Title :
IQ Cross-talk Compensation in Fading Channels
Author :
Palipana, Rajitha Bandara ; Chung, Kah-Seng
Author_Institution :
Curtin Univ. of Technol., Perth, WA
fDate :
Aug. 31 2006-Sept. 1 2006
Abstract :
This paper discusses IQ cross-talk estimation and compensation in direct-conversion receivers for terrestrial digital video broadcasting (DVB-T). The IQ cross-talk is estimated using the pilots in the frequency domain while the effects of IQ cross-talk are cancelled in time domain. First, IQ cross-talk estimation and cancellation techniques are explained for additive white Gaussian channels. Then the implications of the presence of multi-path fading channels are analyzed. Finally, the effectiveness of the IQ imbalance compensation techniques is evaluated using an end-to-end DVB-T model
Keywords :
AWGN channels; crosstalk; digital video broadcasting; fading channels; frequency-domain analysis; multipath channels; radio receivers; DVB-T; IQ cross-talk compensation; IQ cross-talk estimation; additive white Gaussian channel; direct-conversion receiver; frequency domain analysis; multipath fading channel; terrestrial digital video broadcasting; Australia; Baseband; Convergence; Digital video broadcasting; Equalizers; Fading; Frequency domain analysis; Frequency estimation; Gaussian channels; OFDM;
Conference_Titel :
Communications, 2006. APCC '06. Asia-Pacific Conference on
Conference_Location :
Busan
Print_ISBN :
1-4244-0573-4
Electronic_ISBN :
1-4244-0574-2
DOI :
10.1109/APCC.2006.255904
