Phase Selection in Round-Robin Scheduling Sequence for Distributed Antenna System

Go OTSURU; Yukitoshi SANADA

doi:10.1587/transcom.2019EBP3222

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Phase Selection in Round-Robin Scheduling Sequence for Distributed Antenna System

Go OTSURU, Yukitoshi SANADA

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Summary :

One of key technologies in the fifth generation mobile communications is a distributed antenna system (DAS). As DAS creates tightly packed antenna arrangements, inter-user interference degrades its spectrum efficiency. Round-robin (RR) scheduling is known as a scheme that achieves a good trade-off between computational complexity and spectrum efficiency. This paper proposes a user equipment (UE) allocation scheme for RR scheduling. The proposed scheme offers low complexity as the phase of UE allocation sequences are predetermined. Four different phase selection criteria are compared in this paper. Numerical results obtained through computer simulation show that maximum selection, which sequentially searches for the phase with the maximum tentative throughput realizes the best spectrum efficiency next to full search. There is an optimum number of UEs which obtains the largest throughput in single-user allocation while the system throughput improves as the number of UEs increases in 2-user RR scheduling.

Publication: IEICE TRANSACTIONS on Communications Vol.E103-B No.10 pp.1155-1163

Publication Date: 2020/10/01

Publicized: 2020/03/25

Online ISSN: 1745-1345

DOI: 10.1587/transcom.2019EBP3222

Type of Manuscript: PAPER

Category: Wireless Communication Technologies

Authors

Go OTSURU
Keio University
Yukitoshi SANADA
Keio University

Keyword

distributed antenna system, round-robin scheduling

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Go OTSURU, Yukitoshi SANADA, "Phase Selection in Round-Robin Scheduling Sequence for Distributed Antenna System" in IEICE TRANSACTIONS on Communications, vol. E103-B, no. 10, pp. 1155-1163, October 2020, doi: 10.1587/transcom.2019EBP3222.
Abstract: One of key technologies in the fifth generation mobile communications is a distributed antenna system (DAS). As DAS creates tightly packed antenna arrangements, inter-user interference degrades its spectrum efficiency. Round-robin (RR) scheduling is known as a scheme that achieves a good trade-off between computational complexity and spectrum efficiency. This paper proposes a user equipment (UE) allocation scheme for RR scheduling. The proposed scheme offers low complexity as the phase of UE allocation sequences are predetermined. Four different phase selection criteria are compared in this paper. Numerical results obtained through computer simulation show that maximum selection, which sequentially searches for the phase with the maximum tentative throughput realizes the best spectrum efficiency next to full search. There is an optimum number of UEs which obtains the largest throughput in single-user allocation while the system throughput improves as the number of UEs increases in 2-user RR scheduling.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2019EBP3222/_p

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@ARTICLE{e103-b_10_1155,
author={Go OTSURU, Yukitoshi SANADA, },
journal={IEICE TRANSACTIONS on Communications},
title={Phase Selection in Round-Robin Scheduling Sequence for Distributed Antenna System},
year={2020},
volume={E103-B},
number={10},
pages={1155-1163},
abstract={One of key technologies in the fifth generation mobile communications is a distributed antenna system (DAS). As DAS creates tightly packed antenna arrangements, inter-user interference degrades its spectrum efficiency. Round-robin (RR) scheduling is known as a scheme that achieves a good trade-off between computational complexity and spectrum efficiency. This paper proposes a user equipment (UE) allocation scheme for RR scheduling. The proposed scheme offers low complexity as the phase of UE allocation sequences are predetermined. Four different phase selection criteria are compared in this paper. Numerical results obtained through computer simulation show that maximum selection, which sequentially searches for the phase with the maximum tentative throughput realizes the best spectrum efficiency next to full search. There is an optimum number of UEs which obtains the largest throughput in single-user allocation while the system throughput improves as the number of UEs increases in 2-user RR scheduling.},
keywords={},
doi={10.1587/transcom.2019EBP3222},
ISSN={1745-1345},
month={October},}

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TY - JOUR
TI - Phase Selection in Round-Robin Scheduling Sequence for Distributed Antenna System
T2 - IEICE TRANSACTIONS on Communications
SP - 1155
EP - 1163
AU - Go OTSURU
AU - Yukitoshi SANADA
PY - 2020
DO - 10.1587/transcom.2019EBP3222
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E103-B
IS - 10
JA - IEICE TRANSACTIONS on Communications
Y1 - October 2020
AB - One of key technologies in the fifth generation mobile communications is a distributed antenna system (DAS). As DAS creates tightly packed antenna arrangements, inter-user interference degrades its spectrum efficiency. Round-robin (RR) scheduling is known as a scheme that achieves a good trade-off between computational complexity and spectrum efficiency. This paper proposes a user equipment (UE) allocation scheme for RR scheduling. The proposed scheme offers low complexity as the phase of UE allocation sequences are predetermined. Four different phase selection criteria are compared in this paper. Numerical results obtained through computer simulation show that maximum selection, which sequentially searches for the phase with the maximum tentative throughput realizes the best spectrum efficiency next to full search. There is an optimum number of UEs which obtains the largest throughput in single-user allocation while the system throughput improves as the number of UEs increases in 2-user RR scheduling.
ER -