Title :
Dominant interferer mitigation in closed femtocell deployment
Author :
Husso, Mika ; Zheng, Zhong ; Hämäläinen, Jyri ; Mutafungwa, Edward
Author_Institution :
Dept. of Commun. & Networking, Aalto Univ., Espoo, Finland
Abstract :
In this paper, we analyze the interference distribution and gain of beamforming in closed access femtocells in downlink of a two-tier HSDPA cellular network. We show through simulations that indoor femtocell deployment leads to a dominant interferer scenario. According to results even simple null steering method based on the scarce codebook of HSDPA transmit diversity mode 1 can be beneficially applied. Performance evaluations are carried out through HSDPA compliant system simulations.
Keywords :
3G mobile communication; array signal processing; code division multiple access; femtocellular radio; packet radio networks; radiofrequency interference; HSDPA compliant system simulations; beamforming; closed femtocell deployment; dominant interferer mitigation; interference distribution; null steering method; scarce codebook; two-tier HSDPA cellular network; Array signal processing; Downlink; Interference; Macrocell networks; Multiaccess communication; Signal to noise ratio; Spread spectrum communication; Femtocells; HSDPA; dominant interferer; interference mitigation; transmit beamforming;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications Workshops (PIMRC Workshops), 2010 IEEE 21st International Symposium on
Conference_Location :
Instanbul
Print_ISBN :
978-1-4244-9117-9
DOI :
10.1109/PIMRCW.2010.5670355
