The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Makalah ini mencadangkan pemultipleksan isyarat rujukan (RS) berasaskan pembahagian masa (TDM) untuk isyarat lebih cepat daripada Nyquist (FTN) menggunakan pemultipleksan pembahagian frekuensi ortogon (OFDM). Kami juga mencadangkan struktur subframe di mana awalan kitaran (CP) dilampirkan pada hanya blok RS berasaskan TDM dan simbol FTN pertama untuk mencapai anggaran yang tepat bagi tindak balas saluran dalam saluran pudar berbilang laluan dengan overhed CP rendah. Keputusan simulasi komputer menunjukkan bahawa kerugian dalam purata yang diperlukan diterima SNR memenuhi kadar ralat blok purata (BLER) sebanyak 10-2 menggunakan pemultipleksan RS berasaskan TDM yang dicadangkan daripada itu dengan anggaran saluran ideal ditindas kepada kira-kira 1.2dB dan 1.7dB untuk QPSK dan 16QAM, masing-masing. Ini dibandingkan apabila nisbah peningkatan kecekapan spektrum daripada CP-OFDM ialah 1.31 dengan kod turbo kadar-1/2. Kami menyimpulkan bahawa pemultipleksan RS berasaskan TDM dengan pemultipleksan CP yang berkaitan adalah berkesan dalam mencapai anggaran saluran yang tepat untuk isyarat FTN menggunakan OFDM.
Tsubasa SHOBUDANI
Tokyo City University
Mamoru SAWAHASHI
Tokyo City University
Yoshihisa KISHIYAMA
NTT DOCOMO INC.
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Salinan
Tsubasa SHOBUDANI, Mamoru SAWAHASHI, Yoshihisa KISHIYAMA, "TDM Based Reference Signal Multiplexing for OFDM Using Faster-than-Nyquist Signaling" in IEICE TRANSACTIONS on Communications,
vol. E104-B, no. 9, pp. 1079-1088, September 2021, doi: 10.1587/transcom.2020FGP0004.
Abstract: This paper proposes time division multiplexing (TDM) based reference signal (RS) multiplexing for faster-than-Nyquist (FTN) signaling using orthogonal frequency division multiplexing (OFDM). We also propose a subframe structure in which a cyclic prefix (CP) is appended to only the TDM based RS block and the first FTN symbol to achieve accurate estimation of the channel response in a multipath fading channel with low CP overhead. Computer simulation results show that the loss in the required average received SNR satisfying the average block error rate (BLER) of 10-2 using the proposed TDM based RS multiplexing from that with ideal channel estimation is suppressed to within approximately 1.2dB and 1.7dB for QPSK and 16QAM, respectively. This is compared to when the improvement ratio of the spectral efficiency from CP-OFDM is 1.31 with the rate-1/2 turbo code. We conclude that the TDM based RS multiplexing with the associated CP multiplexing is effective in achieving accurate channel estimation for FTN signaling using OFDM.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2020FGP0004/_p
Salinan
@ARTICLE{e104-b_9_1079,
author={Tsubasa SHOBUDANI, Mamoru SAWAHASHI, Yoshihisa KISHIYAMA, },
journal={IEICE TRANSACTIONS on Communications},
title={TDM Based Reference Signal Multiplexing for OFDM Using Faster-than-Nyquist Signaling},
year={2021},
volume={E104-B},
number={9},
pages={1079-1088},
abstract={This paper proposes time division multiplexing (TDM) based reference signal (RS) multiplexing for faster-than-Nyquist (FTN) signaling using orthogonal frequency division multiplexing (OFDM). We also propose a subframe structure in which a cyclic prefix (CP) is appended to only the TDM based RS block and the first FTN symbol to achieve accurate estimation of the channel response in a multipath fading channel with low CP overhead. Computer simulation results show that the loss in the required average received SNR satisfying the average block error rate (BLER) of 10-2 using the proposed TDM based RS multiplexing from that with ideal channel estimation is suppressed to within approximately 1.2dB and 1.7dB for QPSK and 16QAM, respectively. This is compared to when the improvement ratio of the spectral efficiency from CP-OFDM is 1.31 with the rate-1/2 turbo code. We conclude that the TDM based RS multiplexing with the associated CP multiplexing is effective in achieving accurate channel estimation for FTN signaling using OFDM.},
keywords={},
doi={10.1587/transcom.2020FGP0004},
ISSN={1745-1345},
month={September},}
Salinan
TY - JOUR
TI - TDM Based Reference Signal Multiplexing for OFDM Using Faster-than-Nyquist Signaling
T2 - IEICE TRANSACTIONS on Communications
SP - 1079
EP - 1088
AU - Tsubasa SHOBUDANI
AU - Mamoru SAWAHASHI
AU - Yoshihisa KISHIYAMA
PY - 2021
DO - 10.1587/transcom.2020FGP0004
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E104-B
IS - 9
JA - IEICE TRANSACTIONS on Communications
Y1 - September 2021
AB - This paper proposes time division multiplexing (TDM) based reference signal (RS) multiplexing for faster-than-Nyquist (FTN) signaling using orthogonal frequency division multiplexing (OFDM). We also propose a subframe structure in which a cyclic prefix (CP) is appended to only the TDM based RS block and the first FTN symbol to achieve accurate estimation of the channel response in a multipath fading channel with low CP overhead. Computer simulation results show that the loss in the required average received SNR satisfying the average block error rate (BLER) of 10-2 using the proposed TDM based RS multiplexing from that with ideal channel estimation is suppressed to within approximately 1.2dB and 1.7dB for QPSK and 16QAM, respectively. This is compared to when the improvement ratio of the spectral efficiency from CP-OFDM is 1.31 with the rate-1/2 turbo code. We conclude that the TDM based RS multiplexing with the associated CP multiplexing is effective in achieving accurate channel estimation for FTN signaling using OFDM.
ER -