Optimization on Guard time and SynchronizationCycle for TDMA-based Deterministic RFID System
2015 (English)Conference paper (Other academic)
This paper presents optimizations on guard time and synchronization cycle for Time Division Multiple Access (TDMA) based deterministic Radio Frequency Identification (RFID) system. The TDMA scheme can provide guaranteed latency and high throughput for RFID system that includes fixed number of users (tags) and requests long-message transmission. However, collisions due to accumulated clock drifts of the active RFID tags equipped with independent self-clocked microcontrollers are the major challenge. In this work, we model relations between guard time and synchronization cycle used to tolerate the accumulated clock drift and reduce the probability of collisions for an extended-star RFID system. Constraints of safe guard time and synchronization cycle are proposed to consider energy efficiency and time efficiency. Moreover, optimization on guard time and synchronization cycle are explored in terms of transmission time, tag number, energy efficiency and time efficiency. The simulation results indicate that system with long transmission time (around 1 ms) enjoys higher time and energy efficiency under optimal configuration of guard time and synchronization cycle.
Place, publisher, year, edition, pages
IEEE conference proceedings, 2015.
Other Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-169526DOI: 10.1109/RFID-TA.2015.7379800ISI: 000380518300011ScopusID: 2-s2.0-84966600922OAI: oai:DiVA.org:kth-169526DiVA: diva2:822043
Sixth annual IEEE conference on RFID Technology and Applications (RFID-TA),RFID-TA 2015, September 16-18, 2015, Tokyo, Japan
QC 201603142015-06-162015-06-162016-09-05Bibliographically approved