A Novel Spectrum Partitioning Scheme for Dynamic Heterogeneous Networks

Hyunjin Kim; Hyejin Kim; Jintae Kim; Daesik Hong

doi:10.1109/VTC2021-Spring51267.2021.9448816

A Novel Spectrum Partitioning Scheme for Dynamic Heterogeneous Networks

Hyunjin Kim, Hyejin Kim, Jintae Kim, Daesik Hong

Department of Electrical and Electronic Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Dynamic heterogeneous networks (HetNets) in which small cells operate in dynamic time division duplex (D-TDD) systems enable the instantaneous traffic load to be handled with greater spectral efficiency than conventional HetNets. However, combining HetNets and D-TDD systems causes cross-link interference (CLI) both within the same tier and across tiers, negatively impacting system performance. In this paper, we point out that small cells are underprivileged in terms of interference mitigation under the conventional spectrum partitioning usage. Accordingly, we propose employing a novel spectrum partitioning scheme that brings up interference scenarios where we can take advantage of multiple-input multiple-output (MIMO) compatibility from macro base stations. Simulation results show that the proposed spectrum usage in combination with general MIMO schemes achieves significant performance enhancement in terms of small cell capacity at the cost of a relatively small degradation in macro cell capacity.

Original language	English
Title of host publication	2021 IEEE 93rd Vehicular Technology Conference, VTC 2021-Spring - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781728189642
DOIs	https://doi.org/10.1109/VTC2021-Spring51267.2021.9448816
Publication status	Published - 2021 Apr
Event	93rd IEEE Vehicular Technology Conference, VTC 2021-Spring - Virtual, Online Duration: 2021 Apr 25 → 2021 Apr 28

Publication series

Name	IEEE Vehicular Technology Conference
Volume	2021-April
ISSN (Print)	1550-2252

Conference

Conference	93rd IEEE Vehicular Technology Conference, VTC 2021-Spring
City	Virtual, Online
Period	21/4/25 → 21/4/28

Bibliographical note

Funding Information:
ACKNOWLEDGEMENTS This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No.2018R1A2A1A05021029) and in part by Sam-sung Research in Samsung Electronics.

Publisher Copyright:
© 2021 IEEE.

All Science Journal Classification (ASJC) codes

Computer Science Applications
Electrical and Electronic Engineering
Applied Mathematics

Access to Document

10.1109/VTC2021-Spring51267.2021.9448816

Cite this

Kim, H., Kim, H., Kim, J., & Hong, D. (2021). A Novel Spectrum Partitioning Scheme for Dynamic Heterogeneous Networks. In 2021 IEEE 93rd Vehicular Technology Conference, VTC 2021-Spring - Proceedings [9448816] (IEEE Vehicular Technology Conference; Vol. 2021-April). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/VTC2021-Spring51267.2021.9448816

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title = "A Novel Spectrum Partitioning Scheme for Dynamic Heterogeneous Networks",

abstract = "Dynamic heterogeneous networks (HetNets) in which small cells operate in dynamic time division duplex (D-TDD) systems enable the instantaneous traffic load to be handled with greater spectral efficiency than conventional HetNets. However, combining HetNets and D-TDD systems causes cross-link interference (CLI) both within the same tier and across tiers, negatively impacting system performance. In this paper, we point out that small cells are underprivileged in terms of interference mitigation under the conventional spectrum partitioning usage. Accordingly, we propose employing a novel spectrum partitioning scheme that brings up interference scenarios where we can take advantage of multiple-input multiple-output (MIMO) compatibility from macro base stations. Simulation results show that the proposed spectrum usage in combination with general MIMO schemes achieves significant performance enhancement in terms of small cell capacity at the cost of a relatively small degradation in macro cell capacity.",

author = "Hyunjin Kim and Hyejin Kim and Jintae Kim and Daesik Hong",

note = "Funding Information: ACKNOWLEDGEMENTS This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No.2018R1A2A1A05021029) and in part by Sam-sung Research in Samsung Electronics. Publisher Copyright: {\textcopyright} 2021 IEEE.; 93rd IEEE Vehicular Technology Conference, VTC 2021-Spring ; Conference date: 25-04-2021 Through 28-04-2021",

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month = apr,

doi = "10.1109/VTC2021-Spring51267.2021.9448816",

language = "English",

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Kim, H, Kim, H, Kim, J & Hong, D 2021, A Novel Spectrum Partitioning Scheme for Dynamic Heterogeneous Networks. in 2021 IEEE 93rd Vehicular Technology Conference, VTC 2021-Spring - Proceedings., 9448816, IEEE Vehicular Technology Conference, vol. 2021-April, Institute of Electrical and Electronics Engineers Inc., 93rd IEEE Vehicular Technology Conference, VTC 2021-Spring, Virtual, Online, 21/4/25. https://doi.org/10.1109/VTC2021-Spring51267.2021.9448816

A Novel Spectrum Partitioning Scheme for Dynamic Heterogeneous Networks. / Kim, Hyunjin; Kim, Hyejin; Kim, Jintae et al.

2021 IEEE 93rd Vehicular Technology Conference, VTC 2021-Spring - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2021. 9448816 (IEEE Vehicular Technology Conference; Vol. 2021-April).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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N1 - Funding Information: ACKNOWLEDGEMENTS This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No.2018R1A2A1A05021029) and in part by Sam-sung Research in Samsung Electronics. Publisher Copyright: © 2021 IEEE.

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N2 - Dynamic heterogeneous networks (HetNets) in which small cells operate in dynamic time division duplex (D-TDD) systems enable the instantaneous traffic load to be handled with greater spectral efficiency than conventional HetNets. However, combining HetNets and D-TDD systems causes cross-link interference (CLI) both within the same tier and across tiers, negatively impacting system performance. In this paper, we point out that small cells are underprivileged in terms of interference mitigation under the conventional spectrum partitioning usage. Accordingly, we propose employing a novel spectrum partitioning scheme that brings up interference scenarios where we can take advantage of multiple-input multiple-output (MIMO) compatibility from macro base stations. Simulation results show that the proposed spectrum usage in combination with general MIMO schemes achieves significant performance enhancement in terms of small cell capacity at the cost of a relatively small degradation in macro cell capacity.

AB - Dynamic heterogeneous networks (HetNets) in which small cells operate in dynamic time division duplex (D-TDD) systems enable the instantaneous traffic load to be handled with greater spectral efficiency than conventional HetNets. However, combining HetNets and D-TDD systems causes cross-link interference (CLI) both within the same tier and across tiers, negatively impacting system performance. In this paper, we point out that small cells are underprivileged in terms of interference mitigation under the conventional spectrum partitioning usage. Accordingly, we propose employing a novel spectrum partitioning scheme that brings up interference scenarios where we can take advantage of multiple-input multiple-output (MIMO) compatibility from macro base stations. Simulation results show that the proposed spectrum usage in combination with general MIMO schemes achieves significant performance enhancement in terms of small cell capacity at the cost of a relatively small degradation in macro cell capacity.

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A Novel Spectrum Partitioning Scheme for Dynamic Heterogeneous Networks

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