A GA-based UWB pulse waveform design method
Digital Signal Processing
Orthogonal pulse design for UWB systems with timing jitter
ICACT'09 Proceedings of the 11th international conference on Advanced Communication Technology - Volume 1
Optimal design of UWB pulse based on IDFT
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Spectrally efficient waveform set design for UWB wireless communications
ICICS'09 Proceedings of the 7th international conference on Information, communications and signal processing
UWB pulse shaping by FIR filter to enhance power efficiency
ISWPC'10 Proceedings of the 5th IEEE international conference on Wireless pervasive computing
Interference mitigation between ultra-wideband sensor network and other legal systems
EURASIP Journal on Wireless Communications and Networking - Special issue on radar and sonar sensor networks
EURASIP Journal on Wireless Communications and Networking - Special issue on radar and sonar sensor networks
Impulse Radio UWB Pulse Shaping for Cognitive Radio Applications
Wireless Personal Communications: An International Journal
Optimal UWB Waveform Design Based on Radial Basis Function Neural Networks
Wireless Personal Communications: An International Journal
Wireless Personal Communications: An International Journal
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With transmit power spectra strictly limited by regulatory spectral masks, the emerging ultra-wideband (UWB) communication systems call for judicious pulse shape design in order to achieve optimal spectrum utilization, spectral mask compatibility, and coexistence with other wireless services. Meanwhile, orthogonal pulse sets are often desired in order to apply high-rate multidimensional modulation and (carrier-free) orthogonal frequency-division multiple access. Motivated by these considerations, we suggest a digital finite impulse response (FIR) filter approach to synthesizing UWB pulses and propose filter design techniques by which optimal waveforms that satisfy the spectral mask can be efficiently obtained. For single pulse design, we develop a convex formulation for the design of the FIR filter coefficients that maximize the spectrum utilization efficiency in terms of both the bandwidth and power allowed by the spectral mask. For orthogonal pulse design, a sequential strategy is derived to formulate the overall pulse design problem as a set of convex subproblems, which are then solved in a sequential manner to yield a set of mutually orthogonal pulses. Our design techniques not only provide waveforms with high spectrum utilization and guaranteed spectral mask compliance but also permit simple modifications that can accommodate several other system objectives.