A proposed preamble based channel estimation method for FBMC in 5G wireless channels
| Autor: | Mohammed A. AboulDahab, Radwa A. Roshdy, Mohammed M. Fouad |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Computer science
Orthogonal frequency-division multiplexing ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS 05 social sciences 050801 communication & media studies 020206 networking & telecommunications Data_CODINGANDINFORMATIONTHEORY 02 engineering and technology Filter bank Interference (wave propagation) Subcarrier symbols.namesake 0508 media and communications Additive white Gaussian noise 0202 electrical engineering electronic engineering information engineering symbols Bit error rate Electronic engineering Multipath propagation Communication channel |
| Zdroj: | 2018 35th National Radio Science Conference (NRSC). |
| DOI: | 10.1109/nrsc.2018.8354382 |
| Popis: | Filter bank multicarrier (FBMC) is a strong waveform candidate for 5G instead of OFDM. However, FBMC is more sensitive to intrinsic interference which is resulting due to the orthogonality of the subcarrier functions in the real field only. This prevents the current channel estimation (CE) methods of OFDM from being applied to FBMC. A novel interference approximation method (IAM) is proposed in this paper relying on approximating the intrinsic interference from the neighboring pilots to improve CE performance besides simplifying its processing. The proposed IAM method uses pseudo pilots with magnitude larger than other conventional IAM methods. The proposed IAM method is compared with other conventional methods via different types of outdoors and indoors multipath fading channels including IEEE 802.22, IEEE 802.11, Rayleigh and AWGN. Simulation results demonstrate that the proposed IAM method achieves a lower bit error rate (BER) and peak-to-average power ratio (PAPR) under the aforementioned channel models. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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