Weitere Artikel dieser Ausgabe durch Wischen aufrufen
Low power UWB receiver architecture is proposed for a Wireless Body Area Network (WBAN). This receiving technology is a synergy of existing downconversion-based narrowband rejection mechanism in RF front end and signal processing in frequency domain. Frequency components of converted and filtered UWB pulses are separated into real and imaginary parts, independently correlated and effectively combined to achieve an improved output Signal to noise ratio (SNR). An extensive mathematical analysis has been performed to formulate the close-form expressions for SNRs in order to compare system performances toward favorable BER under BPSK modulation scheme. Analysis shows that optimal rotation of coordination plays an important role for the enhancement of receiving SNR which is further confirmed by computer simulation. A wide range of link level simulation (LLS) urges that the proposed system is more power efficient in higher-order modulation (HOM) schemes. Transmitted Reference (TR) scheme has been considered as the basis for wideband communication.
Ullah S, Islam SMR, Nessa A, Zhong Y, Kwak KS: Performance analysis of preamble based TDMA protocol for wireless body area network. Journal of Communication Software and Systems 2008., 4(3):
Barroso A, Benson J, Murphy T, et al.: The DSYS25 sensor platform. Proceedings of the 2nd International Conference on Embedded Networked Sensor Systems (SenSys '04), 2004 314. CrossRef
Lo B, Yang GZ: Key technical challenges and current implementations of body sensor networks. Proceedings of the 2nd IEEE International Workshop on Body Sensor Networks (BSN '05), April 2005 1-5.
Borger C, Smith S, Truffer C, et al.: Health spending projections through 2015: changes on the horizon. Health Affairs Web Exclusive 2006, 25(2):61-73. CrossRef
Ullah S, Higgins H, Kwak KS: A study of implanted and wearable BSN. In Agent and Multi-Agent Systems: Technologies and Applications, Lecture Notes in Computer Science. Volume 4953. Springer, Heidelberg, Germany; 2008:464-473. 10.1007/978-3-540-78582-8_47 CrossRef
Foerster J, Green E, Somayazulu S, Leeper D: Ultra-wideband technology for short- or medium-range wireless communications. Intel Technology Journal Q2 2001.
Win MZ, Scholtz RA: Impulse radio: how it works. IEEE Communications Letters 1998, 2(2):36-38. 10.1109/4234.660796 CrossRef
Proakis JG: Digital Communications. 3rd edition. McGraw-Hill, New York, NY, USA; 1995.
Cassioli D, Win MZ, Vatalaro F, Molisch AF: Performance of low-complexity Rake reception in a realistic UWB channel. Proceedings of the IEEE International Conference on Communications (ICC '02), May 2002, New York, NY, USA 2: 763-767. CrossRef
Hoctor RT, Tomlinson HW: Dday-hopped transmitted-reference RF communications. Proceedings of the IEEE Conference on Ultra Wideband System and Technologies, May 2002 265-270.
Lee S, Bagga S, Serdijn WA: A quadrature downconversion autocorrelation receiver architecture for UWB. Proceedings of the Conference on Ultra Wideband Systems and Technologies (UWBST '04), May 2004 6-10.
Woo S, Yang H, Yang S, Kim Y, Yook J, Kang B: A new TR-UWB receiver exploiting frequency components. IEICE Transactions on Communications 2008, E91-B(5):1608-1611. 10.1093/ietcom/e91-b.5.1608 CrossRef
Feng L, Namgoong W: An oversampled channelized UWB receiver with transmitted reference modulation. IEEE Transactions on Wireless Communications 2006, 5(6):1497-1505. CrossRef
Austrin A: Channel Model for WBAN. IEEE P802.15 Working Group for Wireless Personal Area Networks (WPAN), P802.15-08-0780-06-0006, March 2009
- A TR-UWB Downconversion Autocorrelation Receiver for Wireless Body Area Network
S.M Riazul Islam
Md. Humaun Kabir
- Springer International Publishing
- EURASIP Journal on Wireless Communications and Networking
Elektronische ISSN: 1687-1499
Neuer Inhalt/© ITandMEDIA, Product Lifecycle Management/© Eisenhans | vege | Fotolia