Channel estimation with scattered pilots in GFDM with multiple subcarrier bandwidths
| Autor: | Yuka Enjoji, Kusashima Naoki, Ryo Sawai, Yuta Akai, Ryota Kimura, Yukitoshi Sanada, Hiroki Matsuda |
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| Rok vydání: | 2017 |
| Předmět: |
Computer science
Orthogonal frequency-division multiplexing ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS 05 social sciences Bandwidth (signal processing) 050801 communication & media studies 020206 networking & telecommunications Data_CODINGANDINFORMATIONTHEORY 02 engineering and technology Interference (wave propagation) Subcarrier 0508 media and communications 0202 electrical engineering electronic engineering information engineering Bit error rate Electronic engineering Communication channel Phase-shift keying |
| Zdroj: | PIMRC |
| DOI: | 10.1109/pimrc.2017.8292312 |
| Popis: | This paper proposes a channel estimation scheme with scattered pilots in generalized frequency division multiplexing (GFDM) with multiple subcarrier bandwidths. In the proposed scheme, the pilot symbols are assigned to narrow bandwidth subcarriers. Thus, it is possible to avoid inter-subsymbol interference that is inevitable in GFDM with unified bandwidth subcarriers. On a GSM-TU channel, the mean square error (MSE) of the proposed GFDM is equivalent to that of the OFDM and bit error rate (BER) performance for QPSK symbols is about 1dB better than that of the conventional GFDM at a BER of 10−3. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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