Title :
A soft interference cancellation method in OFDMA uplink
Author :
Dong, Chao ; Niu, Kai ; Bie, Zhisong ; Lin, Jiaru
Author_Institution :
Key Lab of Universal Wireless Communications, Ministry of Education Beijing University of Posts and Telecommunicatons
Abstract :
In OFDMA uplink, each user is affected by different frequency offsets, which destroy the orthogonality between subcarriers, introduce inter-carrier interference, and seriously lower the BER performance. So the inter-carrier interference cancellation is indispensable at the receiver. A soft interference cancellation method is proposed in this paper, which combines frequency offsets compensation with channel decoding, and exhibits good convergence performance.
Keywords :
OFDMA; interference cancellation; iterative receiver;
Conference_Titel :
Wireless Mobile and Computing (CCWMC 2009), IET International Communication Conference on
Conference_Location :
Shanghai, China
