Joint optimization on inter-cell interference management and user attachment in LTE-A HetNets

Ye Liu; Chung Shue Chen; Chi Wan Sung

doi:10.1109/WIOPT.2015.7151054

Joint optimization on inter-cell interference management and user attachment in LTE-A HetNets

Ye Liu, Chung Shue Chen, Chi Wan Sung

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding

4 Citations (Scopus)

Abstract

To optimize the network utility in 3GPP Long Term Evolution-Advanced (LTE-A) heterogeneous networks (HetNets), it is necessary to jointly consider inter-cell interference mitigation and user attachment. Based on potential game formulation, we optimize almost blank subframe (ABS) and/or cell selection bias (CSB) settings for both macrocells and picocells in a distributed manner. We demonstrate the need of joint ABS and CSB optimization via simulation case studies. Extensive simulations confirm that joint ABS and CSB optimizations can lead to a 20% improvement in spectral efficiency and a 46% improvement in energy efficiency while increasing the fairness of the achieved rates of users.

Original language	English
Title of host publication	13th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt)
Publisher	IEEE
Pages	62-69
Number of pages	8
ISBN (Electronic)	978-3-9018-8274-6
DOIs	https://doi.org/10.1109/WIOPT.2015.7151054
Publication status	Published - 9 Jul 2015
Externally published	Yes
Event	13th International Symposium on Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks - Mumbai, India Duration: 25 May 2015 → 28 May 2015 http://www.wi-opt.org/

Conference

Conference	13th International Symposium on Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks
Abbreviated title	WiOpt 2015
Country	India
City	Mumbai
Period	25/05/15 → 28/05/15
Internet address	http://www.wi-opt.org/

Bibliographical note

© 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

Keywords

Macrocell networks
Optimization
Games
Throughput
Interference
Joints
Resource management

Access to Document

10.1109/WIOPT.2015.7151054

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Cite this

Liu, Y., Chen, C. S., & Sung, C. W. (2015). Joint optimization on inter-cell interference management and user attachment in LTE-A HetNets. In 13th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt) (pp. 62-69). IEEE. https://doi.org/10.1109/WIOPT.2015.7151054

Liu, Y, Chen, CS & Sung, CW 2015, Joint optimization on inter-cell interference management and user attachment in LTE-A HetNets. in 13th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt). IEEE, pp. 62-69, 13th International Symposium on Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks, Mumbai, India, 25/05/15. https://doi.org/10.1109/WIOPT.2015.7151054

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abstract = "To optimize the network utility in 3GPP Long Term Evolution-Advanced (LTE-A) heterogeneous networks (HetNets), it is necessary to jointly consider inter-cell interference mitigation and user attachment. Based on potential game formulation, we optimize almost blank subframe (ABS) and/or cell selection bias (CSB) settings for both macrocells and picocells in a distributed manner. We demonstrate the need of joint ABS and CSB optimization via simulation case studies. Extensive simulations confirm that joint ABS and CSB optimizations can lead to a 20{\%} improvement in spectral efficiency and a 46{\%} improvement in energy efficiency while increasing the fairness of the achieved rates of users.",

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AB - To optimize the network utility in 3GPP Long Term Evolution-Advanced (LTE-A) heterogeneous networks (HetNets), it is necessary to jointly consider inter-cell interference mitigation and user attachment. Based on potential game formulation, we optimize almost blank subframe (ABS) and/or cell selection bias (CSB) settings for both macrocells and picocells in a distributed manner. We demonstrate the need of joint ABS and CSB optimization via simulation case studies. Extensive simulations confirm that joint ABS and CSB optimizations can lead to a 20% improvement in spectral efficiency and a 46% improvement in energy efficiency while increasing the fairness of the achieved rates of users.

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