| A Non-Coherent 802.15.4a UWB Impulse Radio |
| Citation: |
Duan, C.; Orlik, P.; Sahinoglu, Z.; Molisch, A.F., "A Non-Coherent 802.15.4a UWB Impulse Radio", IEEE International Conference on Ultra-Wideband (ICUWB), ISBN: 978-1-4244-0521-3, pp. 146-151, September 2007 (IEEE Xplore) |
| Date: | September 2007 |
| MERL Contacts: | Chunjie Duan,
Andreas F. Molisch,
Philip Orlik,
Zafer Sahinoglu |
The new IEEE 802.15.4a standard for Wireless Personal Area Networks (WPAN) extends the capabilities of its popular predecessor IEEE 802.15.4, and enables accurate range/distance estimation between communicating devices. In addition to its ranging capabilities, the new standard also defines several new data rates ranging from 100 kb/s to 27Mb/s and a variety of options that give IEEE 802.15.4a compliant devices a high degree of flexibility and scalability. In this article we describe our implementation of an UWB impulse radio device, which is compliant with the 802.15.4a standard. Our implementation uses non-coherent energy-detection based receivers both to demodulate data and to detect ranges. We will present our prototype system and discuss some implementation details (energy detection, sampling rates, acquisition/synchronization) specific to non-coherent receivers. The performance of our prototype system is discussed as well. The reported range estimation error is less than 30cm, which agrees well with theoretical predictions. |
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