Wi-Fi co-channel interference suppression approach in LTE uplink

Autor: Wan-zhi MA, Hong-zhi ZHAO, Hui-yue YU, Jun WANG, You-xi TANG
Jazyk: čínština
Rok vydání: 2012
Předmět:
Zdroj: Tongxin xuebao, Vol 33, Pp 106-112 (2012)
Druh dokumentu: article
ISSN: 1000-436X
Popis: Considering the Wi-Fi co-channel interference in the 3rd generation mobile communication long term evolution (LTE) uplink with multi-received antennas,a new combining approach named interference reconstruction rejection Combining was proposed.Firstly,as the covariance matrix approximation of the interference,the covariance matrix of the received signal was estimated.Secondly,the desired signal was reconstructed by interference rejection combining.Then,the interference was reconstructed by removing the desired signal.At last,the covariance matrix of the interference was estimated again for interference rejection combining.Simulation results over multipath fading channels show that the IRRC approach based on the minimum mean square error outperformed the conventional IRC approach about 2dB when the signal in LTE uplink is modulated by QPSK with 1 transmit antenna and 2 receive antennas,and the jam to signal ratio is 0dB.
Databáze: Directory of Open Access Journals