信道相关情况下UHF RFID识别性能分析

doi:10.11959/j.issn.1000-436x.2018123

通信学报 ›› 2018, Vol. 39 ›› Issue (7): 59-67.doi: 10.11959/j.issn.1000-436x.2018123

信道相关情况下UHF RFID识别性能分析

佘开¹(),何怡刚²,李兵²,朱彦卿³

¹ 湖南科技大学物理与电子科学学院，湖南湘潭 411201
² 武汉大学电气工程学院，湖北武汉 430072
³ 湖南大学电气与信息工程学院，湖南长沙 410082

修回日期:2018-06-20 出版日期:2018-07-01 发布日期:2018-08-08
作者简介:佘开（1980-），男，湖南长沙人，博士，湖南科技大学讲师，主要研究方向为射频识别的空口技术。|何怡刚（1966-），男，湖南邵阳人，博士，武汉大学教授、博士生导师，主要研究方向为测试与诊断、智能信息处理等。|李兵（1973-），男，湖南邵阳人，博士，武汉大学副教授，主要研究方向为射频识别测试技术、智能电网技术等。|朱彦卿（1978-），男，湖南株洲人，博士，湖南大学助理教授，主要研究方向为射频测试技术。
基金资助:
国家自然科学基金资助项目(51637004);国家自然科学基金资助项目(51777050);国家重点研发计划基金资助项目(2016YFF0102200);湖南省自然科学基金资助项目(2018JJ2127);湖南省教育厅科研基金资助项目(16C0641)

Research on the identification performance of UHF RFID system considering the correlation of cascaded channel

Kai SHE¹(),Yigang HE²,Bing LI²,Yanqing ZHU³

¹ School of Physics and Electronic Science,Hunan University of Science and Technology,Xiangtan 411201,China
² School of Electrical Enginering,Wuhan University,Wuhan 430072,China
³ College of Electrical and Information Engineering,Hunan University,Changsha 410082,China

Revised:2018-06-20 Online:2018-07-01 Published:2018-08-08
Supported by:
The National Natural Science Foundation of China(51637004);The National Natural Science Foundation of China(51777050);The National Key Research and Development Program of China(2016YFF0102200);The Natural Science Foundation of Hunan Province(2018JJ2127);The Research Foundation of Hunan Education Department(16C0641)

摘要/Abstract

摘要：

针对UHF RFID系统识别率受电波多径传播制约的问题，研究了前向与反向相关信道对系统识别性能的影响。将信道分为独立、相关和完全相关3种情形，基于广义莱斯衰落信道模型，推导了识别率的解析计算式。与现有分析相比，此分析给出了任意相关系数和多种信道条件下识别率统一的计算式。仿真实验表明，不同相关系数、信道条件、灵敏度和距离对识别率有影响。

关键词: 射频识别技术, 识别率, 相关信道, 广义莱斯衰落模型

Abstract:

The identification rate of UHF RFID system was restricted by multipath propagation effects.The system identification performance was studied considering the correlation coefficient between forward and reverse channels.Based on the generalized Rician fading channel model,the analytical expression of identification rate was derived under independent,full correlation and correlation cases.Compared with the existing analysis,the proposed uniform calculation formula of identification rate was for any correlation coefficient and kinds of channel conditions.The numerical computation and Monte-carlo simulations show that the influences of different correlation coefficients,channel conditions,sensitivity and distance on the identification rate.

Key words: RFID technology, identification rate, relevant channel, generalized Rician fading model

中图分类号:

TN925.93

佘开,何怡刚,李兵,朱彦卿. 信道相关情况下UHF RFID识别性能分析[J]. 通信学报, 2018, 39(7): 59-67.

Kai SHE,Yigang HE,Bing LI,Yanqing ZHU. Research on the identification performance of UHF RFID system considering the correlation of cascaded channel[J]. Journal on Communications, 2018, 39(7): 59-67.

图/表 5

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参考文献 15

[1]	李程, 钱松荣 . 射频识别动态定位方法[J]. 通信学报, 2013,34(4): 144-148.
	LI C , QIAN S R . RFID dynamic positioning method[J]. Journal on Communications, 2013,34(4): 144-148.
[2]	KIM D , INGRAM M A , SMITH W W . Measurements of small-scale fading and path loss for long range RF tags[J]. IEEE Transactions on Antennas and Propagation, 2003,51(8): 1740-1749.
[3]	LAZARO A , GIRBAU D , SALINAS D . Radio link budgets for UHF RFID on multipath environments[J]. IEEE Transactions on Antennas and Propagation, 2009,57(4): 1241-1251.
[4]	佘开, 何怡刚, 李兵 . 无源超高频 RFID 系统链路预算分析[J]. 仪器仪表学报, 2010,31(5): 974-979.
	SHE K , HE Y G , LI B . Passive UHF RFID budget analysis[J]. Chinese Journal of Scientific Instrument, 2010,31(5): 974-979.
[5]	佐磊, 何怡刚, 李兵 . 无源超高频射频识别系统路径损耗研究[J]. 物理学报, 2013,62(14): 1-8.
	ZUO L , HE Y G , LI B . Analysis and measurement of path loss effects for ultra high frequency radio-frequency identification in real environments[J]. Acta Physica Sinica, 2013,62(14): 1-8.
[6]	KIM D Y , JO H S , YOON H . Reverse-link interrogation range of a UHF MIMO-RFID system in Nakagami-m fading channels[J]. IEEE Transactions on Industrial Electronics, 2010,57(4): 1468-1477.
[7]	BEKKALI A , ZOU S , KADRI A . Performance analysis of passive UHF RFID systems under cascaded fading channels and interference effects[J]. IEEE Transactions on Wireless Communications, 2015,14(3): 1421-1433.
[8]	CHAU Y A , . Outage performance of RFID systems with multiple reader antennas over correlated forward and backscatter fading channels[C]// IEEE 21st Annual Wireless and Optical Communications Conference (WOCC). 2012: 81-82.
[9]	SMIETANKA G , GOTZE J . Modeling and simulation of MISO diversity for UHF RFID communication[C]// Computer Science and Information Systems. 2012: 813-820.
[10]	HE C , WANG Z J . Impact of the correlation between forward and backscatter channels on RFID system performance[C]// IEEE International Conference on Acoustics,Speech and Signal Processing (ICASSP). 2011: 3540-3543.
[11]	SILVA C R N , LEONRDO E J , YACOUB M D . Product of two envelopes taken from α-μ,κ-μ,and η-μ distributions[J]. IEEE Transactions on Communications, 2018,66(3): 1284-1295.
[12]	GAO Y , CHEN Y , BEKKALI A . Performance of passive UHF RFID in cascaded correlated generalized Rician fading[J]. IEEE Communications Letters, 2016,20(4): 660-663.
[13]	BEAULIEU N C , HEMACHANDRA K T . Novel simple representations for gaussian class multivariate distributions with generalized correlation[J]. IEEE Transactions on Information Theory, 2011,57(12): 8072-8083.
[14]	ZWILLINGER D . Table of integrals,series,and products (Eighth Edition)[M]. Elsevier, 2014.
[15]	ERMOLOVA N Y , TIRKKONEN O . Laplace transform of product of generalized Marcum Q,Bessel I,and power functions with applications[J]. IEEE Transactions on Signal Processing, 2014,62(11): 2938-2944.

参数名称	数值
工作频率f/MHz	921.125
阅读器天线等效全向发射功率P_tx/dBm	33
标签芯片灵敏度S_T/dBm	-20,-10]
阅读器接收灵敏度S_R/dBm	-90,-40]
阅读器天线增益G_R/dBi	9
标签天线增益G_T/dBi	0
极化损耗系数ρ_L	0.5
编码调制归一化功率系数τ	0.5
匹配功率传输效率 μ_T	1
标签差分反射系数\|Λ\|²	0.1
大尺度路径损耗模型因子 n	2

λ₁=λ₂		广义Rician随机变量H_k间相关系数ρ
λ₁=λ₂	Rayleigh	Rician（S=1,m_1l=m_2l）	Nakagami-m（m=2）
0.1	4.4×10^-4	8.0×10^-4	7.5×10^-4
0.2	2.0×10^-4	2.6×10^-4	0.001
0.3	0.007	0.017	0.008
0.4	0.022	0.055	0.025
0.5	0.057	0.120	0.059
0.6	0.119	0.219	0.124
0.7	0.223	0.357	0.230
0.8	0.386	0.532	0.396
0.9	0.631	0.745	0.643
0.99	0.955	0.976	0.958

信道相关情况下UHF RFID识别性能分析

Research on the identification performance of UHF RFID system considering the correlation of cascaded channel

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