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 non-coherent 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.
Original language | English |
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Title of host publication | ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems |
Subtitle of host publication | Nano-Bio Circuit Fabrics and Systems |
Pages | 1097-1100 |
Number of pages | 4 |
DOIs | |
Publication status | Published - 31 Aug 2010 |
Event | 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems, ISCAS 2010 - Paris, France Duration: 30 May 2010 → 2 Jun 2010 |
Conference
Conference | 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems, ISCAS 2010 |
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Country/Territory | France |
City | Paris |
Period | 30/05/10 → 2/06/10 |
ASJC Scopus subject areas
- Hardware and Architecture
- Electrical and Electronic Engineering