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
Kertas kerja ini mencadangkan skim penghantaran blok berbilang kod menggunakan modulasi hierarki (HM) untuk saluran penyiaran dalam pautan bawah pembahagian frekuensi ortogonal (OFDM). Kami menyiasat prestasi purata kadar ralat bit (BER) dua lapisan HM menggunakan modulasi amplitud 16 kuadratur (QAM) dan tiga lapisan HM menggunakan 64QAM dalam saluran pudar Rayleigh berbilang laluan. Dalam penghantaran blok berbilang kod menggunakan HM, bit maklumat asas dinyahkodkan dan dinyahkodkan kepada semua pengguna dalam sel yang memenuhi keperluan kadar ralat bit (BER). Oleh itu, kami menyiasat buruj QAM yang tidak seragam untuk mencari satu yang menyekat kehilangan dalam BER purata bit maklumat asas untuk HM ke tahap yang rendah berbanding dengan yang menggunakan buruj asal di mana hanya bit maklumat asas dihantar sambil meminimumkan pada masa yang sama kehilangan purata BER bagi bit maklumat sekunder dan tertiari daripada buruj asal di mana bit maklumat bagi lapisan masing-masing dihantar secara bersendirian. Berdasarkan persamaan kehilangan laluan dalam senario Makro Bandar dan Makro Luar Bandar, kami juga menyiasat jarak maksimum dari stesen pangkalan (BS) untuk bit maklumat setiap lapisan untuk mencapai nisbah kuasa isyarat-ke-bunyi purata yang diperlukan (SNR). ) yang mencapai purata BER sebanyak 10-3.
Daiki MITAMURA
Tokyo City University
Mamoru SAWAHASHI
Tokyo City University
Yoshihisa KISHIYAMA
Space Compass Corporation
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Salinan
Daiki MITAMURA, Mamoru SAWAHASHI, Yoshihisa KISHIYAMA, "Performance of Broadcast Channel Using Hierarchical Modulation in OFDM Downlink" in IEICE TRANSACTIONS on Communications,
vol. E106-B, no. 9, pp. 844-854, September 2023, doi: 10.1587/transcom.2022EBP3181.
Abstract: This paper proposes a multiple code block transmission scheme using hierarchical modulation (HM) for a broadcast channel in the orthogonal frequency division multiplexing (OFDM) downlink. We investigate the average bit error rate (BER) performance of two-layer HM using 16 quadrature amplitude modulation (QAM) and three-layer HM using 64QAM in multipath Rayleigh fading channels. In multiple code block transmission using HM, the basic information bits are demodulated and decoded to all users within a cell that satisfy the bit error rate (BER) requirement. Hence, we investigate non-uniform QAM constellations to find one that suppresses the loss in the average BER of the basic information bits for HM to a low level compared to that using the original constellation in which only the basic information bits are transmitted while simultaneously minimizing the loss in the average BER of the secondary and tertiary information bits from the original constellations in which the information bits of the respective layers are transmitted alone. Based on the path loss equations in the Urban Macro and Rural Macro scenarios, we also investigate the maximum distance from a base station (BS) for the information bits of each layer to attain the required average received signal-to-noise power ratio (SNR) that achieves the average BER of 10-3.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2022EBP3181/_p
Salinan
@ARTICLE{e106-b_9_844,
author={Daiki MITAMURA, Mamoru SAWAHASHI, Yoshihisa KISHIYAMA, },
journal={IEICE TRANSACTIONS on Communications},
title={Performance of Broadcast Channel Using Hierarchical Modulation in OFDM Downlink},
year={2023},
volume={E106-B},
number={9},
pages={844-854},
abstract={This paper proposes a multiple code block transmission scheme using hierarchical modulation (HM) for a broadcast channel in the orthogonal frequency division multiplexing (OFDM) downlink. We investigate the average bit error rate (BER) performance of two-layer HM using 16 quadrature amplitude modulation (QAM) and three-layer HM using 64QAM in multipath Rayleigh fading channels. In multiple code block transmission using HM, the basic information bits are demodulated and decoded to all users within a cell that satisfy the bit error rate (BER) requirement. Hence, we investigate non-uniform QAM constellations to find one that suppresses the loss in the average BER of the basic information bits for HM to a low level compared to that using the original constellation in which only the basic information bits are transmitted while simultaneously minimizing the loss in the average BER of the secondary and tertiary information bits from the original constellations in which the information bits of the respective layers are transmitted alone. Based on the path loss equations in the Urban Macro and Rural Macro scenarios, we also investigate the maximum distance from a base station (BS) for the information bits of each layer to attain the required average received signal-to-noise power ratio (SNR) that achieves the average BER of 10-3.},
keywords={},
doi={10.1587/transcom.2022EBP3181},
ISSN={1745-1345},
month={September},}
Salinan
TY - JOUR
TI - Performance of Broadcast Channel Using Hierarchical Modulation in OFDM Downlink
T2 - IEICE TRANSACTIONS on Communications
SP - 844
EP - 854
AU - Daiki MITAMURA
AU - Mamoru SAWAHASHI
AU - Yoshihisa KISHIYAMA
PY - 2023
DO - 10.1587/transcom.2022EBP3181
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E106-B
IS - 9
JA - IEICE TRANSACTIONS on Communications
Y1 - September 2023
AB - This paper proposes a multiple code block transmission scheme using hierarchical modulation (HM) for a broadcast channel in the orthogonal frequency division multiplexing (OFDM) downlink. We investigate the average bit error rate (BER) performance of two-layer HM using 16 quadrature amplitude modulation (QAM) and three-layer HM using 64QAM in multipath Rayleigh fading channels. In multiple code block transmission using HM, the basic information bits are demodulated and decoded to all users within a cell that satisfy the bit error rate (BER) requirement. Hence, we investigate non-uniform QAM constellations to find one that suppresses the loss in the average BER of the basic information bits for HM to a low level compared to that using the original constellation in which only the basic information bits are transmitted while simultaneously minimizing the loss in the average BER of the secondary and tertiary information bits from the original constellations in which the information bits of the respective layers are transmitted alone. Based on the path loss equations in the Urban Macro and Rural Macro scenarios, we also investigate the maximum distance from a base station (BS) for the information bits of each layer to attain the required average received signal-to-noise power ratio (SNR) that achieves the average BER of 10-3.
ER -