Ultrawide Bandwidth RFID: The Next Generation? Ultrawideband technology is seen to be a promising means to provide improved area coverage, better resilience to interference, high multiple-access capability, and ranging resolution to RFID systems.

Future advanced radio-frequency identification (RFID) systems are expected to provide both identification and high-definition localization of objects with improved reliability and security while maintaining low power consumption and cost. Ultrawide bandwidth (UWB) technology is a promising solution for next generation RFID systems to overcome most of the limitations of the current narrow bandwidth RFID technol- ogy such as: reduced area coverage, insufficient ranging resolution for accurate localization, sensitivity to interference, and scarce multiple-access capability. In this paper, a survey of current progress in the application of the UWB technology for RFID systems is presented with particular attention to low- complexity solutions for high-definition tag localization.

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