Analysis on Effectiveness of Fractional Frequency Reuse for Uplink Using SC-FDMA in Cellular Systems

Masashi FUSHIKI; Takeo OHSEKI; Satoshi KONISHI

doi:10.1587/transcom.E97.B.1457

Analysis on Effectiveness of Fractional Frequency Reuse for Uplink Using SC-FDMA in Cellular Systems

Masashi FUSHIKI, Takeo OHSEKI, Satoshi KONISHI

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Single Carrier — Frequency Domain Multiple Access (SC-FDMA) is a multiple access technique employed in LTE uplink transmission. SC-FDMA can improve system throughput by frequency selective scheduling (FSS). In cellular systems using SC-FDMA in the uplink, interference arising from user equipments (UEs) in neighboring cells degrades the system throughput, especially the throughput of cell-edge UEs. In order to overcome this drawback, many papers have considered fractional frequency reuse (FFR) techniques and analyzed their effectiveness. However, these studies have come to different conclusions regarding the effectiveness of FFR because the throughput gain of FFR depends on the frequency reuse design and evaluation conditions. Previous papers have focused on the frequency reuse design. Few papers have examined the conditions where FFR is effective, and only the UE traffic conditions have been evaluated. This paper reveals other conditions where FFR is effective by demonstrating the throughput gain of FFR. In order to analyze the throughput gain of FFR, we focus on the throughput relationship between FFR and FSS. System level simulation results demonstrate that FFR is effective when the following conditions are met: (i) the number of UEs is small and (ii) the multipath delay spread is large or close to 0.

Publication: IEICE TRANSACTIONS on Communications Vol.E97-B No.7 pp.1457-1466

Publication Date: 2014/07/01

Publicized

Online ISSN: 1745-1345

DOI: 10.1587/transcom.E97.B.1457

Type of Manuscript: PAPER

Category: Wireless Communication Technologies

Authors

Masashi FUSHIKI
  KDDI R&D Laboratories Inc.
Takeo OHSEKI
  KDDI R&D Laboratories Inc.
Satoshi KONISHI
  KDDI R&D Laboratories Inc.

Keyword

inter-cell Interference, fractional frequency reuse, frequency selective scheduling, single carrier-frequency division multiple access

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Masashi FUSHIKI, Takeo OHSEKI, Satoshi KONISHI, "Analysis on Effectiveness of Fractional Frequency Reuse for Uplink Using SC-FDMA in Cellular Systems" in IEICE TRANSACTIONS on Communications, vol. E97-B, no. 7, pp. 1457-1466, July 2014, doi: 10.1587/transcom.E97.B.1457.
Abstract: Single Carrier — Frequency Domain Multiple Access (SC-FDMA) is a multiple access technique employed in LTE uplink transmission. SC-FDMA can improve system throughput by frequency selective scheduling (FSS). In cellular systems using SC-FDMA in the uplink, interference arising from user equipments (UEs) in neighboring cells degrades the system throughput, especially the throughput of cell-edge UEs. In order to overcome this drawback, many papers have considered fractional frequency reuse (FFR) techniques and analyzed their effectiveness. However, these studies have come to different conclusions regarding the effectiveness of FFR because the throughput gain of FFR depends on the frequency reuse design and evaluation conditions. Previous papers have focused on the frequency reuse design. Few papers have examined the conditions where FFR is effective, and only the UE traffic conditions have been evaluated. This paper reveals other conditions where FFR is effective by demonstrating the throughput gain of FFR. In order to analyze the throughput gain of FFR, we focus on the throughput relationship between FFR and FSS. System level simulation results demonstrate that FFR is effective when the following conditions are met: (i) the number of UEs is small and (ii) the multipath delay spread is large or close to 0.
URL: https://globals.ieice.org/en_transactions/communications/10.1587/transcom.E97.B.1457/_p

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@ARTICLE{e97-b_7_1457,
author={Masashi FUSHIKI, Takeo OHSEKI, Satoshi KONISHI, },
journal={IEICE TRANSACTIONS on Communications},
title={Analysis on Effectiveness of Fractional Frequency Reuse for Uplink Using SC-FDMA in Cellular Systems},
year={2014},
volume={E97-B},
number={7},
pages={1457-1466},
abstract={Single Carrier — Frequency Domain Multiple Access (SC-FDMA) is a multiple access technique employed in LTE uplink transmission. SC-FDMA can improve system throughput by frequency selective scheduling (FSS). In cellular systems using SC-FDMA in the uplink, interference arising from user equipments (UEs) in neighboring cells degrades the system throughput, especially the throughput of cell-edge UEs. In order to overcome this drawback, many papers have considered fractional frequency reuse (FFR) techniques and analyzed their effectiveness. However, these studies have come to different conclusions regarding the effectiveness of FFR because the throughput gain of FFR depends on the frequency reuse design and evaluation conditions. Previous papers have focused on the frequency reuse design. Few papers have examined the conditions where FFR is effective, and only the UE traffic conditions have been evaluated. This paper reveals other conditions where FFR is effective by demonstrating the throughput gain of FFR. In order to analyze the throughput gain of FFR, we focus on the throughput relationship between FFR and FSS. System level simulation results demonstrate that FFR is effective when the following conditions are met: (i) the number of UEs is small and (ii) the multipath delay spread is large or close to 0.},
keywords={},
doi={10.1587/transcom.E97.B.1457},
ISSN={1745-1345},
month={July},}

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TY - JOUR
TI - Analysis on Effectiveness of Fractional Frequency Reuse for Uplink Using SC-FDMA in Cellular Systems
T2 - IEICE TRANSACTIONS on Communications
SP - 1457
EP - 1466
AU - Masashi FUSHIKI
AU - Takeo OHSEKI
AU - Satoshi KONISHI
PY - 2014
DO - 10.1587/transcom.E97.B.1457
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E97-B
IS - 7
JA - IEICE TRANSACTIONS on Communications
Y1 - July 2014
AB - Single Carrier — Frequency Domain Multiple Access (SC-FDMA) is a multiple access technique employed in LTE uplink transmission. SC-FDMA can improve system throughput by frequency selective scheduling (FSS). In cellular systems using SC-FDMA in the uplink, interference arising from user equipments (UEs) in neighboring cells degrades the system throughput, especially the throughput of cell-edge UEs. In order to overcome this drawback, many papers have considered fractional frequency reuse (FFR) techniques and analyzed their effectiveness. However, these studies have come to different conclusions regarding the effectiveness of FFR because the throughput gain of FFR depends on the frequency reuse design and evaluation conditions. Previous papers have focused on the frequency reuse design. Few papers have examined the conditions where FFR is effective, and only the UE traffic conditions have been evaluated. This paper reveals other conditions where FFR is effective by demonstrating the throughput gain of FFR. In order to analyze the throughput gain of FFR, we focus on the throughput relationship between FFR and FSS. System level simulation results demonstrate that FFR is effective when the following conditions are met: (i) the number of UEs is small and (ii) the multipath delay spread is large or close to 0.
ER -