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A novel downlink power control scheme in LTE heterogeneous network

  • Zhenwei Wang*
  • , Wenhui Xiong
  • , Caiping Dong
  • , Jun Wang
  • , Shaoqian Li
  • *Corresponding author for this work
  • University of Electronic Science and Technology of China

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

Abstract

Femtocells are low-power user-deployed base stations that operate in licensed spectrum and provide high-quality cellular service in indoor environments. However, there may be severe cross-tier interference between femtocells and macrocells. In this paper, our focus is on downlink traffic channel interference management for macrocell users. We propose a novel interference management scheme in macro-femto cochannel deployment scenario. The femtocell adjusts its maximum transmit power to suppress the cross-tier interference experienced by macro users in its close proximity. Simulation results show that this scheme effectively reduces the interference and compensates the downlink throughput degradation of the macro user. Compared with smart power control scheme based on network listening, the proposed scheme could get a good trade-off between the improvement of macrocell users' throughput and the degradation of femtocell users' throughput.

Original languageEnglish
Title of host publication2011 International Conference on Computational Problem-Solving, ICCP 2011
Pages241-245
Number of pages5
DOIs
StatePublished - 2011
Externally publishedYes
Event2011 International Conference on Computational Problem-Solving, ICCP 2011 - Chengdu, China
Duration: 21 Oct 201123 Oct 2011

Publication series

Name2011 International Conference on Computational Problem-Solving, ICCP 2011

Conference

Conference2011 International Conference on Computational Problem-Solving, ICCP 2011
Country/TerritoryChina
CityChengdu
Period21/10/1123/10/11

Keywords

  • LTE
  • femtocell
  • heterogeneous network
  • power control

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