Non-Linear UWB Receivers With MLSE Post-Detection
Florian Trösch, Thomas Zasowski, and Armin Wittneben
IEEE Vehicular Technology Conference, VTC Spring 2008, Singapore, Singapore, May 2008.
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A wireless body area network with an average
throughput of 500 kbps is considered based on ultra-wideband
(UWB) pulse position modulation. For a long battery autonomy
ultra low power consumption is essential. In  a FCC compliant
ultra low power UWB communication system was presented.
By means of a 1% duty cycle at 50 Mbps peak data rate, the
power consumption of the system is estimated below 1 mW.
To increase inter-symbol interference (ISI) robustness as well as
for synchronization a simple post-detection maximum-likelihood
sequence estimator (MLSE) has been presented , . In this
work, we extend this MLSE approach to over-sampled energy
detectors and non-ideal integration windows. Furthermore, we
present optimal MLSE metrics based on partial channel state
information as a performance benchmark.
ultra-wideband, impulse radio, inter-symbol interference,non-linear receiver, viterbi decoder, MLSE post-detection
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