An efficient passive RFID system for ubiquitous identification and sensing using impulse UWB radio

• The next generation RFID system for ubiquitous identification and sensing requires both energy and system efficiency. This paper describes an efficient passive RFID system using impulse ultra-wideband radio (IR-UWB), at a 10 m operation range. Unlike conventional passive RFID systems which rely on backscatter and narrowband radio, IR-UWB is introduced as the uplink (communication from a tag to a reader). By utilizing a specialized communication protocol and a novel ALOHA-based anti-collision algorithm, such semi-UWB systems enable a high network throughput (2000 tag/sec) under the low power and low cost constraint. A low power tag design for proof of concept is finally presented.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)

Nyckelord

Broadband networks; Congestion control (communication); Electronic document identification systems; Radio links; Sensor networks

Impulse ultra-wideband radio (IR-UWB); Network throughput; Semi-UWB architecture; Ubiquitous sensing

Ubiquitous computing

TECHNOLOGY

TEKNIKVETENSKAP

Publikations- och innehållstyp

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