Interference Mitigation by Practical Transmit Beamforming Methods in Closed Femtocells

Autor: Mika Husso, Jyri Hämäläinen, Riku Jäntti, Juan Li, Edward Mutafungwa, Risto Wichman, Zhong Zheng, Alexander M. Wyglinski
Jazyk: angličtina
Rok vydání: 2010
Předmět:
Zdroj: EURASIP Journal on Wireless Communications and Networking, Vol 2010 (2010)
Druh dokumentu: article
ISSN: 1687-1472
1687-1499
DOI: 10.1155/2010/186815
Popis: We present an analysis of a femtocellular communications network and the impact of cochannel interference on link performance. Furthermore, we propose a method whereby user terminals can maintain a controlonly connection to an adjacent femtocell for interference mitigation purposes. Specifically, we provide an emphasis on suboptimal but practical methods that rely on transmit beamforming. Our numerical results demonstrate that even simple multiantenna methods can be effectively used to suppress co-channel interference provided that control channel connection between interfering femto-base station and user terminal is allowed.
Databáze: Directory of Open Access Journals