naa a22 4500 510792650 CHVBK 20180411083325.0 cr unu---uuuuu 180411e20130701xx s 000 0 eng 10.1007/s11277-012-0863-4 doi (NATIONALLICENCE)springer-10.1007/s11277-012-0863-4 Carrier Frequency Offset and I/Q Imbalance Compensation for MB-OFDM Based UWB System [Elektronische Daten] [Liang Liu, Junyan Ren, Jun Zhou, Fan Ye] Two types of wireless communication system imperfections, namely carrier frequency offset (CFO) and in-phase/quadrature-phase (I/Q) imbalance, are addressed in this paper. We propose an efficient time domain CFO and I/Q imbalance estimation and compensation scheme for multi-band orthogonal frequency division multiplexing based ultra-wideband system. In this scheme, a data-aided CFO estimation algorithm, which is robust to a large I/Q imbalance, is presented. Also, a time domain I/Q imbalance estimation algorithm based on partially CFO compensated preambles is introduced. Finally a two-step joint CFO and I/Q imbalance compensation scheme is developed. Taking full advantage of the ECMA-368 preamble symbols, the proposed scheme is competent for large I/Q imbalance (2-dB gain error and 20-deg Phase error) and carrier frequency offset (50ppm), and the results are confirmed by simulations. Springer Science+Business Media New York, 2012 MB-OFDM nationallicence UWB nationallicence CFO nationallicence I/Q imbalance nationallicence Liu Liang State Key Lab of ASIC & System, Micro/Nano-Electronics Innovation Platform Fudan University, 201203, Shanghai, People's Republic of China aut Ren Junyan State Key Lab of ASIC & System, Micro/Nano-Electronics Innovation Platform Fudan University, 201203, Shanghai, People's Republic of China aut Zhou Jun State Key Lab of ASIC & System, Micro/Nano-Electronics Innovation Platform Fudan University, 201203, Shanghai, People's Republic of China aut Ye Fan State Key Lab of ASIC & System, Micro/Nano-Electronics Innovation Platform Fudan University, 201203, Shanghai, People's Republic of China aut Wireless Personal Communications Springer US; http://www.springer-ny.com 71/2(2013-07-01), 1095-1107 0929-6212 71:2<1095 2013 71 11277 https://doi.org/10.1007/s11277-012-0863-4 text/html Onlinezugriff via DOI 1 brief-communication jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-012-0863-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Liu Liang State Key Lab of ASIC & System, Micro/Nano-Electronics Innovation Platform Fudan University, 201203, Shanghai, People's Republic of China aut NATIONALLICENCE 700 1- Ren Junyan State Key Lab of ASIC & System, Micro/Nano-Electronics Innovation Platform Fudan University, 201203, Shanghai, People's Republic of China aut NATIONALLICENCE 700 1- Zhou Jun State Key Lab of ASIC & System, Micro/Nano-Electronics Innovation Platform Fudan University, 201203, Shanghai, People's Republic of China aut NATIONALLICENCE 700 1- Ye Fan State Key Lab of ASIC & System, Micro/Nano-Electronics Innovation Platform Fudan University, 201203, Shanghai, People's Republic of China aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 71/2(2013-07-01), 1095-1107 0929-6212 71:2<1095 2013 71 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer