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 konfigurasi perkakasan untuk penghantaran berbilang input berbilang-pengguna berbilang-output (MU-MIMO) dalam sistem antena teragih (DAS). Permintaan untuk transmisi berkelajuan tinggi dalam pautan atas telah meningkat baru-baru ini, yang mana penyeragaman dalam rangkaian lanjutan LTE dan IEEE 802.11ax sedang dijalankan. Penjadualan terminal pengguna (UT) pada transmisi MU-MIMO pautan bawah adalah mudah walaupun dalam jalur tidak berlesen seperti dalam sistem rangkaian kawasan tempatan wayarles (WLAN). Walau bagaimanapun, pengurusan terperinci UT adalah sukar pada transmisi MU-MIMO pautan atas kerana kawalan akses wayarles terpencar. Konfigurasi yang dicadangkan membolehkan antena dipilih daripada peranti luaran pada titik akses (AP). Semua antena AP dibahagikan kepada kumpulan, dan isyarat yang diterima dalam setiap kumpulan dimasukkan ke pengesan amplitud melalui pengganding arah. Selepas itu, antena yang dipilih disuap oleh suis berbilang-ke-satu dan bukannya suis matriks. Untuk menjelaskan keberkesanan konfigurasi yang dicadangkan, kami menjalankan simulasi komputer berdasarkan kaedah pengesanan sinar untuk saluran perambatan dalam persekitaran dalaman.
Sho YOSHIDA
Niigata University
Kentaro NISHIMORI
Niigata University
Soichi ITO
Niigata University
Tomoki MURAKAMI
Nippon Telegraph and Telephone Corporation
Koichi ISHIHARA
Nippon Telegraph and Telephone Corporation
Yasushi TAKATORI
Nippon Telegraph and Telephone Corporation
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Salinan
Sho YOSHIDA, Kentaro NISHIMORI, Soichi ITO, Tomoki MURAKAMI, Koichi ISHIHARA, Yasushi TAKATORI, "Dynamic Group-Based Antenna Selection for Uplink Multi-User MIMO in Distributed Antenna System" in IEICE TRANSACTIONS on Communications,
vol. E101-B, no. 7, pp. 1552-1560, July 2018, doi: 10.1587/transcom.2017CQP0012.
Abstract: This paper proposes a hardware configuration for uplink multi-user multiple-input multiple-output (MU-MIMO) transmissions in a distributed antenna system (DAS). The demand for high-speed transmission in the uplink has increased recently, because of which standardizations in LTE-advanced and IEEE 802.11ax networks is currently underway. User terminal (UT) scheduling on the downlink MU-MIMO transmission is easy even in unlicensed band such as those in wireless local area network (WLAN) systems. However, the detailed management of the UTs is difficult on the uplink MU-MIMO transmissions because of the decentralized wireless access control. The proposed configuration allows an antenna to be selected from an external device on the access point (AP). All AP antennas are divided into groups, and the received signal in each group is input to the amplitude detector via a directional coupler. Subsequently, the selected antenna is fed by a multiple-to-one switch instead of a matrix switch. To clarify the effectiveness of the proposed configuration, we conduct computer simulations based on the ray-tracing method for propagation channels in an indoor environment.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2017CQP0012/_p
Salinan
@ARTICLE{e101-b_7_1552,
author={Sho YOSHIDA, Kentaro NISHIMORI, Soichi ITO, Tomoki MURAKAMI, Koichi ISHIHARA, Yasushi TAKATORI, },
journal={IEICE TRANSACTIONS on Communications},
title={Dynamic Group-Based Antenna Selection for Uplink Multi-User MIMO in Distributed Antenna System},
year={2018},
volume={E101-B},
number={7},
pages={1552-1560},
abstract={This paper proposes a hardware configuration for uplink multi-user multiple-input multiple-output (MU-MIMO) transmissions in a distributed antenna system (DAS). The demand for high-speed transmission in the uplink has increased recently, because of which standardizations in LTE-advanced and IEEE 802.11ax networks is currently underway. User terminal (UT) scheduling on the downlink MU-MIMO transmission is easy even in unlicensed band such as those in wireless local area network (WLAN) systems. However, the detailed management of the UTs is difficult on the uplink MU-MIMO transmissions because of the decentralized wireless access control. The proposed configuration allows an antenna to be selected from an external device on the access point (AP). All AP antennas are divided into groups, and the received signal in each group is input to the amplitude detector via a directional coupler. Subsequently, the selected antenna is fed by a multiple-to-one switch instead of a matrix switch. To clarify the effectiveness of the proposed configuration, we conduct computer simulations based on the ray-tracing method for propagation channels in an indoor environment.},
keywords={},
doi={10.1587/transcom.2017CQP0012},
ISSN={1745-1345},
month={July},}
Salinan
TY - JOUR
TI - Dynamic Group-Based Antenna Selection for Uplink Multi-User MIMO in Distributed Antenna System
T2 - IEICE TRANSACTIONS on Communications
SP - 1552
EP - 1560
AU - Sho YOSHIDA
AU - Kentaro NISHIMORI
AU - Soichi ITO
AU - Tomoki MURAKAMI
AU - Koichi ISHIHARA
AU - Yasushi TAKATORI
PY - 2018
DO - 10.1587/transcom.2017CQP0012
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E101-B
IS - 7
JA - IEICE TRANSACTIONS on Communications
Y1 - July 2018
AB - This paper proposes a hardware configuration for uplink multi-user multiple-input multiple-output (MU-MIMO) transmissions in a distributed antenna system (DAS). The demand for high-speed transmission in the uplink has increased recently, because of which standardizations in LTE-advanced and IEEE 802.11ax networks is currently underway. User terminal (UT) scheduling on the downlink MU-MIMO transmission is easy even in unlicensed band such as those in wireless local area network (WLAN) systems. However, the detailed management of the UTs is difficult on the uplink MU-MIMO transmissions because of the decentralized wireless access control. The proposed configuration allows an antenna to be selected from an external device on the access point (AP). All AP antennas are divided into groups, and the received signal in each group is input to the amplitude detector via a directional coupler. Subsequently, the selected antenna is fed by a multiple-to-one switch instead of a matrix switch. To clarify the effectiveness of the proposed configuration, we conduct computer simulations based on the ray-tracing method for propagation channels in an indoor environment.
ER -