Advanced synchronisation and decoding in RFID reader receivers

Angerer, Christoph; Rupp, Markus

doi:10.1109/rws.2009.4957284

Cited by 23 publications

(16 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Besides the ZCD, demodulator structures basing on correlations instead of the ZCD for an RFID reader have been presented in [14,15]. In these works, the maximumlikelihood (ML) detector for frequency deviation estimation has been proposed.…”

Section: International Journal Of Distributed Sensor Networkmentioning

confidence: 99%

A Robust Baseband Demodulator for ISO 18000-6C RFID Reader Systems

Cheng

Cho

2012

International Journal of Distributed Sensor Networks

View full text Add to dashboard Cite

One key challenge for ultra-high frequency (UHF) radio-frequency identification (RFID) reader design is to demodulate the weak tag response signal which tends to be easily distorted and has considerable frequency deviations. In this paper, a baseband demodulator based on a matched filter (MF) is proposed to enhance the reliability of signal processing for the EPCglobal Class-1 Generation-2 (Gen2) RFID reader systems. The proposed demodulator is very robust against strong signal distortions and large frequency deviations happening on the received backscattered signal from a passive RFID tag. The validity and usefulness is demonstrated by both computer simulations and implementation experiments.

show abstract

Section: International Journal Of Distributed Sensor Networkmentioning

confidence: 99%

A Robust Baseband Demodulator for ISO 18000-6C RFID Reader Systems

Cheng

Cho

2012

International Journal of Distributed Sensor Networks

View full text Add to dashboard Cite

show abstract

“…The clocks of the tags are well synchronized via the signal received from the reader. Data synchronization is also an important problem for RFID systems [28], [29], but it is outside the scope of this paper.…”

Section: A System Modelmentioning

confidence: 99%

A time-efficient information collection protocol for large-scale RFID systems

Zhang

Pan

Fang

et al. 2012

2012 Proceedings IEEE INFOCOM

View full text Add to dashboard Cite

Abstract-Sensor-enabled RFID technology has generated a lot of interest from industries lately. Integrated with miniaturized sensors, RFID tags could provide not only the IDs but also valuable real-time information about the state of the corresponding objects or the surrounding environment, which is beneficial to many practical applications, such as warehouse management and inventory control. In this paper, we study the problem on how to design efficient protocols to collect such sensor information from numerous tags in a large-scale RFID system with a number of readers deployed. Different from information collection in the small RFID system covered by only one reader, in the multireader scenario, each reader has to first find out which tags located in its interrogation region in order to read information from them. We start with two categories of warm-up solutions that are directly extended from the existing information collection protocols for single-reader RFID systems, and show that all of them do not work well for the multi-reader information collection problem due to their inefficiency of identifying the interrogated tags. Then, we propose a novel solution, called the Bloom filter based Information Collection protocol (BIC). In BIC, the interrogated tag identification can be efficiently achieved with a distributively constructed Bloom filter, which significantly reduces the communication overhead and thus the protocol execution time. Extensive simulations show that BIC performs better than all the warm-up solutions and its execution time is within 3 times of the lower bound.

show abstract

“…This approach is followed for instance in the study by [35,37,57,58] for RFID tags or in [42,59] for RFID readers. Furthermore, the approach of an automatic generation of hardware modules out of highlevel descriptions, as it is common practice in chip design [60], is demonstrated on the example of encoding and decoding units in RFID [61,62]. Untangling standard compatibility issues and automating the design flow for a multi-standard active RFID tag are addressed in the study by [63].…”

Section: Rapid Prototyping Environments For Rfidmentioning

confidence: 99%

“…The concept of rapid prototyping aims to include only what is of specific interest instead of the entire functionality in the prototype. This could, for example, be certain signal processing algorithms that are newly introduced, like a synchronization and decoding concept [62]. A certain evaluation and measurement concept is developed, and thereafter, the required functionality for that specific measurement is designed.…”

Section: Rapid Prototyping Conceptmentioning

confidence: 99%

See 1 more Smart Citation

Evaluation and exploration of RFID systems by rapid prototyping

Angerer¹,

Langwieser²,

Rupp³

2011

Pers Ubiquit Comput

Self Cite

View full text Add to dashboard Cite

Today's RFID systems exhibit relatively little functionality, while future systems and ubiquitous computing applications require an ample set of general purpose features, like wide communication ranges, high data rates, high reliability, and many more. In order to meet these high-performance goals, several challenges in state of the art RFID systems need to be managed: (1) the compatibility of RFID equipment, working according to different standards in various frequency domains, (2) the thorough understanding of the performance impact of physical layer system parameters, (3) the venture of novel wireless technologies in the context of RFID, and finally, (4) to deal with the increased complexity of high-performance RFID systems. Therefore, designers desire a highly configurable, flexible, and high-performance RFID environment to experimentally explore the underlying physical conditions and to evaluate novel RFID technologies and designs. This paper introduces the concept of rapid prototyping in RFID and provides a survey of system simulators, demonstrators, and rapid prototyping environments. A guideline for the setup for such a rapid prototyping system applicable for RFID is presented, and its implementation is demonstrated. Finally, some exemplary measurements carried out with this rapid prototyping system are presented.

show abstract

Advanced synchronisation and decoding in RFID reader receivers

Cited by 23 publications

References 5 publications

A Robust Baseband Demodulator for ISO 18000-6C RFID Reader Systems

A Robust Baseband Demodulator for ISO 18000-6C RFID Reader Systems

A time-efficient information collection protocol for large-scale RFID systems

Evaluation and exploration of RFID systems by rapid prototyping

Contact Info

Product

Resources

About