An Investigation into the Energy Efficiency of Pure and Slotted Aloha Based REID Anti-Collision Protocols

Authors

Dheeraj Klair, University of WollongongFollow
K. W. Chin, University of WollongongFollow
R. Raad, University of WollongongFollow

RIS ID

21940

Publication Details

This conference paper was originally published as Klair, DK, Chin, KW, Raad, R, An Investigation into the Energy Efficiency of Pure and Slotted Aloha Based REID Anti-Collision Protocols, IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks WoWMoM 2007, 18-21 June, 1-4.

Abstract

This paper investigates the energy efficiency of RFID anti-collision protocols and their suitability for use in RFID-enhanced wireless sensor networks (WSNs). We present a detailed analytical methodology and an in-depth qualitative and Aloha anti-collision protocols and their variants. We find that Slotted Aloha variants that employ muting with early-end are the most energy efficient, but are computationally expensive. Overall, for all Aloha variants we investigated, if the offered load is very high, tag responses cause a bottleneck at the reader. Thereby, resulting in no tags being identified and incur significant identification delays - thus severely impacting a sensor node's battery life.