DocumentCode
2635527
Title
A multi-bit sigma-delta converter for UWB OFDM systems
Author
Zhao, Yingxin ; Ge, Lijun ; Wang, Shuang ; Jin, Yuang ; Fu, Minhao ; Wu, Hong
Author_Institution
Dept. of Commun. Eng., Nankai Univ., Tianjin, China
Volume
2
fYear
2010
fDate
17-20 Sept. 2010
Firstpage
1
Lastpage
4
Abstract
A multi-bit discrete time sigma-delta converter for an orthogonal frequency division multiplexing ultrawideband system has been designed. The overall sigma-delta converter consists of two modulators. The low and high subbands of signal are operated by using third-order low pass and fourth-order band pass modulator respectively. A simulation has been designed to realize the system with the converter according to the IEEE 802.15.3a standard. The results show that this architecture is well suited for orthogonal frequency division multiplexing ultrawideband system and the system has better noise shaping and BER performance.
Keywords
OFDM modulation; sigma-delta modulation; ultra wideband communication; BER performance; IEEE 802.15.3a standard; UWB OFDM systems; band pass modulator; multibit discrete time sigma-delta converter; multibit sigma-delta converter; noise shaping; orthogonal frequency division multiplexing ultrawideband system;
fLanguage
English
Publisher
ieee
Conference_Titel
Signals Systems and Electronics (ISSSE), 2010 International Symposium on
Conference_Location
Nanjing
Print_ISBN
978-1-4244-6352-7
Type
conf
DOI
10.1109/ISSSE.2010.5607014
Filename
5607014
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