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
3GPP LTE-Advanced telah menarik banyak perhatian baru-baru ini, di mana lebar jalur saluran akan melebihi lebar jalur maksimum LTE, 20 MHz. Dalam LTE, akses berbilang pembahagian frekuensi pembawa tunggal (SC-FDMA) telah diterima sebagai skim capaian pautan atas kerana kelebihan metrik padu (CM) yang sangat rendah. Untuk penghantaran jalur lebar LTE-A, akses berbilang pembawa akan lebih berkesan daripada akses pembawa tunggal untuk menggunakan kepelbagaian berbilang pengguna dan boleh mengekalkan struktur saluran fizikal LTE, di mana maklumat kawalan dihantar pada tepi setiap 20 MHz. Dalam kertas ini, kita membincangkan skim capaian dalam lebar jalur di bawah 20 MHz serta lebih 20 MHz. Dalam kes lebar jalur di bawah 20 MHz, kami mencadangkan skim capaian yang membenarkan peruntukan sumber terputus untuk meningkatkan daya pemprosesan purata sambil mengekalkan daya pemprosesan pengguna pinggir sel, iaitu, DFT-spread-OFDM dengan kawalan pembahagian spektrum (SDC) dan pemilihan adaptif SC -FDMA dan OFDM (SC+OFDM). Bilangan spektrum tak selanjar ditandakan sebagai pembahagian spektrum (SD). Untuk DFT-S-OFDM, kami mentakrifkan parameter SD maks sebagai had atas SD. Kami menilai skim yang dicadangkan kami dalam lebar jalur di bawah 20 MHz dan mendapati bahawa SC+OFDM serta SDC dengan SD maks biasa atau SD maks khusus UE boleh meningkatkan daya tampung purata manakala daya tampung pengguna tepi sel mereka boleh mendekati SC-FDMA. Dalam kes lebar jalur melebihi 20 MHz, kami mempertimbangkan faktor utama untuk memutuskan skim akses yang boleh dilaksanakan untuk mengagregatkan beberapa jalur lebar 20 MHz.
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Salinan
Le LIU, Takamichi INOUE, Kenji KOYANAGI, Yoshikazu KAKURA, "Uplink Access Schemes for LTE-Advanced" in IEICE TRANSACTIONS on Communications,
vol. E92-B, no. 5, pp. 1760-1768, May 2009, doi: 10.1587/transcom.E92.B.1760.
Abstract: The 3GPP LTE-Advanced has been attracting much attention recently, where the channel bandwidth would be beyond the maximum bandwidth of LTE, 20 MHz. In LTE, single carrier-frequency division multiple access (SC-FDMA) was accepted as the uplink access scheme due to its advantage of very low cubic metric (CM). For LTE-A wideband transmission, multicarrier access would be more effective than single carrier access to make use of multi-user diversity and can maintain the physical channel structure of LTE, where the control information is transmitted on the edges of each 20 MHz. In this paper, we discuss the access schemes in bandwidth under 20 MHz as well as over 20 MHz. In the case of bandwidth under 20 MHz, we propose the access schemes allowing discontinuous resource allocation to enhance average throughput while maintaining cell-edge user throughput, that is, DFT-spread-OFDM with spectrum division control (SDC) and adaptive selection of SC-FDMA and OFDM (SC+OFDM). The number of discontinuous spectrums is denoted as spectrum division (SD). For DFT-S-OFDM, we define a parameter max SD as the upper limit of SD. We evaluate our proposed schemes in bandwidth under 20 MHz and find that SC+OFDM as well as SDC with common max SD or UE-specific max SD can improve average throughput while their cell-edge user throughput can approach that of SC-FDMA. In the case of bandwidth over 20 MHz, we consider key factors to decide a feasible access scheme for aggregating several 20 MHz-wide bands.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E92.B.1760/_p
Salinan
@ARTICLE{e92-b_5_1760,
author={Le LIU, Takamichi INOUE, Kenji KOYANAGI, Yoshikazu KAKURA, },
journal={IEICE TRANSACTIONS on Communications},
title={Uplink Access Schemes for LTE-Advanced},
year={2009},
volume={E92-B},
number={5},
pages={1760-1768},
abstract={The 3GPP LTE-Advanced has been attracting much attention recently, where the channel bandwidth would be beyond the maximum bandwidth of LTE, 20 MHz. In LTE, single carrier-frequency division multiple access (SC-FDMA) was accepted as the uplink access scheme due to its advantage of very low cubic metric (CM). For LTE-A wideband transmission, multicarrier access would be more effective than single carrier access to make use of multi-user diversity and can maintain the physical channel structure of LTE, where the control information is transmitted on the edges of each 20 MHz. In this paper, we discuss the access schemes in bandwidth under 20 MHz as well as over 20 MHz. In the case of bandwidth under 20 MHz, we propose the access schemes allowing discontinuous resource allocation to enhance average throughput while maintaining cell-edge user throughput, that is, DFT-spread-OFDM with spectrum division control (SDC) and adaptive selection of SC-FDMA and OFDM (SC+OFDM). The number of discontinuous spectrums is denoted as spectrum division (SD). For DFT-S-OFDM, we define a parameter max SD as the upper limit of SD. We evaluate our proposed schemes in bandwidth under 20 MHz and find that SC+OFDM as well as SDC with common max SD or UE-specific max SD can improve average throughput while their cell-edge user throughput can approach that of SC-FDMA. In the case of bandwidth over 20 MHz, we consider key factors to decide a feasible access scheme for aggregating several 20 MHz-wide bands.},
keywords={},
doi={10.1587/transcom.E92.B.1760},
ISSN={1745-1345},
month={May},}
Salinan
TY - JOUR
TI - Uplink Access Schemes for LTE-Advanced
T2 - IEICE TRANSACTIONS on Communications
SP - 1760
EP - 1768
AU - Le LIU
AU - Takamichi INOUE
AU - Kenji KOYANAGI
AU - Yoshikazu KAKURA
PY - 2009
DO - 10.1587/transcom.E92.B.1760
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E92-B
IS - 5
JA - IEICE TRANSACTIONS on Communications
Y1 - May 2009
AB - The 3GPP LTE-Advanced has been attracting much attention recently, where the channel bandwidth would be beyond the maximum bandwidth of LTE, 20 MHz. In LTE, single carrier-frequency division multiple access (SC-FDMA) was accepted as the uplink access scheme due to its advantage of very low cubic metric (CM). For LTE-A wideband transmission, multicarrier access would be more effective than single carrier access to make use of multi-user diversity and can maintain the physical channel structure of LTE, where the control information is transmitted on the edges of each 20 MHz. In this paper, we discuss the access schemes in bandwidth under 20 MHz as well as over 20 MHz. In the case of bandwidth under 20 MHz, we propose the access schemes allowing discontinuous resource allocation to enhance average throughput while maintaining cell-edge user throughput, that is, DFT-spread-OFDM with spectrum division control (SDC) and adaptive selection of SC-FDMA and OFDM (SC+OFDM). The number of discontinuous spectrums is denoted as spectrum division (SD). For DFT-S-OFDM, we define a parameter max SD as the upper limit of SD. We evaluate our proposed schemes in bandwidth under 20 MHz and find that SC+OFDM as well as SDC with common max SD or UE-specific max SD can improve average throughput while their cell-edge user throughput can approach that of SC-FDMA. In the case of bandwidth over 20 MHz, we consider key factors to decide a feasible access scheme for aggregating several 20 MHz-wide bands.
ER -