Interference Mitigation in Cognitive Femtocells

Gustavo Wagner Oliveira Da Costa, Andrea Fabio Cattoni, Victor Alvarez Roig, Preben Mogensen

Research output: Contribution to journalConference article in JournalResearchpeer-review

13 Citations (Scopus)

Abstract

Femtocells are expected to take a major role on increasing the data rates on cellular network access over the next years. However, femtocells pose significant challenges, especially in terms of interference management and mitigation. In femtocell scenario, the costs for tradional network planning, management and optimization can be prohibitive. Instead, self-optimization of an uncoordinated deployment should be considered. Cognitive Radio enabled femtocells are considered to be a promising solution to enable self-optimizing femtocells to effectively manage the inter-cell interference, especially in densely deployed femto scenarios. In this paper, two key elements of cognitive femtocells are combined: a power control algorithm and a fully distributed dynamic spectrum allocation method. The resulting solution was evaluated through system-level simulations and compared to the separate algorithms and fixed frequency reuses. The outage throughput performance of the combined algorithm exceeds all other options, proving the efficiency of the method in reducing inter-cell interference.
Original languageEnglish
JournalGlobecom. I E E E Global Telecommunications Conference
Volume2010
Pages (from-to)721-725
ISSN1930-529X
DOIs
Publication statusPublished - 2010
EventIEEE GLOBAL COMMUNICATIONS CONFERENCE, IEEE GLOBECOM 2010 - Miami, United States
Duration: 6 Dec 201010 Dec 2010
http://www.ieee-globecom.org/2010/

Conference

ConferenceIEEE GLOBAL COMMUNICATIONS CONFERENCE, IEEE GLOBECOM 2010
CountryUnited States
CityMiami
Period06/12/201010/12/2010
Internet address

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