Interference Rejection Characteristics by Adaptive Array at User Equipment Using Measured K-Factor in Heterogeneous Networks
Summary :
In LTE-Advanced heterogeneous networks, a typical cell layout to enhance frequency utilization is to incorporate picocells and femtocells in a macrocell. However, the co-channel interference between the marcocell and picocell/femtocell is an important issue when the same frequency band is used between these systems. We have already clarified how the interference from the femto(macro) cell affects on the macro(femto) cell. In this paper, we evaluate the interference rejection characteristics by an adaptive array with user equipment (UE). The characteristics are evaluated based on the K-factor used in the Nakagami-Race Fading model and the spatial correlation that is obtained in an actual outdoor environment. It is shown that a two-element adaptive array at the macro UE (M-UE) can sufficiently reduce the interference from the femto base station (F-BS) to the M-UE even if the number of total signals exceeds the degrees of freedom of the array.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E96-B No.6 pp.1256-1264
- Publication Date
- 2013/06/01
- Publicized
- Online ISSN
- 1745-1345
- DOI
- 10.1587/transcom.E96.B.1256
- Type of Manuscript
- Special Section PAPER (Special Section on Heterogeneous Networks for Future Cellular Systems)
- Category
Authors
Kentaro NISHIMORI
Niigata University
Keisuke KUSUMI
Niigata University
Misaki HORIO
Niigata University
Koshiro KITAO
NTT DOCOMO, INC.
Tetsuro IMAI
NTT DOCOMO, INC.
Keyword
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Kentaro NISHIMORI, Keisuke KUSUMI, Misaki HORIO, Koshiro KITAO, Tetsuro IMAI, "Interference Rejection Characteristics by Adaptive Array at User Equipment Using Measured K-Factor in Heterogeneous Networks" in IEICE TRANSACTIONS on Communications,
vol. E96-B, no. 6, pp. 1256-1264, June 2013, doi: 10.1587/transcom.E96.B.1256.
Abstract: In LTE-Advanced heterogeneous networks, a typical cell layout to enhance frequency utilization is to incorporate picocells and femtocells in a macrocell. However, the co-channel interference between the marcocell and picocell/femtocell is an important issue when the same frequency band is used between these systems. We have already clarified how the interference from the femto(macro) cell affects on the macro(femto) cell. In this paper, we evaluate the interference rejection characteristics by an adaptive array with user equipment (UE). The characteristics are evaluated based on the K-factor used in the Nakagami-Race Fading model and the spatial correlation that is obtained in an actual outdoor environment. It is shown that a two-element adaptive array at the macro UE (M-UE) can sufficiently reduce the interference from the femto base station (F-BS) to the M-UE even if the number of total signals exceeds the degrees of freedom of the array.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E96.B.1256/_p
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@ARTICLE{e96-b_6_1256,
author={Kentaro NISHIMORI, Keisuke KUSUMI, Misaki HORIO, Koshiro KITAO, Tetsuro IMAI, },
journal={IEICE TRANSACTIONS on Communications},
title={Interference Rejection Characteristics by Adaptive Array at User Equipment Using Measured K-Factor in Heterogeneous Networks},
year={2013},
volume={E96-B},
number={6},
pages={1256-1264},
abstract={In LTE-Advanced heterogeneous networks, a typical cell layout to enhance frequency utilization is to incorporate picocells and femtocells in a macrocell. However, the co-channel interference between the marcocell and picocell/femtocell is an important issue when the same frequency band is used between these systems. We have already clarified how the interference from the femto(macro) cell affects on the macro(femto) cell. In this paper, we evaluate the interference rejection characteristics by an adaptive array with user equipment (UE). The characteristics are evaluated based on the K-factor used in the Nakagami-Race Fading model and the spatial correlation that is obtained in an actual outdoor environment. It is shown that a two-element adaptive array at the macro UE (M-UE) can sufficiently reduce the interference from the femto base station (F-BS) to the M-UE even if the number of total signals exceeds the degrees of freedom of the array.},
keywords={},
doi={10.1587/transcom.E96.B.1256},
ISSN={1745-1345},
month={June},}
Copy
TY - JOUR
TI - Interference Rejection Characteristics by Adaptive Array at User Equipment Using Measured K-Factor in Heterogeneous Networks
T2 - IEICE TRANSACTIONS on Communications
SP - 1256
EP - 1264
AU - Kentaro NISHIMORI
AU - Keisuke KUSUMI
AU - Misaki HORIO
AU - Koshiro KITAO
AU - Tetsuro IMAI
PY - 2013
DO - 10.1587/transcom.E96.B.1256
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E96-B
IS - 6
JA - IEICE TRANSACTIONS on Communications
Y1 - June 2013
AB - In LTE-Advanced heterogeneous networks, a typical cell layout to enhance frequency utilization is to incorporate picocells and femtocells in a macrocell. However, the co-channel interference between the marcocell and picocell/femtocell is an important issue when the same frequency band is used between these systems. We have already clarified how the interference from the femto(macro) cell affects on the macro(femto) cell. In this paper, we evaluate the interference rejection characteristics by an adaptive array with user equipment (UE). The characteristics are evaluated based on the K-factor used in the Nakagami-Race Fading model and the spatial correlation that is obtained in an actual outdoor environment. It is shown that a two-element adaptive array at the macro UE (M-UE) can sufficiently reduce the interference from the femto base station (F-BS) to the M-UE even if the number of total signals exceeds the degrees of freedom of the array.
ER -
English
