Title :
Impact of Transceiver I/Q Imbalance on Transmit Diversity of Beamforming OFDM Systems
Author :
Maham, Behrouz ; Tirkkonen, Olav ; Hjorungnes, A.
Author_Institution :
Sch. of Electr. & Comput. Eng., Univ. of Tehran, Tehran, Iran
fDate :
3/1/2012 12:00:00 AM
Abstract :
One of the serious imperfections affecting OFDM systems is transceiver I/Q imbalance. In this letter, closed-form expressions for the outage probability of beamforming OFDM systems with transmit and receive I/Q imbalances are derived. Moreover, the asymptotic behavior and diversity order of the system is investigated. The analytical results are confirmed by simulations.
Keywords :
OFDM modulation; diversity reception; error statistics; radio transceivers; asymptotic behavior; beamforming OFDM systems; closed-form expressions; diversity order; outage probability; receive I-Q imbalances; transceiver I-Q imbalance; transmit I-Q imbalances; transmit diversity; Array signal processing; Interference; OFDM; Receiving antennas; Signal to noise ratio; Transceivers; I/Q imbalance; OFDM; asymptotic analysis; beamforming; performance analysis;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2012.12.110012
