期刊名称：International Journal of Distributed Sensor Networks
印刷版ISSN：1550-1329
电子版ISSN：1550-1477
出版年度：2015
卷号：2015
DOI：10.1155/2015/154064
出版社：Hindawi Publishing Corporation
摘要：Tag collision is one of the main issues impacting the performance of radio-frequency identification (RFID) systems. Several research efforts have been done in order to solve such problem. Current RFID standards, such as EPCGen2 and ISO-18000-7, adopt ALOHA-based protocols as the basis to solve collisions. In recent years, there has been a trend on designing schemes that split the interrogation zone into smaller regions with the aim of improving the system’s performance. In this paper, we evaluate and optimize the performance of ALOHA-based protocols for this new type of partitioning schemes. We establish the guidelines for adapting ALOHA protocols to this new approach in order to exploit the advantages it offers. Thus, we propose a new version of the EPCGen2 standard adapted to the new partitioning schemes, which overcomes its counterpart for the traditional approach, significantly reducing the identification delay, which is the main parameter to optimize in RFID.
