Design of a Novel Medium Access Control Protocol for Optimization of CDMA-based Passive RFID: Bitwise CDMA
Date
2018-05
Authors
Doany, Ramsey Ziad
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Abstract
UHF passive RFID is a wide and continuously growing technology. As such, it is
becoming increasingly important to develop highly efficient and inexpensive RFID
systems. Presently available RFID tags utilize MAC protocols that are highly susceptible
to noise, inefficiently utilize interrogator power, and in the case of CDMA-based RFID,
require internal power sources. There exists a need to develop passive RFID systems that
efficiently use interrogator power, are robust in high noise environments, and can
simultaneously read multiple RFID tags. This thesis develops the background of currently
available RFID protocols with a focus on CDMA-based RFID protocols, analyzes their
trade-offs, and provides a novel protocol (Bitwise CDMA) to overcome several of the
disadvantages of CDMA-based systems while maintaining the benefits of such systems.
The framework for inexpensive UHF RFID tag research and development is also
discussed as currently available tools are limited in functionality and/or prohibitively expensive.
Description
Keywords
RFID, CDMA, Wireless communication, Communication systems, FPGA, Near-far problem
Citation
Doany, R. Z. (2018). <i>Design of a novel medium access control protocol for optimization of CDMA-based passive RFID: Bitwise CDMA</i> (Unpublished thesis). Texas State University, San Marcos, Texas.