DocumentCode :
3354268
Title :
Performance of Direct Sequence Ultra Wide Band Signals over Log-normal Fading Channels
Author :
Öztürk, Ertan ; Yilmaz, Ender
Author_Institution :
Elektrik-Elektronik Muhendisligi Bolumu, Zonguldak Karaelmas Univ., Zonguldak, Turkey
fYear :
2007
fDate :
11-13 June 2007
Firstpage :
1
Lastpage :
4
Abstract :
In this paper, the probabilities of error performances of bipolar Direct Sequence Ultra Wide Band (DS-UWB) signals are investigated over a log-normal fading channel. Since the bandwidth of UWB signals is in the level of giga Hertz, the number of the resolvable paths in the channel is large. Consequently, in the receiver, a Rake receiver in conjunction with a maximum ratio combiner is used. By using the derived probability of error expression, the numerical values of the performances are calculated for the first derivative of Gaussian, the second derivative of Gaussian, Rayleigh and Daubechies-5 (db-5) pulse signals. Results show that the db-5 pulse based UWB system gives the best performance.
Keywords :
fading channels; radio receivers; ultra wideband communication; Gaussian pulse signals; Rayleigh pulse signals; UWB signals; direct sequence ultra wide band signals; error performances probabilities; log-normal fading channels; maximum ratio combiner; rake receiver; Bandwidth; Fading; Gaussian processes; Multipath channels; Probability; RAKE receivers; Radio frequency; Signal resolution; Sprites (computer); Ultra wideband technology;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Signal Processing and Communications Applications, 2007. SIU 2007. IEEE 15th
Conference_Location :
Eskisehir
Print_ISBN :
1-4244-0719-2
Electronic_ISBN :
1-4244-0720-6
Type :
conf
DOI :
10.1109/SIU.2007.4298612
Filename :
4298612
Link To Document :
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