A simple decentralized cell association method for heterogeneous networks

Tetsunosuke Koizumi, Kenichi Higuchi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

This paper proposes a simple decentralized cell association method for heterogeneous networks, where low transmission-power pico or femto base stations (BSs) are overlaid onto a high transmission-power macro BS. The focus of this investigation is on the downlink and the purpose of the cell association is to achieve better user fairness, in other words, to increase the minimum average user throughput (worst user throughput). In the proposed method, an appropriate cell association for all users within a cell is achieved in an iterative manner based on the feedback information of each individual user assisted by a small amount of broadcast information from the respective BSs. The proposed method does not require cooperation between BSs. Furthermore, the proposed method is applicable to cases of inter-cell interference coordination (ICIC) between macro and pico/femto BSs through the use of protected radio resources exclusively used by the pico/femto BSs. Based on numerical results, we show that the proposed method adaptively achieves better cell association for all users according to the user location distributions compared to the conventional cell range expansion (CRE) method. The advantage of the proposed method over the CRE is further enhanced in an ICIC scenario.

Original languageEnglish
Title of host publication2012 International Symposium on Wireless Communication Systems, ISWCS 2012 - Proceedings
Pages256-260
Number of pages5
DOIs
Publication statusPublished - 24 Dec 2012
Event2012 9th International Symposium on Wireless Communication Systems, ISWCS 2012 - Paris, France
Duration: 28 Aug 201231 Aug 2012

Publication series

NameProceedings of the International Symposium on Wireless Communication Systems
ISSN (Print)2154-0217
ISSN (Electronic)2154-0225

Conference

Conference2012 9th International Symposium on Wireless Communication Systems, ISWCS 2012
CountryFrance
CityParis
Period28/08/1231/08/12

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Cite this

Koizumi, T., & Higuchi, K. (2012). A simple decentralized cell association method for heterogeneous networks. In 2012 International Symposium on Wireless Communication Systems, ISWCS 2012 - Proceedings (pp. 256-260). [6328369] (Proceedings of the International Symposium on Wireless Communication Systems). https://doi.org/10.1109/ISWCS.2012.6328369