실내 무선측위/통신을 위한 IEEE 802.15.4a IR-UWB 시스템 설계
IEEE 802.15.4a IR-UWB System Design for Indoor Ranging and Communications
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초록
This paper aims at designing an impulse-radio ultra-wideband (IR-UWB) transceiver, especially targeting the IEEE 802.15.4a indoor ranging and communication systems. We first investigate the IEEE 802.15.4a IR-UWB signals and suggest the full-digital transceiver architecture accordingly. Since the wireless systems equipped with the impulse signal have the property of low-duty cycle, i.e., discontinuity in time, while the conventional systems takes the continuous signals, it is required to reconfigure the system design, including link budget. Following brief introduction to our IEEE 802.15.4a IR-UWB system hardware, we finally examine the ranging performance in indoor environments to verify our system design.
Abstract
This paper aims at designing an impulse-radio ultra-wideband (IR-UWB) transceiver, especially targeting the IEEE 802.15.4a indoor ranging and communication systems. We first investigate the IEEE 802.15.4a IR-UWB signals and suggest the full-digital transceiver architecture accordingly. Since the wireless systems equipped with the impulse signal have the property of low-duty cycle, i.e., discontinuity in time, while the conventional systems takes the continuous signals, it is required to reconfigure the system design, including link budget. Following brief introduction to our IEEE 802.15.4a IR-UWB system hardware, we finally examine the ranging performance in indoor environments to verify our system design.
참고문헌 (7)
- "Part 15.4: Wireless Medium Access Control (MAC) and Physical layer (PHY) Specifications for Low-Rate Wireless Personal Area Networks (LRWPAN)", IEEE 802.15.4a (2007)
- 오미경, "유비쿼터스홈 구축을 위한 저속 위치인식 UWB 기술", 전자통신동향분석, 21(5), pp.30~39 (2006)
- M. Oh, "Ranging implementation for IEEE 802.15.4a IR-UWB systems", IEEE VTC2008, pp.1077~1081 (2008)
- L. Stoica, "An ultrawideband system architecture for tag based wireless sensor networks", IEEE Trans. on VT, 54(5), pp.1632~1645 (2005)
- Z. Sahinoglu, "Ranging in the IEEE 802.15.4a standard", IEEE WAMICON 2006, pp.1~5 (2006)
- N. He, "Performance analysis of non-coherent UWB receivers at different synchronization levels", IEEE Trans. on Wireless Comm., 5(6), pp.1266~1273 (2006)
- J. Ryckaert, "A 0.65-to-1.4nJ", burst 3-to-10GHz UWB digital Tx in 90nm CMOS for IEEE 802.15.4a, 2007, 120~121