Coexistence of filter banks and CP-OFDM: What are the real gains?

Quentin Bodinier (1) , Faouzi Bader (1) , Jacques Palicot (1)

1 IETR - Institut d'Électronique et des Technologies du numéRique

A coexistence scenario between filter bank (FB) based waveforms and legacy Cyclic Prefix-Orthogonal Frequency Division Multiplexing (CP-OFDM) is studied. It is shown that studies available on that matter use a wrong metric to rate the interference between the coexisting systems. Specifically, it is shown that even well spectrally localized FB waveforms interfere at a high level with incumbent CP-OFDM receivers. The presented results invalidate a number of studies in the literature, which stated that FB based waveforms could be very efficiently used to insert communications in parts of spectrum left free by incumbent legacy CP-OFDM users.

Domains: Engineering Sciences [physics]; Signal and Image processing

Quentin Bodinier, Faouzi Bader, Jacques Palicot. Coexistence of filter banks and CP-OFDM: What are the real gains?. Thirteenth International Symposium on Wireless Communication Systems (ISWCS), Sep 2016, Poznan, Poland. pp.628 - 632, ⟨10.1109/ISWCS.2016.7600980⟩. ⟨hal-01396322⟩