Director of Research (if dissertation) or Advisor (if thesis)
Hajek, Bruce
Loparo, Ken
Department of Study
Electrical & Computer Eng
Discipline
Electrical Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
M.S.
Degree Level
Thesis
Keyword(s)
Radio frequency identification (RFID)
Anti-Collision
Coherent Collision
ALOHA
Dynamic Framed Slotted ALOHA (DFSA) variant
Collision
Load Modulation
Abstract
RFID technology has enabled great advances in the asset tracking industry. Shipping,
warehouse inventory, and storefront security are just a few examples where the
application of RFID systems has increased efficiency and lowered cost. A major area of
research at the present time is concerned with optimal ways of reading multiple ID tags
using a single reader as efficiently as possible. These methods are called “Anti-
collision” protocols, and they all seek to somehow arbitrate how a multitude of ID tags
and a reader negotiate the process of reading all of the ID tags. As the name implies,
nearly all of the methods seek to detect and avoid collisions between ID tags, therefore
reading one ID tag at a time. This thesis seeks to present another, novel approach to
solving the same problem. The proposed method seeks not to avoid collisions, but
rather to orchestrate them in a manner that allows overlapping transmission of the ID
tags while identifying all of the ID tags that take part in the transmission. This method
will provide a highly time-efficient collision management protocol.
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