A QoE-based cell range expansion scheme in heterogeneous cellular networks

Ting Ting Yuan; Ze Song Fei; Na Li; Ni Wei Wang; Cheng Wen Xing; Jia Kang Liu

doi:10.1007/s11432-015-5297-7

A QoE-based cell range expansion scheme in heterogeneous cellular networks

Ting Ting Yuan, Ze Song Fei^*, Na Li, Ni Wei Wang, Cheng Wen Xing, Jia Kang Liu

^*Corresponding author for this work

School of Information and Electronics

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

Deploying low-power nodes (LPNs) overlaid with Macro cells is a promising strategy to improve the coverage and capacity of cellular systems. Meanwhile, cell range expansion (CRE) scheme is proposed to select a proper serving base station (BS) for users between Macro eNodeBs and LPNs, and then offloading of traffic from Macro cell is made. In this paper, first, we introduce the LPNs deployment strategy and its activation criteria in the heterogeneous system. Then, a quality of experience (QoE)-based CRE scheme to adjust the coverage area of LPNs adaptively is proposed. Different from the existing CRE schemes, the QoE values for different users with different services are considered when the users try to select an appropriate serving BS. Finally, simulation results demonstrate that the proposed scheme can improve cell edge user experience for various services as well as overall system performance.

Original language	English
Pages (from-to)	1-11
Number of pages	11
Journal	Science China Information Sciences
Volume	58
Issue number	8
DOIs	https://doi.org/10.1007/s11432-015-5297-7
Publication status	Published - 25 Aug 2015

Keywords

LTE-advanced
cell range expansion
heterogeneous networks
low power nodes
quality of experience

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10.1007/s11432-015-5297-7

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title = "A QoE-based cell range expansion scheme in heterogeneous cellular networks",

abstract = "Deploying low-power nodes (LPNs) overlaid with Macro cells is a promising strategy to improve the coverage and capacity of cellular systems. Meanwhile, cell range expansion (CRE) scheme is proposed to select a proper serving base station (BS) for users between Macro eNodeBs and LPNs, and then offloading of traffic from Macro cell is made. In this paper, first, we introduce the LPNs deployment strategy and its activation criteria in the heterogeneous system. Then, a quality of experience (QoE)-based CRE scheme to adjust the coverage area of LPNs adaptively is proposed. Different from the existing CRE schemes, the QoE values for different users with different services are considered when the users try to select an appropriate serving BS. Finally, simulation results demonstrate that the proposed scheme can improve cell edge user experience for various services as well as overall system performance.",

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AU - Yuan, Ting Ting

AU - Fei, Ze Song

AU - Li, Na

AU - Wang, Ni Wei

AU - Xing, Cheng Wen

AU - Liu, Jia Kang

PY - 2015/8/25

Y1 - 2015/8/25

N2 - Deploying low-power nodes (LPNs) overlaid with Macro cells is a promising strategy to improve the coverage and capacity of cellular systems. Meanwhile, cell range expansion (CRE) scheme is proposed to select a proper serving base station (BS) for users between Macro eNodeBs and LPNs, and then offloading of traffic from Macro cell is made. In this paper, first, we introduce the LPNs deployment strategy and its activation criteria in the heterogeneous system. Then, a quality of experience (QoE)-based CRE scheme to adjust the coverage area of LPNs adaptively is proposed. Different from the existing CRE schemes, the QoE values for different users with different services are considered when the users try to select an appropriate serving BS. Finally, simulation results demonstrate that the proposed scheme can improve cell edge user experience for various services as well as overall system performance.

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KW - LTE-advanced

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A QoE-based cell range expansion scheme in heterogeneous cellular networks

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Keywords

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