hardware implementation of the FBMC/OQAM modulation; in literature, no hardware design was yet proposed targeting a reduced complexity. We propose to implement and validate PHYDYAS prototype filter that is recently introduced in FBMC-based waveform for 5G mobile communication
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