DocumentCode :
1057810
Title :
Measuring 
Impairments in WiMAX Transmitters
Author :
Angrisani, Leopoldo ; Napolitano, Aniello ; Vadursi, Michele
Author_Institution :
Dipt. di Inf. e Sist., Univ. degli Studi di Napoli Federico II, Naples
Volume :
58
Issue :
5
fYear :
2009
fDate :
5/1/2009 12:00:00 AM
Firstpage :
1299
Lastpage :
1306
Abstract :
This paper presents a new method for measuring the I /Q impairments affecting the worldwide interoperability for microwave access (WiMax) transmitters through the analysis of the signal acquired through a general-purpose I /Q receiver. Based on a model of the effects of the I /Q impairments on the output signal that is suitable for orthogonal frequency-division multiplexing (OFDM) systems like WiMax, the method is designed to correctly take into account the peculiarities of systems compliant with the IEEE 802.16-2004 standard, such as the potentially noxious effects of the impairments on signal normalization and threshold decisions. The results of the experiments carried out on the standard-compliant signals are given.
Keywords :
OFDM modulation; WiMax; radio transmitters; I-Q impairments; IEEE 802.16-2004 standard; OFDM systems; WiMax transmitters; orthogonal frequency-division multiplexing systems; standard-compliant signals; worldwide interoperability for microwave access; $I/Q$
fLanguage :
English
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9456
Type :
jour
DOI :
10.1109/TIM.2008.2009141
Filename :
4738377
Link To Document :
