Simulation and Application of ISMA as Anti - collision Algorithm in RFID System to Improve its Performances by Capture Effect

نویسنده

  • Hadjer SAADI
چکیده

In this article we are interested of the study of the influence of capture effect to improve the performance of RFID systems, especially the time of detection of tags and collision avoidance, and by taking a comparison between four algorithms we concluded that ISMA seems to be the best one to avoid collision. Here we simulated the whole system by a direct projection of the communication systems, by considering user terminals as tags and the access point as reader. If the capture effect is not taken into account, the system is modeled under wired communication and considered as wired system. We used here four algorithms of TDMA method: Aloha, Slotted Aloha, CSMA and ISMA as stochastic methods. The results illustrate better performance when using capture effect in both throughput of system and delay time, and ISMA shows the best performances compared to others.

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تاریخ انتشار 2013