Adaptive power allocation for soft frequency reuse in multi-cell LTE networks

Yiwei Yu*, Eryk Dutkiewicz, Xiaojing Huang, Markus Mueck

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

8 Citations (Scopus)

Abstract

This paper presents a novel power allocation approach for soft frequency reuse (SFR) adopted in a multi-cell LTE network. Based on the fact that major inter-cell interference (ICI) is coordinated by SFR, the proposed power allocation focuses on dealing with mutual interference between cell-edge and cell-center users in the network. It is formulated as an optimization problem, where the performance of cell-edge users is optimized under the condition that desirable performance must be maintained for cell-center users. The optimal solution can be obtained by using the Lagrange decomposition method. Simulation results show that our approach can significantly improve performance of cell-edge users by achieving 20% gain over conventional SFR with average power allocation when higher performance for cell-center users is maintained.

Original languageEnglish
Title of host publication2012 International Symposium on Communications and Information Technologies, ISCIT 2012
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages991-996
Number of pages6
ISBN (Electronic)9781467311571, 9781467311557
ISBN (Print)9781467311564
DOIs
Publication statusPublished - 13 Dec 2012
Event2012 International Symposium on Communications and Information Technologies, ISCIT 2012 - Gold Coast, QLD, Australia
Duration: 2 Oct 20125 Oct 2012

Other

Other2012 International Symposium on Communications and Information Technologies, ISCIT 2012
CountryAustralia
CityGold Coast, QLD
Period2/10/125/10/12

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