DocumentCode :
2261665
Title :
Enhanced frequency domain spreading for WiMedia UWB
Author :
Chrabieh, Rabih ; Soliman, Samir
Author_Institution :
QUALCOMM, San Diego
fYear :
2007
fDate :
17-19 Oct. 2007
Firstpage :
1247
Lastpage :
1251
Abstract :
WiMedia UWB is a high data rate OFDM system for wireless personal area networks. The design philosophy is a mixture of high throughput and low power consumption. The standard uses special time and frequency domain spreading to enable low power consumption for the low data rates and for low-end devices. A loss of channel diversity is observed in certain scenarios. First we describe an efficient frequency domain spreading implementation in time domain. Then using this key idea, we propose new spreading schemes, either to recover the diversity loss or to achieve additional power and hardware savings for low-end devices.
Keywords :
OFDM modulation; personal area networks; ultra wideband communication; OFDM system; WiMedia UWB; enhanced frequency domain spreading; wireless personal area networks; Bandwidth; Clocks; Costs; Energy consumption; Frequency domain analysis; Hardware; OFDM; Power transmission; Quadrature phase shift keying; Radio transmitters; Diversity; frequency domain spreading (FDS); orthogonal frequency division multiaccess (OFDM); power saving; time domain spreading (TDS); ultra wideband (UWB);
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Communications and Information Technologies, 2007. ISCIT '07. International Symposium on
Conference_Location :
Sydney,. NSW
Print_ISBN :
978-1-4244-0976-1
Electronic_ISBN :
978-1-4244-0977-8
Type :
conf
DOI :
10.1109/ISCIT.2007.4392208
Filename :
4392208
Link To Document :
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