A downlink power control scheme for interference avoidance in femtocells

T. Zahir, K. Arshad, Youngwook Ko, K. Moessner

Research output: Chapter in Book/Report/Conference proceedingConference contribution

28 Citations (Scopus)

Abstract

Femtocells being small low powered base stations provide sufficient increase in system capacity along with better indoor coverage. However, the dense deployment of femtocells face the main challenge of co channel interference with macrocell users. In this paper, this interference problem is addressed by proposing a novel downlink power control algorithm for femtocells. The proposed algorithm gradually reduces the downlink transmit power of femtocells when they are informed about a nearby macrocell user under interference. This information is given to the femtocells by the macrocell base station through a unidirectional downlink broadcast channel. Simulation results show that the algorithm causes the macrocell to accommodate large number of femtocells within its area, whereas at the same time protecting the macrocell users from any harmful interference.
Original languageEnglish
Title of host publicationIEEE Wireless Communications and Mobile Computing Conference (IWCMC), 2011 7th International
Place of PublicationIstanbul, Turkey
Pages1222-1226
DOIs
Publication statusPublished - Jul 2011
EventIEEE International Wireless Communications and Mobile Computing Conference, 2011 - Istanbul, Turkey
Duration: 04 Jul 201108 Jul 2011

Conference

ConferenceIEEE International Wireless Communications and Mobile Computing Conference, 2011
CountryTurkey
CityIstanbul
Period04/07/201108/07/2011

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