An Ultrawideband T-Pulse Fitting the FCC Mask Using a Multiobjective Genetic Algorithm

This letter presents the design of an ultrawideband (UWB) T-pulse fitting the Federal Communication Commission (FCC) Spectral mask. A T-pulse is a time limited pulse with the stipulation that 99.9% of its energy is focused in a specified band. The spectral content of this UWB pulse ranges from 3.1-1...

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Bibliographic Details
Published inIEEE microwave and wireless components letters Vol. 22; no. 12; pp. 615 - 617
Main Authors Yeung, Sai Ho, Mei, Zicong, Sarkar, Tapan Kumar, Salazar-Palma, Magdalena
Format Journal Article
LanguageEnglish
Published New York, NY IEEE 01.12.2012
Institute of Electrical and Electronics Engineers
Subjects
Applied sciences
Design methodology
Electronics
Exact sciences and technology
FCC
Microwave and submillimeter wave devices, electron transfer devices
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
T-pulse
Ultra wideband technology
ultrawideband (UWB) signals
Performance evaluation
Wireless LAN
Microwave device
Circuit design
ultrawideband (UWB) signals
Evolutionary algorithm
Wireless telecommunication
Multiobjective programming
Optimization
Ultra wide band
Pulse generation
Wide band signal
Genetic algorithm
Intersymbol interference
Simplex method
T-pulse
Orthogonal signal
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Summary:This letter presents the design of an ultrawideband (UWB) T-pulse fitting the Federal Communication Commission (FCC) Spectral mask. A T-pulse is a time limited pulse with the stipulation that 99.9% of its energy is focused in a specified band. The spectral content of this UWB pulse ranges from 3.1-10.6 GHz fitting the FCC spectral mask. This Nyquist signal is orthogonal to its shifted version thereby minimizing the intersymbol interference. This pulse is designed using a multiobjective genetic algorithm, which involves combining several strategies to deal with the large space in which the solution is sought. The optimized signal presented in this letter can carry 53% more energy than that designed by other simplex based optimization techniques. An orthogonal Nyquist signal suitable for UWB systems without WLAN band frequency components is also designed. All of the designed signals are compared with each other to show the effectiveness of this design.
ISSN:1531-1309
1558-1764
DOI:10.1109/LMWC.2012.2226021