Title :
CM-adaptive image-band interference canceller for OFDM systems
Author_Institution :
NTT DoCoMo, inc, Tokyo, Japan
Abstract :
The paper proposes a multiband reception scheme based on heterodyne reception with a novel adaptive image-band interference canceller which can be applied to OFDM-based systems. Performance of the proposed canceller is evaluated by computer simulation that keeps performance in channels with CIR of -60 dB as much as that in AWGN with CIR = -60 dB. The canceller is confirmed to suppress the image-band interference as long as the orthogonality error in RF-QCD as a Hilbert transformer is less than 40 degrees.
Keywords :
4G mobile communication; OFDM modulation; adaptive signal processing; heterodyne detection; interference suppression; radio reception; radiofrequency interference; 4G communications; Hilbert transformer; OFDM systems; adaptive image-band interference canceller; heterodyne reception; heterogeneous wireless networks; interference suppression; mobile terminals; multiband reception scheme; orthogonality error; software defined radio; GSM; Interference cancellation; Interference elimination; Interference suppression; Neck; OFDM; Radio frequency; Signal processing; Wireless LAN; Wireless networks;
Conference_Titel :
Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th
Print_ISBN :
0-7803-8521-7
DOI :
10.1109/VETECF.2004.1400093
