-
Based on the principles of radio-frequency identification (RFID) technology and Friis propagation equation, the path loss expression of ultra high frequency (UHF) RFID in free space is provided. The Fresnel clearance and horizontal interval between reader antenna and tag are employed as dependent variables, and then the obstructing effect of the first Fresnel zone on path loss is discussed. By the methods of linear regression and minimum mean-square error, a dual-slope Logarithm distance path losses model is proposed. The path losses of UHF RFID under different parameters are measured in open indoor environment. The measurement results indicate that RFID system experiences less fading when the Fresnel clearance is 1.5 times higher than the first Fresnel radius. The standard deviation of the proposed model with two slopes reduces ten percent or more compared with that of traditional logarithm distance path loss model.
-
Keywords:
- radio frequency identification /
- path loss /
- Fresnel zone /
- linear regression
[1] Ruiz A R J, Granja F S, Honorato J C P, Rosas J G 2012 Proc. IEEE Trans. Instrum. Meas. 61 178
[2] Li B, He Y G, Hou Z G, She K, Zuo L 2011 Acta Phys. Sin. 60 4202 (in Chinese) [李兵, 何怡刚, 侯周国, 佘开, 佐磊 2011 60 4202]
[3] Hou Z G, He Y G, Li B, She K, Zhu Y Q 2010 Acta Phys. Sin. 59 5606 (in Chinese) [侯周国, 何怡刚, 李兵, 佘开, 朱彦卿 2010 59 5606]
[4] Nikitin P V, Rao K 2009 IEEE International Conference on RFID Orlando FL, USA, April 27-28, 2008 p117
[5] S kai, He Y G, Zuo L, Fang G F 2011 IEEE International Conference on Electric Utility Deregulation and Restructuring and Power Technologies Weihai, China, July 6-9, 2011 p1441
[6] Karthaus U, Fischer M 2003 IEEE J. Solid-State Circuits 38 1602
[7] Lazaro A, Girbau D, Salinas D 2009 Proc. IEEE Trans. Antennas Propag. 57 1241
[8] Wang H G, Pei C X, Pan Q 2009 IEEE International Conference on Wireless Communications, Networking and Mobile Computing Beijing, China, Sept. 24-26, 2009 p1
[9] Nikitin P V, Rao K V S 2009 IEEE Trans. Ind. Electron. 56 2374
[10] Lee W C Y 1998 Mobile Communication Engineering: Theory and Applications (2nd Ed.) (New York: McGraw-Hill) pp140-143
[11] Goldsmith A (Translated by Yang H W, Li W D, Guo W B) 2007 Wireless Communications (Beijing: Posts and Telecom Press) pp33-35 (in Chinese) [哥德史密斯著 (杨鸿文, 李卫东, 郭文彬译) 2007 无线通信(北京: 人民邮电出版社)第33–35页]
[12] Feuerstein M J, Blackard K L, Rappaport T S, Seidel S Y, Xia H H 1994 IEEE Trans. Vehicular Technol. 43 487
[13] Xia H H, Bertoni H L, Maciel L R, Stewart A L, Rowe R 1993 Proc. IEEE Trans. Antennas Propag. 41 1439
-
[1] Ruiz A R J, Granja F S, Honorato J C P, Rosas J G 2012 Proc. IEEE Trans. Instrum. Meas. 61 178
[2] Li B, He Y G, Hou Z G, She K, Zuo L 2011 Acta Phys. Sin. 60 4202 (in Chinese) [李兵, 何怡刚, 侯周国, 佘开, 佐磊 2011 60 4202]
[3] Hou Z G, He Y G, Li B, She K, Zhu Y Q 2010 Acta Phys. Sin. 59 5606 (in Chinese) [侯周国, 何怡刚, 李兵, 佘开, 朱彦卿 2010 59 5606]
[4] Nikitin P V, Rao K 2009 IEEE International Conference on RFID Orlando FL, USA, April 27-28, 2008 p117
[5] S kai, He Y G, Zuo L, Fang G F 2011 IEEE International Conference on Electric Utility Deregulation and Restructuring and Power Technologies Weihai, China, July 6-9, 2011 p1441
[6] Karthaus U, Fischer M 2003 IEEE J. Solid-State Circuits 38 1602
[7] Lazaro A, Girbau D, Salinas D 2009 Proc. IEEE Trans. Antennas Propag. 57 1241
[8] Wang H G, Pei C X, Pan Q 2009 IEEE International Conference on Wireless Communications, Networking and Mobile Computing Beijing, China, Sept. 24-26, 2009 p1
[9] Nikitin P V, Rao K V S 2009 IEEE Trans. Ind. Electron. 56 2374
[10] Lee W C Y 1998 Mobile Communication Engineering: Theory and Applications (2nd Ed.) (New York: McGraw-Hill) pp140-143
[11] Goldsmith A (Translated by Yang H W, Li W D, Guo W B) 2007 Wireless Communications (Beijing: Posts and Telecom Press) pp33-35 (in Chinese) [哥德史密斯著 (杨鸿文, 李卫东, 郭文彬译) 2007 无线通信(北京: 人民邮电出版社)第33–35页]
[12] Feuerstein M J, Blackard K L, Rappaport T S, Seidel S Y, Xia H H 1994 IEEE Trans. Vehicular Technol. 43 487
[13] Xia H H, Bertoni H L, Maciel L R, Stewart A L, Rowe R 1993 Proc. IEEE Trans. Antennas Propag. 41 1439
Catalog
Metrics
- Abstract views: 6339
- PDF Downloads: 491
- Cited By: 0
下载:
