DocumentCode :
2802960
Title :
Quantization issues for the design of a 3rd-generation CDMA wireless handset transmitter
Author :
Mandyam, Giridhar D.
Author_Institution :
Nokia Res. Center, Irving, TX, USA
fYear :
1999
fDate :
1999
Firstpage :
3.1
Lastpage :
3.7
Abstract :
A full analysis is presented on quantization analysis for the reverse link transmitter chain in the third-generation IS-95, i.e., cdma2000 system. Of particular interest is how reverse link channels are scaled prior to subsequent quantization as a result of digital-to-analog conversion. Through analysis, two methods of quantization are proposed - fixed and adaptive. In addition, the impact of D/A converter nonlinearity on resultant signal-to-noise ratio is analyzed. Simulations are provided which show that adaptive quantization has a slight performance benefit over fixed methods in terms of ACPR
Keywords :
digital-analogue conversion; mobile radio; quantisation (signal); radio transmitters; D/A converter nonlinearity; adaptive quantization; cdma2000; channel scaling; digital-to-analog conversion; fixed quantization; reverse link transmitter chain; signal-to-noise ratio; third-generation IS-95; wireless handset transmitter; Baseband; Digital-analog conversion; Equations; Filters; Multiaccess communication; Pulse shaping methods; Quantization; Signal analysis; Telephone sets; Transmitters;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Wireless Communications and Systems, 2000. 1999 Emerging Technologies Symposium
Conference_Location :
Richardson, TX
Print_ISBN :
0-7803-5554-7
Type :
conf
DOI :
10.1109/ETWCS.1999.897311
Filename :
897311
Link To Document :
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