2009 IEEE International Conference on RFID最新文献

Mobile-phone-readable 2.45GHz passive digital sensor tag 手机可读2.45GHz无源数字传感器标签

2009 IEEE International Conference on RFID Pub Date : 2009-04-27 DOI: 10.1109/RFID.2009.4911172

Y. Tetu, I. Jantunen, B. Gomez, S. Robinet

引用次数: 6

A Novel localization scheme for passive RFID tags; Communication Range Recognition (CRR) 一种新的无源RFID标签定位方案通信距离识别(CRR)

2009 IEEE International Conference on RFID Pub Date : 2009-04-27 DOI: 10.1109/RFID.2009.4911209

T. Wada, N. Uchitomi, Y. Ota, T. Hori, K. Mutsuura, H. Okada

引用次数: 15

Cryptography is feasible on 4-Bit microcontrollers - A proof of concept 加密在4位微控制器上是可行的-概念证明

2009 IEEE International Conference on RFID Pub Date : 2009-04-27 DOI: 10.1109/RFID.2009.4911182

Markus Vogt, A. Poschmann, C. Paar

引用次数: 16

Circularly polarized patch antenna with high Tx / Rx-separation 高Tx / rx分离的圆极化贴片天线

2009 IEEE International Conference on RFID Pub Date : 2009-04-27 DOI: 10.1109/RFID.2009.4911200

L. Mayer, A. Scholtz

引用次数: 11

A low-power dual-clock strategy for digital circuits of EPC Gen2 RFID tag EPC Gen2 RFID标签数字电路的低功耗双时钟策略

2009 IEEE International Conference on RFID Pub Date : 2009-04-27 DOI: 10.1109/RFID.2009.4911177

Q. Luo, Li Guo, Qing Li, Gang Zhang, Junyu Wang

引用次数: 14

Effect of Gen2 protocol parameters on RFID tag performance Gen2协议参数对RFID标签性能的影响

2009 IEEE International Conference on RFID Pub Date : 2009-04-27 DOI: 10.1109/RFID.2009.4911178

P. Nikitin, K. Rao

引用次数: 46

Multipath fading measurements for multi-antenna backscatter RFID at 5.8 GHz 5.8 GHz多天线后向散射RFID的多径衰落测量

2009 IEEE International Conference on RFID Pub Date : 2009-04-27 DOI: 10.1109/RFID.2009.4911197

J. Griffin, G. Durgin

{"title":"Multipath fading measurements for multi-antenna backscatter RFID at 5.8 GHz","authors":"J. Griffin, G. Durgin","doi":"10.1109/RFID.2009.4911197","DOIUrl":"https://doi.org/10.1109/RFID.2009.4911197","url":null,"abstract":"UHF and microwave backscatter RF-tag systems, including radio frequency identification (RFID) and sensor systems, experience multipath fading that can be more severe than that found in a conventional transmitter-to-receiver channel. Previous work has shown that multipath fading can be reduced on the modulated-backscatter signal received from the RF tag in a non-line-of-sight (NLOS) channel if more than one RF-tag antenna is used to modulate backscatter. This paper presents the first multipath fading measurements for backscatter tags using multiple antennas at 5.79 GHz - the center of the 5.725–5.850 GHz, unlicensed industrial, scientific, and medical (ISM) frequency band that may offer reliable operation for future, miniature RF tags. NLOS measurement results are presented as cumulative density functions (CDF) and fade margins for use in backscatter radio link budget analysis and a detailed description of the custom backscatter testbed used to take the measurements is provided. The measurements show that gains are available for multiple-antenna RF tags and results match well with gains predicted using the analytic fading distributions derived previously.","PeriodicalId":417077,"journal":{"name":"2009 IEEE International Conference on RFID","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131263773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 49

Flexible evaluation of RFID system parameters using rapid prototyping 利用快速原型技术灵活评估RFID系统参数

2009 IEEE International Conference on RFID Pub Date : 2009-04-27 DOI: 10.1109/RFID.2009.4911188

C. Angerer, R. Langwieser

{"title":"Flexible evaluation of RFID system parameters using rapid prototyping","authors":"C. Angerer, R. Langwieser","doi":"10.1109/RFID.2009.4911188","DOIUrl":"https://doi.org/10.1109/RFID.2009.4911188","url":null,"abstract":"Today's RFID systems are dependent on a wide range of different parameters, that influence the overall performance. Such system parameters can for example be the selected data rate, encoding scheme, modulation setting, transmit power or different hardware configurations, like one or two antenna scenarios. Furthermore, it is often desired to optimise several performance goals, like read-out range, read-out quality, throughput, etc., which are often contradicting each other. In order to achieve a desired performance of an RFID system, it is essential to understand the influences of the individual parameters of interest and their interconnection. Due to the multitude, wide range and interdependencies of influencing factors, this however is a complex task. Simulations offer insights in these relations but rely on the correct modeling of the dependencies of- and between the parameters. With our established prototyping system for RFID, we are able to flexibly and accurately explore the influence and interconnection of such parameters in a wide range on a basis of real-time measurements. Results on the evaluation of read-out quality depending on the transmit power and the data rate are presented.","PeriodicalId":417077,"journal":{"name":"2009 IEEE International Conference on RFID","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117333708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 24

Performance analysis of stacked RFID tags 堆叠式RFID标签的性能分析

2009 IEEE International Conference on RFID Pub Date : 2009-04-27 DOI: 10.1109/RFID.2009.4911194

Feng Lu, Xiaosheng Chen, Terry Tao Ye

{"title":"Performance analysis of stacked RFID tags","authors":"Feng Lu, Xiaosheng Chen, Terry Tao Ye","doi":"10.1109/RFID.2009.4911194","DOIUrl":"https://doi.org/10.1109/RFID.2009.4911194","url":null,"abstract":"Most RFID tag performance analysis is based on the assumption that the tag is stand-alone when interacting with the readers. However, in the real world, RFID tags are often stacked together when deployed, i.e., RFID-labeled carton boxes stacked on the pallet. When multiple RFID tag antennas are placed close to each other, each antenna behaves like a shielding and reflecting object to others and the radiation pattern and other EM properties will be detuned. The stacking impact often leads to performance degradation and in many cases, read and write failure. In this paper, we first derive an RCS model to generalize a loaded antenna as a shielding and reflecting object. We then introduce a normalized mutual impedance matrix of multiple antennas to formulate the coupling effects among stacked antennas. To quantify and visualize the stacking impact in a real world scenario, we also construct a 3-D EM model in Agilent® AMDS consisting of 27 (3 × 3 × 3) stacked carton boxes, each with Alien® tags attached on the surface. Our theoretical calculation agrees with the simulation and shows that both tag radiation pattern and other EM properties will be greatly altered by neighboring tags. Compared with tags in stand-alone scenarios, the degradation at different positions could be very significant (more than 6dB in some directions).","PeriodicalId":417077,"journal":{"name":"2009 IEEE International Conference on RFID","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116409840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 44

How to improve security and reduce hardware demands of the WIPR RFID protocol 如何提高WIPR RFID协议的安全性，降低对硬件的要求

2009 IEEE International Conference on RFID Pub Date : 2009-04-27 DOI: 10.1109/RFID.2009.4911191

Jiang Wu, Douglas R Stinson

引用次数: 29