TY - GEN
T1 - Significance of step size in the acquisition performance of coherent IR-UWB receivers
AU - Chandrasekaran, Rangasayee Lalgudi
AU - Ning, He
AU - Tepedelenlioglu, Cihan
PY - 2007
Y1 - 2007
N2 - The sparsely pulsed ultra-wideband (UWB) waveform has to be detected using efficient search strategies. Consecutive serial search (CSS) and permuted search strategies have been used for pulse detection. CSS results in a large average acquisition time when low duty cycle pulses are used. Permuted search strategies circumvent this problem by exploiting the dense multipath characteristic of the UWB signal. A host of parameters influence the acquisition performance in the case of CSS and permuted search strategies. This paper discusses the significance of step size in the acquisition, performance of coherent impulse radio ultra-wideband (IR-UWB) receivers. Using theoretical analysis and simulations, it is established that for channel models with different multipath spreads, the step size minimally affects the acquisition performance of a single pulse correlator in the case of permuted search strategies. For CSS, the acquisition performance changes with, step size.
AB - The sparsely pulsed ultra-wideband (UWB) waveform has to be detected using efficient search strategies. Consecutive serial search (CSS) and permuted search strategies have been used for pulse detection. CSS results in a large average acquisition time when low duty cycle pulses are used. Permuted search strategies circumvent this problem by exploiting the dense multipath characteristic of the UWB signal. A host of parameters influence the acquisition performance in the case of CSS and permuted search strategies. This paper discusses the significance of step size in the acquisition, performance of coherent impulse radio ultra-wideband (IR-UWB) receivers. Using theoretical analysis and simulations, it is established that for channel models with different multipath spreads, the step size minimally affects the acquisition performance of a single pulse correlator in the case of permuted search strategies. For CSS, the acquisition performance changes with, step size.
KW - Synchronization
KW - Ultra-wideband communications (UWB)
UR - http://www.scopus.com/inward/record.url?scp=34547527590&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34547527590&partnerID=8YFLogxK
U2 - 10.1109/ICASSP.2007.366522
DO - 10.1109/ICASSP.2007.366522
M3 - Conference contribution
AN - SCOPUS:34547527590
SN - 1424407281
SN - 9781424407286
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - III261-III264
BT - 2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07
T2 - 2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07
Y2 - 15 April 2007 through 20 April 2007
ER -