TY - GEN
T1 - Noncoherent demodulator for PPM-UWB radios
AU - Yang, Liuqing
AU - Swami, Ananthram
PY - 2006
Y1 - 2006
N2 - Low-duty-cycle Ultra-wideband (UWB) radios have the potential to provide low-probability of detection (LPD) communications with low-power and low-complexity implementation. Pulse position modulation (PPM) is a prevalent scheme for UWB radios since it can further lower the transmitter complexity by avoiding pulse negation. However, the position shifts of impulse-like UWB waveforms, together with the severe frequency-selectivity of the propagation channels, aggravate the difficulty and complexity of timing synchronization and channel estimation. To circumvent both of these challenging tasks, we develop a differential encoder and its corresponding noncoherent demodulator for PPM-UWB signals. Relying on integrate-and-dump operations of "dirty" templates, our designs are operational when the timing offset and channel information both remain unknown.
AB - Low-duty-cycle Ultra-wideband (UWB) radios have the potential to provide low-probability of detection (LPD) communications with low-power and low-complexity implementation. Pulse position modulation (PPM) is a prevalent scheme for UWB radios since it can further lower the transmitter complexity by avoiding pulse negation. However, the position shifts of impulse-like UWB waveforms, together with the severe frequency-selectivity of the propagation channels, aggravate the difficulty and complexity of timing synchronization and channel estimation. To circumvent both of these challenging tasks, we develop a differential encoder and its corresponding noncoherent demodulator for PPM-UWB signals. Relying on integrate-and-dump operations of "dirty" templates, our designs are operational when the timing offset and channel information both remain unknown.
UR - http://www.scopus.com/inward/record.url?scp=33947646262&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33947646262&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:33947646262
SN - 142440469X
SN - 9781424404698
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - IV501-IV504
BT - 2006 IEEE International Conference on Acoustics, Speech, and Signal Processing - Proceedings
T2 - 2006 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2006
Y2 - 14 May 2006 through 19 May 2006
ER -