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Dynamic Grouping Frame-Slotted Aloha
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 37 - Number 4 |
| Year of Publication: 2012 |
| Authors: Mian Hammad Nazir, Nathirulla Sheriff |
10.5120/4593-6546
|
Mian Hammad Nazir, Nathirulla Sheriff . Dynamic Grouping Frame-Slotted Aloha. International Journal of Computer Applications. 37, 4 ( January 2012), 1-5. DOI=10.5120/4593-6546
Abstract
Passive UHF RFID systems using Dynamic Frame-Slotted ALOHA (DFSA) adjust the frame size according to the number of tags, but frame size N is equals to 2^Q and cannot be adjusted exactly to the number of tags to be identified. In this paper, we proposed a new Aloha based anti-collision algorithm which divides the tags and adjusts the frame sizes in such a manner as to always keep the system efficiency optimal. The algorithm is also designed in order to reduce the identification time for identifying the total number of tags. As a result the proposed algorithm uses minimum number of slots to read the tags with minimum identification time. Simulation results show that the algorithm gives maximum slot efficiency with every frame maintaining the system efficiency close or equal to 36.8% compared to other anti collision algorithms.
References
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