Interference mitigation using uplink power control for two-tier femtocell networks

Han Shin Jo, Cheol Mun, June Moon, Jong Gwan Yook

Research output: Contribution to journalArticle

232 Citations (Scopus)


This paper proposes two interference mitigation strategies that adjust the maximum transmit power of femtocell users to suppress the cross-tier interference at a macrocell base station (BS). The open-loop and the closed-loop control suppress the cross-tier interference less than a fixed threshold and an adaptive threshold based on the noise and interference (NI) level at the macrocell BS, respectively. Simulation results show that both schemes effectively compensate the uplink throughput degradation of the macrocell BS due to the cross-tier interference and that the closed-loop control provides better femtocell throughput than the open-loop control at a minimal cost of macrocell throughput.

Original languageEnglish
Article number5288919
Pages (from-to)4906-4910
Number of pages5
JournalIEEE Transactions on Wireless Communications
Issue number10
Publication statusPublished - 2009 Oct

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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