International Journal of Nonlinear Analysis and Applications

A novel algorithm LWFO for redundant reader elimination in RFID networks

Document Type : Special issue editorial

Authors

1 Department of Computer Engineering, Qom branch, Islamic Azad University, Qom, Iran.

2 Iran Telecom. Research center

Abstract

Abstract- Today, the Radio frequency identification system is widely used in various applications on a large scale. The readers must be densely deployed in order to cover their entire work area. If the number of readers is not optimal, some readers will be redundant, which will reduce the efficiency of the whole system. In more detail, redundant readers increase system overhead, unnecessary tag-reader communication, tag collision, and reader collision, and also, decrease the lifetime of RFID networks. The redundant reader elimination problem is a process that finds the least number of readers to cover all system tags. It is proved that the redundant reader elimination problem is NP_hard. One of the useful tasks in eliminating redundant readers is improving the performance of existing approximation algorithms. In this paper, we propose a distributed algorithm, the LWFO algorithm, which combines the count base algorithm (CBA) and a weighting algorithm. The simulation results show that the proposed algorithm reduces reader redundancy compared to existing algorithms also processing time is reasonable.

Keywords

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International Journal of Nonlinear Analysis and Applications
Volume 15, Issue 8
August 2024
Pages 171-180
  • Receive Date: 09 November 2022
  • Revise Date: 27 January 2023
  • Accept Date: 12 February 2023