Adaptive Spatial Other Cell Interference Cancelation for Multiuser Multi-Cell Cooperating System

Jin-Hee LEE; Young-Chai KO

doi:10.1587/transcom.E94.B.3232

Adaptive Spatial Other Cell Interference Cancelation for Multiuser Multi-Cell Cooperating System

Jin-Hee LEE, Young-Chai KO

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In multi-cell wireless systems with insufficient frequency reuse, the downlink transmission suffers from other cell interference (OCI). The cooperative transmission among multiple base stations is an effective way to mitigate OCI and increase the system sum rate. An adaptive scheme for serving one user in each cell was proposed in [1]. In this paper, we generalize the scheme in [1] by serving more than one user in each cell with adaptive OCI cancelation. Based on our derived statistics of a user for different transmission strategies, we propose a low complexity transmission scheme that achieves near-maximal ergodic sum rate. Through numerical examples, we show that the system sum rate can be improved by selecting the appropriate transmission strategy combination adaptively. As a result, our proposed system can explore spatial multiplexing gain without additional power and thus improves the system sum rate significantly.

Publication: IEICE TRANSACTIONS on Communications Vol.E94-B No.12 pp.3232-3238

Publication Date: 2011/12/01

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Online ISSN: 1745-1345

DOI: 10.1587/transcom.E94.B.3232

Type of Manuscript: Special Section PAPER (Special Section on Cooperative Communications for Cellular Networks)

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Jin-Hee LEE, Young-Chai KO, "Adaptive Spatial Other Cell Interference Cancelation for Multiuser Multi-Cell Cooperating System" in IEICE TRANSACTIONS on Communications, vol. E94-B, no. 12, pp. 3232-3238, December 2011, doi: 10.1587/transcom.E94.B.3232.
Abstract: In multi-cell wireless systems with insufficient frequency reuse, the downlink transmission suffers from other cell interference (OCI). The cooperative transmission among multiple base stations is an effective way to mitigate OCI and increase the system sum rate. An adaptive scheme for serving one user in each cell was proposed in [1]. In this paper, we generalize the scheme in [1] by serving more than one user in each cell with adaptive OCI cancelation. Based on our derived statistics of a user for different transmission strategies, we propose a low complexity transmission scheme that achieves near-maximal ergodic sum rate. Through numerical examples, we show that the system sum rate can be improved by selecting the appropriate transmission strategy combination adaptively. As a result, our proposed system can explore spatial multiplexing gain without additional power and thus improves the system sum rate significantly.
URL: https://globals.ieice.org/en_transactions/communications/10.1587/transcom.E94.B.3232/_p

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@ARTICLE{e94-b_12_3232,
author={Jin-Hee LEE, Young-Chai KO, },
journal={IEICE TRANSACTIONS on Communications},
title={Adaptive Spatial Other Cell Interference Cancelation for Multiuser Multi-Cell Cooperating System},
year={2011},
volume={E94-B},
number={12},
pages={3232-3238},
abstract={In multi-cell wireless systems with insufficient frequency reuse, the downlink transmission suffers from other cell interference (OCI). The cooperative transmission among multiple base stations is an effective way to mitigate OCI and increase the system sum rate. An adaptive scheme for serving one user in each cell was proposed in [1]. In this paper, we generalize the scheme in [1] by serving more than one user in each cell with adaptive OCI cancelation. Based on our derived statistics of a user for different transmission strategies, we propose a low complexity transmission scheme that achieves near-maximal ergodic sum rate. Through numerical examples, we show that the system sum rate can be improved by selecting the appropriate transmission strategy combination adaptively. As a result, our proposed system can explore spatial multiplexing gain without additional power and thus improves the system sum rate significantly.},
keywords={},
doi={10.1587/transcom.E94.B.3232},
ISSN={1745-1345},
month={December},}

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TY - JOUR
TI - Adaptive Spatial Other Cell Interference Cancelation for Multiuser Multi-Cell Cooperating System
T2 - IEICE TRANSACTIONS on Communications
SP - 3232
EP - 3238
AU - Jin-Hee LEE
AU - Young-Chai KO
PY - 2011
DO - 10.1587/transcom.E94.B.3232
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E94-B
IS - 12
JA - IEICE TRANSACTIONS on Communications
Y1 - December 2011
AB - In multi-cell wireless systems with insufficient frequency reuse, the downlink transmission suffers from other cell interference (OCI). The cooperative transmission among multiple base stations is an effective way to mitigate OCI and increase the system sum rate. An adaptive scheme for serving one user in each cell was proposed in [1]. In this paper, we generalize the scheme in [1] by serving more than one user in each cell with adaptive OCI cancelation. Based on our derived statistics of a user for different transmission strategies, we propose a low complexity transmission scheme that achieves near-maximal ergodic sum rate. Through numerical examples, we show that the system sum rate can be improved by selecting the appropriate transmission strategy combination adaptively. As a result, our proposed system can explore spatial multiplexing gain without additional power and thus improves the system sum rate significantly.
ER -