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This paper aims to discuss the design of the 5G air interface, focusing on waveforms, multiple access, and frame structure.

August 1, 2014

5G air interface design based on Universal Filtered (UF-)OFDM

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Randomized trial explores 5G air interface design, highlighting a new approach using UF-OFDM to meet system requirements.

This paper aims to discuss the design of the 5G air interface, focusing on waveforms, multiple access, and frame structure.
Discussed the limitations of CP-OFDM and the advantages of UF-OFDM for 5G systems.
Introduced a unified frame structure to accommodate diverse traffic types and user separation methods.
Analyzed the integration of multiple signal layers, including IDMA, for enhanced capacity and robustness.
UF-OFDM fits better to 5G system requirements compared to CP-OFDM and FBMC based on spectral properties.
The unified frame structure allows for improved management of heterogeneous traffic types.
Enhancements in crosstalk robustness and capacity exploitation were observed with the proposed multiple access strategies.

Wild et al. (2014) studied this question.

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