Title :
Performance Evaluation of DS-CDMA Based OFDM Multiuser System for Ultra Wideband (UWB) Communication
Author :
Soni, H.B. ; Desai, U.B. ; Merchant, S.N.
Author_Institution :
Indian Inst. of Technol. Mumbai, Mumbai
Abstract :
Here we have considered multiuser communication scenario with ultra wideband (UWB) communication. We propose two schemes for downlink communication, which are DS-CDMA based OFDM systems. For both the schemes, performance is compared with TH-PPM UWB. Performance of both the schemes is evaluated with additive white Gaussian noise (AWGN) channel. We have considered effect of higher spreading factor for AWGN channel. Also, we investigate performance of both the schemes under fading channel with different numbers of multipath components.
Keywords :
AWGN channels; OFDM modulation; code division multiple access; fading channels; multiuser channels; ultra wideband communication; AWGN channel; DS-CDMA system; OFDM system; additive white Gaussian noise; downlink communication; fading channel; multipath components; multiuser communication; ultrawideband communication; AWGN channels; Adaptive equalizers; Bandwidth; Downlink; Fading; Intersymbol interference; Multiaccess communication; OFDM; Ultra wideband communication; Ultra wideband technology;
Conference_Titel :
Digital Telecommunications, 2007. ICDT '07. Second International Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
0-7695-2910-0
Electronic_ISBN :
0-7695-2910-0
DOI :
10.1109/ICDT.2007.28
