Interference nulling for offloaded heterogeneous users using macro generalized inverse precoder

Yifei Huang; Salman Durrani; Xiangyun Zhou

doi:10.1109/ISCIT.2015.7458305

Interference nulling for offloaded heterogeneous users using macro generalized inverse precoder

Yifei Huang, Salman Durrani, Xiangyun Zhou

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

Abstract

Heterogeneous networks are a crucial paradigm that will allow future mobile networks to meet growing wireless traffic demands. An important issue in heterogeneous networks is the crosstier interference between femtocells and macrocells. In this paper, we show that a generalized inverse precoder at the macro base station can null interference to offloaded femtocell users. Under ideal conditions, the precoder can achieve perfect interference nulling, and achieve interference suppression using practical suboptimal methods under non-ideal conditions. Simulations show that even with realistic imperfect channel state information, our precoder achieves significant interference suppression while maintaining zero macro inter-user interference.

Original language	English
Title of host publication	2015 15th International Symposium on Communications and Information Technologies, ISCIT 2015
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	53-56
Number of pages	4
ISBN (Electronic)	9781467368209
DOIs	https://doi.org/10.1109/ISCIT.2015.7458305
Publication status	Published - 22 Apr 2016
Event	15th International Symposium on Communications and Information Technologies, ISCIT 2015 - Nara, Japan Duration: 7 Oct 2015 → 9 Oct 2015

Publication series

Name	2015 15th International Symposium on Communications and Information Technologies, ISCIT 2015

Conference

Conference	15th International Symposium on Communications and Information Technologies, ISCIT 2015
Country/Territory	Japan
City	Nara
Period	7/10/15 → 9/10/15

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10.1109/ISCIT.2015.7458305

Cite this

Huang, Y., Durrani, S., & Zhou, X. (2016). Interference nulling for offloaded heterogeneous users using macro generalized inverse precoder. In 2015 15th International Symposium on Communications and Information Technologies, ISCIT 2015 (pp. 53-56). Article 7458305 (2015 15th International Symposium on Communications and Information Technologies, ISCIT 2015). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISCIT.2015.7458305

Huang, Yifei ; Durrani, Salman ; Zhou, Xiangyun. / Interference nulling for offloaded heterogeneous users using macro generalized inverse precoder. 2015 15th International Symposium on Communications and Information Technologies, ISCIT 2015. Institute of Electrical and Electronics Engineers Inc., 2016. pp. 53-56 (2015 15th International Symposium on Communications and Information Technologies, ISCIT 2015).

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abstract = "Heterogeneous networks are a crucial paradigm that will allow future mobile networks to meet growing wireless traffic demands. An important issue in heterogeneous networks is the crosstier interference between femtocells and macrocells. In this paper, we show that a generalized inverse precoder at the macro base station can null interference to offloaded femtocell users. Under ideal conditions, the precoder can achieve perfect interference nulling, and achieve interference suppression using practical suboptimal methods under non-ideal conditions. Simulations show that even with realistic imperfect channel state information, our precoder achieves significant interference suppression while maintaining zero macro inter-user interference.",

keywords = "Heterogeneous networks, interference management, interference nulling, nullspace, precoder",

author = "Yifei Huang and Salman Durrani and Xiangyun Zhou",

note = "Publisher Copyright: {\textcopyright} 2015 IEEE.; 15th International Symposium on Communications and Information Technologies, ISCIT 2015 ; Conference date: 07-10-2015 Through 09-10-2015",

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language = "English",

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Huang, Y, Durrani, S & Zhou, X 2016, Interference nulling for offloaded heterogeneous users using macro generalized inverse precoder. in 2015 15th International Symposium on Communications and Information Technologies, ISCIT 2015., 7458305, 2015 15th International Symposium on Communications and Information Technologies, ISCIT 2015, Institute of Electrical and Electronics Engineers Inc., pp. 53-56, 15th International Symposium on Communications and Information Technologies, ISCIT 2015, Nara, Japan, 7/10/15. https://doi.org/10.1109/ISCIT.2015.7458305

Interference nulling for offloaded heterogeneous users using macro generalized inverse precoder. / Huang, Yifei; Durrani, Salman ; Zhou, Xiangyun.
2015 15th International Symposium on Communications and Information Technologies, ISCIT 2015. Institute of Electrical and Electronics Engineers Inc., 2016. p. 53-56 7458305 (2015 15th International Symposium on Communications and Information Technologies, ISCIT 2015).

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

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N2 - Heterogeneous networks are a crucial paradigm that will allow future mobile networks to meet growing wireless traffic demands. An important issue in heterogeneous networks is the crosstier interference between femtocells and macrocells. In this paper, we show that a generalized inverse precoder at the macro base station can null interference to offloaded femtocell users. Under ideal conditions, the precoder can achieve perfect interference nulling, and achieve interference suppression using practical suboptimal methods under non-ideal conditions. Simulations show that even with realistic imperfect channel state information, our precoder achieves significant interference suppression while maintaining zero macro inter-user interference.

AB - Heterogeneous networks are a crucial paradigm that will allow future mobile networks to meet growing wireless traffic demands. An important issue in heterogeneous networks is the crosstier interference between femtocells and macrocells. In this paper, we show that a generalized inverse precoder at the macro base station can null interference to offloaded femtocell users. Under ideal conditions, the precoder can achieve perfect interference nulling, and achieve interference suppression using practical suboptimal methods under non-ideal conditions. Simulations show that even with realistic imperfect channel state information, our precoder achieves significant interference suppression while maintaining zero macro inter-user interference.

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EP - 56

BT - 2015 15th International Symposium on Communications and Information Technologies, ISCIT 2015

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 15th International Symposium on Communications and Information Technologies, ISCIT 2015

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Huang Y, Durrani S , Zhou X. Interference nulling for offloaded heterogeneous users using macro generalized inverse precoder. In 2015 15th International Symposium on Communications and Information Technologies, ISCIT 2015. Institute of Electrical and Electronics Engineers Inc. 2016. p. 53-56. 7458305. (2015 15th International Symposium on Communications and Information Technologies, ISCIT 2015). doi: 10.1109/ISCIT.2015.7458305

Interference nulling for offloaded heterogeneous users using macro generalized inverse precoder

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