Design of new training sequence and estimation scheme for frequency dependent I/Q imbalance in MB-OFDM based UWB systems
Författare
Summary, in English
This paper analyzes the I/Q imbalance effect of direct-conversion receiver in wide-band wireless communication system and sets up frequency-selective I/Q imbalance model for ultra-wide band system. We design a new training sequence based on extra phase rotation and propose an estimation algorithm using diversity message introduced by I/Q imbalance during the demodulation process. Theoretical analysis and simulation results based on typical MB-OFDM based UWB system confirm that the estimation scheme proposed in this paper can achieve 5 dB EbNo advantage at PER=8%.
Publiceringsår
2009
Språk
Engelska
Sidor
509-512
Publikation/Tidskrift/Serie
[Host publication title missing]
Dokumenttyp
Konferensbidrag
Ämne
- Electrical Engineering, Electronic Engineering, Information Engineering
Conference name
IEEE 8th International Conference on ASIC (ASICON '09)
Conference date
2009-10-20 - 2009-10-23
Status
Published
ISBN/ISSN/Övrigt
- ISBN: 978-1-4244-3868-6