2017/01/23 by Quentin Bodinier, Bodinier, Quentin, Faouzi Bader +3
Engineering · #FOS: Computer and information sciences #Information Theory (cs.IT) #Optical Network Technologies #PAPR reduction in OFDM #Power Line Communications and Noise
paper · doi:10.48550/arxiv.1701.06504
openalex publication_date 2017/01/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04
Future 5G networks will serve a variety of applications that will coexist on the same spectral band and geographical area, in an uncoordinated and asynchronous manner. It is widely accepted that using CP-OFDM, the waveform used by most current communication systems, will make it difficult to achieve this paradigm. Especially, CP-OFDM is not adapted for spectral coexistence because of its poor spectral localization. Therefore, it has been widely suggested to use filter bank based multi carrier (FB-MC) waveforms with enhanced spectral localization to replace CP-OFDM. Especially, FB-MC waveforms are expected to facilitate coexistence with legacy CP-OFDM based systems. However, this idea is based on the observation of the PSD of FB-MC waveforms only. In this paper, we demonstrate that this approach is flawed and show what metric should be used to rate interference between FB-MC and CP-OFDM systems. Finally, our results show that using FB-MC waveforms does not facilitate coexistence with CP-OFDM based systems to a high extent.