Interference Mitigation in CR-Enabled Heterogeneous Networks

Shao-Yu LIEN; Shin-Ming CHENG; Kwang-Cheng CHEN

doi:10.1587/transcom.E96.B.1230

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Interference Mitigation in CR-Enabled Heterogeneous Networks

Shao-Yu LIEN, Shin-Ming CHENG, Kwang-Cheng CHEN

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The heterogeneous network (HetNet), which deploys small cells such as picocells, femotcells, and relay nodes within macrocell, is regarded as a cost-efficient and energy-efficient approach to resolve increasing demand for data bandwidth and thus has received a lot of attention from research and industry. Since small cells share the same licensed spectrum with macrocells, concurrent transmission induces severe interference, which causes performance degradation, particularly when coordination among small cell base stations (BSs) is infeasible. Given the dense, massive, and unplanned deployment of small cells, mitigating interference in a distributed manner is a challenge and has been explored in recent papers. An efficient and innovative approach is to apply cognitive radio (CR) into HetNet, which enables small cells to sense and to adapt to their surrounding environments. Consequently, stations in each small cell are able to acquire additional information from surrounding environments and opportunistically operate in the spectrum hole, constrained by minimal inducing interference. This paper summarizes and highlights the CR-based interference mitigation approaches in orthogonal frequency division multiple access (OFDMA)-based HetNet networks. With special discussing the role of sensed information at small cells for the interference mitigation, this paper presents the potential cross-layer facilitation of the CR-enable HetNet.

Publication: IEICE TRANSACTIONS on Communications Vol.E96-B No.6 pp.1230-1242

Publication Date: 2013/06/01

Publicized

Online ISSN: 1745-1345

DOI: 10.1587/transcom.E96.B.1230

Type of Manuscript: Special Section INVITED PAPER (Special Section on Heterogeneous Networks for Future Cellular Systems)

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Authors

Shao-Yu LIEN
  National Formosa University
Shin-Ming CHENG
  National Taiwan University of Science and Technology
Kwang-Cheng CHEN
  National Taiwan University

Keyword

heterogeneous networks (HetNet), small cell, interference management, interference mitigation, cognitive radio

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Shao-Yu LIEN, Shin-Ming CHENG, Kwang-Cheng CHEN, "Interference Mitigation in CR-Enabled Heterogeneous Networks" in IEICE TRANSACTIONS on Communications, vol. E96-B, no. 6, pp. 1230-1242, June 2013, doi: 10.1587/transcom.E96.B.1230.
Abstract: The heterogeneous network (HetNet), which deploys small cells such as picocells, femotcells, and relay nodes within macrocell, is regarded as a cost-efficient and energy-efficient approach to resolve increasing demand for data bandwidth and thus has received a lot of attention from research and industry. Since small cells share the same licensed spectrum with macrocells, concurrent transmission induces severe interference, which causes performance degradation, particularly when coordination among small cell base stations (BSs) is infeasible. Given the dense, massive, and unplanned deployment of small cells, mitigating interference in a distributed manner is a challenge and has been explored in recent papers. An efficient and innovative approach is to apply cognitive radio (CR) into HetNet, which enables small cells to sense and to adapt to their surrounding environments. Consequently, stations in each small cell are able to acquire additional information from surrounding environments and opportunistically operate in the spectrum hole, constrained by minimal inducing interference. This paper summarizes and highlights the CR-based interference mitigation approaches in orthogonal frequency division multiple access (OFDMA)-based HetNet networks. With special discussing the role of sensed information at small cells for the interference mitigation, this paper presents the potential cross-layer facilitation of the CR-enable HetNet.
URL: https://globals.ieice.org/en_transactions/communications/10.1587/transcom.E96.B.1230/_p

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@ARTICLE{e96-b_6_1230,
author={Shao-Yu LIEN, Shin-Ming CHENG, Kwang-Cheng CHEN, },
journal={IEICE TRANSACTIONS on Communications},
title={Interference Mitigation in CR-Enabled Heterogeneous Networks},
year={2013},
volume={E96-B},
number={6},
pages={1230-1242},
abstract={The heterogeneous network (HetNet), which deploys small cells such as picocells, femotcells, and relay nodes within macrocell, is regarded as a cost-efficient and energy-efficient approach to resolve increasing demand for data bandwidth and thus has received a lot of attention from research and industry. Since small cells share the same licensed spectrum with macrocells, concurrent transmission induces severe interference, which causes performance degradation, particularly when coordination among small cell base stations (BSs) is infeasible. Given the dense, massive, and unplanned deployment of small cells, mitigating interference in a distributed manner is a challenge and has been explored in recent papers. An efficient and innovative approach is to apply cognitive radio (CR) into HetNet, which enables small cells to sense and to adapt to their surrounding environments. Consequently, stations in each small cell are able to acquire additional information from surrounding environments and opportunistically operate in the spectrum hole, constrained by minimal inducing interference. This paper summarizes and highlights the CR-based interference mitigation approaches in orthogonal frequency division multiple access (OFDMA)-based HetNet networks. With special discussing the role of sensed information at small cells for the interference mitigation, this paper presents the potential cross-layer facilitation of the CR-enable HetNet.},
keywords={},
doi={10.1587/transcom.E96.B.1230},
ISSN={1745-1345},
month={June},}

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TY - JOUR
TI - Interference Mitigation in CR-Enabled Heterogeneous Networks
T2 - IEICE TRANSACTIONS on Communications
SP - 1230
EP - 1242
AU - Shao-Yu LIEN
AU - Shin-Ming CHENG
AU - Kwang-Cheng CHEN
PY - 2013
DO - 10.1587/transcom.E96.B.1230
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E96-B
IS - 6
JA - IEICE TRANSACTIONS on Communications
Y1 - June 2013
AB - The heterogeneous network (HetNet), which deploys small cells such as picocells, femotcells, and relay nodes within macrocell, is regarded as a cost-efficient and energy-efficient approach to resolve increasing demand for data bandwidth and thus has received a lot of attention from research and industry. Since small cells share the same licensed spectrum with macrocells, concurrent transmission induces severe interference, which causes performance degradation, particularly when coordination among small cell base stations (BSs) is infeasible. Given the dense, massive, and unplanned deployment of small cells, mitigating interference in a distributed manner is a challenge and has been explored in recent papers. An efficient and innovative approach is to apply cognitive radio (CR) into HetNet, which enables small cells to sense and to adapt to their surrounding environments. Consequently, stations in each small cell are able to acquire additional information from surrounding environments and opportunistically operate in the spectrum hole, constrained by minimal inducing interference. This paper summarizes and highlights the CR-based interference mitigation approaches in orthogonal frequency division multiple access (OFDMA)-based HetNet networks. With special discussing the role of sensed information at small cells for the interference mitigation, this paper presents the potential cross-layer facilitation of the CR-enable HetNet.
ER -