Title :
Baseband Compensation of Transmitter and Receiver IQ Imbalance for OFDM in Frequency Selective Fading Channels
Author :
Oostveen, Job C. ; Schoonen, Admar ; Willems, Frans
Author_Institution :
Philips Res. Lab. Eindhoven
Abstract :
In this paper, we present a baseband algorithm for estimation and compensation of transmitter and receiver IQ imbalance for OFDM in a frequency-selective fading channel. We show by simulations that the negative effect of IQ imbalance on system performance can be almost completely removed by the proposed algorithm. The algorithm is an iterative loop, consisting of consecutively channel estimation, Rx IQ imbalance estimation, Tx IQ imbalance estimation and data estimation
Keywords :
channel estimation; fading channels; OFDM; baseband compensation; channel estimation; frequency selective fading channels; receiver IQ imbalance; transmitter IQ imbalance; Baseband; Channel estimation; Frequency estimation; Frequency-selective fading channels; Iterative algorithms; Laboratories; OFDM modulation; System performance; Transmitters; Wireless LAN;
Conference_Titel :
Signal Processing Advances in Wireless Communications, 2006. SPAWC '06. IEEE 7th Workshop on
Conference_Location :
Cannes
Print_ISBN :
0-7803-9710-X
Electronic_ISBN :
0-7803-9711-8
DOI :
10.1109/SPAWC.2006.346367
