Interference Analysis and Experimental Results of Passive UHF RFID Systems in Sub-1GHz Wireless Communications Systems
نویسندگان
چکیده
As ultra high frequency (UHF) radio frequency identification (RFID) technology, a smart recognition technology, has been gradually spreading to various applications, and several sub-1GHz wireless technologies are being standardized and developed. As such technologies operate at a specific frequency band (902–928MHz industrial, scientific, and medical bands), the impact of RF interference due to performance degradation of UHF RFID technology on the interference signal is emerging as a new obstacle. In this paper, we investigate the interference analysis and experimental results of passive UHF RFID systems in sub-1GHz wireless communications systems. By considering interference signal frequency and power, interference deployment, antenna polarization, RF system-level analysis and experimental verification are conducted to evaluate the impact of performance degradation in the UHF RFID system on the interference signal.
منابع مشابه
Hardware Design and Deployment Issues in UHF RFID Systems
Recently, radio frequency identification (RFID) have created emerging applications for tracking, sensing, and identifying various targets in wide-ranging areas such as supply chain, transportation, airline baggage handling, medical and biological industry, and homeland security. RFID systems with a variety of radio frequencies and techniques have been introduced. Among them, ultra-high frequenc...
متن کاملOn the Practical Aspects of Joint Passive Phase Conjugation and Equalization Underwater Communication Systems
Underwater acoustic communication systems suffer from the channel impairments which results in time spreading of the transmitted signal. In underwater environment, multiple replicas of the transmitted signal are received at the receiver through different paths, which causes significant Inter-Symbol Interference (ISI). Decision Feedback Equalizers (DFE) was utilized to overcome this type of inte...
متن کاملImpulse Radio UWB for the Internet-of- Things A Study on UHF/UWB Hybrid Solution
This dissertation investigates Ultra-Wideband (UWB) techniques for the next generation Radio Frequency Identification (RFID) towards the Internetof-Things (IoT). In particular, an ultra-high frequency (UHF) wireless-powered UWB radio (UHF/UWB hybrid) with asymmetric links is explored from system architecture to circuit implementation. Context-aware, location-aware, and energy-aware computing fo...
متن کاملA Modular UHF Reader Frontend for a Flexible RFID Testbed
Currently RFID (radio frequency identification) technology is pushing to the market mainly forced by industry. Passive tags in the UHF (ultra high frequency) region are of particular interest e.g. for supply chains, showing a tendency to become state of the art. Passive tags obtain their energy from the readers during communication. The reader has to power the tag by radiating energy at the sam...
متن کاملEffects of Interferences in Uhf Rfid Systems
The Radio Frequency Identification (RFID) applications are growing rapidly, especially in the UHF frequency band that is being used in inventory management. Passive UHF tags are preferred for these applications. In this paper, RFID reader-to-reader interference is analyzed. A model to estimate the minimum distance between readers to achieve a desired probability of detection in real multipath e...
متن کامل