TY - GEN
T1 - A low computing I/Q-mismatch compensator for 3GPP LTE systems
AU - Hsu, Terng-Yin
AU - Lai, Wei Chi
AU - Yeh, Shao Ying
PY - 2012
Y1 - 2012
N2 - Variations of I/Q gains and phases of RF frontend, namely I/Q mismatch (I/Q-M), are the important impact in OFDM-based wireless accesses. Making a 2x2 MIMO-OFDM modem of 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) work properly, this work investigates a low computing cross-ratio engine to deal with serious I/Q-M by using only synchronization signal (SS). Through performance evaluation, our approach incurs a 0.3-dB SNR loss to maintain BER<10 -5 at 1-dB gain error and 15°-phase error. Hence, this work not only ensures adequate performances, but also makes low computing I/Q-M estimation and compensation.
AB - Variations of I/Q gains and phases of RF frontend, namely I/Q mismatch (I/Q-M), are the important impact in OFDM-based wireless accesses. Making a 2x2 MIMO-OFDM modem of 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) work properly, this work investigates a low computing cross-ratio engine to deal with serious I/Q-M by using only synchronization signal (SS). Through performance evaluation, our approach incurs a 0.3-dB SNR loss to maintain BER<10 -5 at 1-dB gain error and 15°-phase error. Hence, this work not only ensures adequate performances, but also makes low computing I/Q-M estimation and compensation.
KW - Cross-Ratio Engine
KW - I/Q Mismatch (I/Q-M)
KW - Long Term Evolution (LTE)
KW - Synchronization Signal (SS)
UR - http://www.scopus.com/inward/record.url?scp=84867879658&partnerID=8YFLogxK
U2 - 10.1109/CSQRWC.2012.6294955
DO - 10.1109/CSQRWC.2012.6294955
M3 - Conference contribution
AN - SCOPUS:84867879658
SN - 9781467318679
T3 - CSQRWC 2012 - 2012 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference
SP - 118
EP - 122
BT - CSQRWC 2012 - 2012 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference
T2 - 2012 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference, CSQRWC 2012
Y2 - 23 July 2012 through 27 July 2012
ER -