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Fuhrwerk, Martin [VerfasserIn]; Moghaddamnia, Sanam [VerfasserIn]; Peissig, Jürgen [VerfasserIn]

Scattered Pilot-Based Channel Estimation for Channel Adaptive FBMC-OQAM Systems - [accepted Version]

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  • Medientyp: Sonstige Veröffentlichung; E-Artikel
  • Titel: Scattered Pilot-Based Channel Estimation for Channel Adaptive FBMC-OQAM Systems
  • Beteiligte: Fuhrwerk, Martin [VerfasserIn]; Moghaddamnia, Sanam [VerfasserIn]; Peissig, Jürgen [VerfasserIn]
  • Erschienen: Piscataway, NJ : Institute of Electrical and Electronics Engineers Inc., 2017
  • Erschienen in: IEEE Transactions on Wireless Communications 16 (2017), Nr. 3
  • Ausgabe: accepted Version
  • Sprache: Englisch
  • DOI: https://doi.org/10.15488/1667; https://doi.org/10.1109/TWC.2017.2651806
  • ISSN: 1536-1276
  • Schlagwörter: Channel adaptive ; Scattered-pilot ; Adaptive modulation ; Quadrature amplitude modulation ; Radio broadcasting ; scattered pilots ; FBMC ; Degrees of freedom (mechanics) ; Matched filters ; Error statistics ; interference mitigation ; Mobile telecommunication systems ; Fading channels ; channel estimation ; Interference suppression ; intrinsic interference ; offset-QAMOFDM/ FBMC-OQAM ; Modulation ; Bit error rate ; Errors ; channel adaptive systems ; Cams
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  • Beschreibung: Shaping the pulse of FilterBank MultiCarrier with Offset Quadrature Amplitude Modulation subcarrier modulation (FBMC-OQAM) systems offers a new degree of freedom for the design of mobile communication systems. In previous studies, we evaluated the gains arising from the application of Prototype Filter Functions (PFFs) and subcarrier spacing matched to the delay and Doppler spreads of doubly dispersive channels. In this paper, we investigate the impact of having imperfect channel knowledge at the receiver on the performance of Channel Adaptive Modulation (CAM) in terms of channel estimation errors and Bit Error Rate (BER). To this end, the channel estimation error for two different interference mitigation schemes proposed in the literature is derived analytically and its influence on the BER performance is analyzed for practical channel scenarios. The results show that FBMC-OQAM systems utilizing CAM and scattered pilot-based channel estimation provide a significant performance gain compared with the current one system design for a variety of channel scenarios ("one-fits-all") approach. Additionally, we verified that the often used assumption of a flat channel in the direct neighborhood of a pilot symbol is not valid for practical scenarios. © 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
  • Zugangsstatus: Freier Zugang