Relay-Assisted Load Balancing Scheme Based on Practical Throughput Estimation

Won-Tae YU; Jeongsik CHOI; Woong-Hee LEE; Seong-Cheol KIM

doi:10.1587/transcom.2017EBP3044

Relay-Assisted Load Balancing Scheme Based on Practical Throughput Estimation

Won-Tae YU, Jeongsik CHOI, Woong-Hee LEE, Seong-Cheol KIM

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Summary :

In cellular network environments, where users are not evenly distributed across cells, overloaded base stations handling many users have difficulties in providing effective and fair services with their limited resources. Additionally, users at the cell edge may suffer from the potential problems resulting from low signal-to-interference ratio owing to the incessant interference from adjacent cells. In this paper, we propose a relay-assisted load balancing scheme to resolve these traffic imbalance. The proposed scheme can improve the performance of the overall network by utilizing relay stations to divert heavy traffic to other cells, and by adopting a partial frequency-reuse scheme to mitigate inter-cell interference. Each user and relay station calculates its own utility influence in the neighboring candidates for reassociation and decides whether to stay or move to another cell presenting the maximum total network utility increment. Simulation results show that the proposed scheme improves the overall network fairness to users by improving the performance of cell boundary users without degrading the total network throughput. We achieve a system performance gain of 16 ∼ 35% when compared with conventional schemes, while ensuring fairness among users.

Publication: IEICE TRANSACTIONS on Communications Vol.E101-B No.1 pp.242-252

Publication Date: 2018/01/01

Publicized: 2017/07/03

Online ISSN: 1745-1345

DOI: 10.1587/transcom.2017EBP3044

Type of Manuscript: PAPER

Category: Wireless Communication Technologies

Authors

Won-Tae YU
  Seoul National University (SNU)
Jeongsik CHOI
  Seoul National University (SNU)
Woong-Hee LEE
  Seoul National University (SNU)
Seong-Cheol KIM
  Seoul National University (SNU)

Keyword

cellular network, relay station, proportional fairness, user association, load balancing

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Won-Tae YU, Jeongsik CHOI, Woong-Hee LEE, Seong-Cheol KIM, "Relay-Assisted Load Balancing Scheme Based on Practical Throughput Estimation" in IEICE TRANSACTIONS on Communications, vol. E101-B, no. 1, pp. 242-252, January 2018, doi: 10.1587/transcom.2017EBP3044.
Abstract: In cellular network environments, where users are not evenly distributed across cells, overloaded base stations handling many users have difficulties in providing effective and fair services with their limited resources. Additionally, users at the cell edge may suffer from the potential problems resulting from low signal-to-interference ratio owing to the incessant interference from adjacent cells. In this paper, we propose a relay-assisted load balancing scheme to resolve these traffic imbalance. The proposed scheme can improve the performance of the overall network by utilizing relay stations to divert heavy traffic to other cells, and by adopting a partial frequency-reuse scheme to mitigate inter-cell interference. Each user and relay station calculates its own utility influence in the neighboring candidates for reassociation and decides whether to stay or move to another cell presenting the maximum total network utility increment. Simulation results show that the proposed scheme improves the overall network fairness to users by improving the performance of cell boundary users without degrading the total network throughput. We achieve a system performance gain of 16 ∼ 35% when compared with conventional schemes, while ensuring fairness among users.
URL: https://globals.ieice.org/en_transactions/communications/10.1587/transcom.2017EBP3044/_p

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@ARTICLE{e101-b_1_242,
author={Won-Tae YU, Jeongsik CHOI, Woong-Hee LEE, Seong-Cheol KIM, },
journal={IEICE TRANSACTIONS on Communications},
title={Relay-Assisted Load Balancing Scheme Based on Practical Throughput Estimation},
year={2018},
volume={E101-B},
number={1},
pages={242-252},
abstract={In cellular network environments, where users are not evenly distributed across cells, overloaded base stations handling many users have difficulties in providing effective and fair services with their limited resources. Additionally, users at the cell edge may suffer from the potential problems resulting from low signal-to-interference ratio owing to the incessant interference from adjacent cells. In this paper, we propose a relay-assisted load balancing scheme to resolve these traffic imbalance. The proposed scheme can improve the performance of the overall network by utilizing relay stations to divert heavy traffic to other cells, and by adopting a partial frequency-reuse scheme to mitigate inter-cell interference. Each user and relay station calculates its own utility influence in the neighboring candidates for reassociation and decides whether to stay or move to another cell presenting the maximum total network utility increment. Simulation results show that the proposed scheme improves the overall network fairness to users by improving the performance of cell boundary users without degrading the total network throughput. We achieve a system performance gain of 16 ∼ 35% when compared with conventional schemes, while ensuring fairness among users.},
keywords={},
doi={10.1587/transcom.2017EBP3044},
ISSN={1745-1345},
month={January},}

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TY - JOUR
TI - Relay-Assisted Load Balancing Scheme Based on Practical Throughput Estimation
T2 - IEICE TRANSACTIONS on Communications
SP - 242
EP - 252
AU - Won-Tae YU
AU - Jeongsik CHOI
AU - Woong-Hee LEE
AU - Seong-Cheol KIM
PY - 2018
DO - 10.1587/transcom.2017EBP3044
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E101-B
IS - 1
JA - IEICE TRANSACTIONS on Communications
Y1 - January 2018
AB - In cellular network environments, where users are not evenly distributed across cells, overloaded base stations handling many users have difficulties in providing effective and fair services with their limited resources. Additionally, users at the cell edge may suffer from the potential problems resulting from low signal-to-interference ratio owing to the incessant interference from adjacent cells. In this paper, we propose a relay-assisted load balancing scheme to resolve these traffic imbalance. The proposed scheme can improve the performance of the overall network by utilizing relay stations to divert heavy traffic to other cells, and by adopting a partial frequency-reuse scheme to mitigate inter-cell interference. Each user and relay station calculates its own utility influence in the neighboring candidates for reassociation and decides whether to stay or move to another cell presenting the maximum total network utility increment. Simulation results show that the proposed scheme improves the overall network fairness to users by improving the performance of cell boundary users without degrading the total network throughput. We achieve a system performance gain of 16 ∼ 35% when compared with conventional schemes, while ensuring fairness among users.
ER -