NDLI: Gated threshold compensated noncoherent PPM receiver for UWB impulse radio

Content Provider	IEEE Xplore Digital Library
Author	Krébesz, T. Kolumbán, G. Tse, C.K. Lau, F.C.M.
Copyright Year	2010
Description	Author affiliation: Faculty of Information Technology, Pazmany Peter Catholic University, Budapest, Hungary (Kolumbán, G.) \|\| Dept. of Measurement and Inf. Eng., Budapest Univ. of Technology and Economics, Budapest, Hungary (Krébesz, T.) \|\| Dept. of Electronic and Information Eng., The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR (Tse, C.K.; Lau, F.C.M.)
Abstract	Since the coherent receivers are not feasible to implement low-cost ultra-wideband (UWB) impulse radio (IR) devices featuring extremely low power consumption, energy detector-based (ED-based) noncoherent receivers are more and more frequently chosen. The Pulse Polarity Modulation (PPM) scheme with a threshold compensated receiver is a promising candidate for the implementation of cheap and robust UWB IR devices. Unfortunately, the field tests and computer simulations have shown the well known fact that the noise performance of noncoherent demodulators is much behind that of their coherent counterparts. The poor noise performance results in a such a bad receiver sensitivity that prevents the use of noncoherent receivers in the majority of real applications. This contribution shows how the noise performance of noncoherent threshold compensated PPM receiver can be improved considerably by disabling the receiver outside of the UWB pulse where only channel noise and interference is observed. The novel receiver configuration, referred to as gated threshold compensated noncoherent PPM receiver offers an 8-dB improvement in receiver sensitivity.
Starting Page	1097
Ending Page	1100
File Size	204018
Page Count	4
File Format	PDF
ISBN	9781424453085
DOI	10.1109/ISCAS.2010.5537335
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-05-30
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Receivers Pulse modulation Ultra wideband technology Energy consumption Infrared detectors Noise robustness Testing Computer simulation Demodulation Application software
Content Type	Text
Resource Type	Article

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