A comparison study about Aloha anti-collision algorithms for RFID systems

Abstract

One of the biggest disadvantages of RFID systems is its low radio tag efficiency due to collisions. When several tags try to transfer data to the reader simultaneously, one is in the case of a multiple access. Time should be split between tags which In most proposed anti-collision algorithms, tags reply randomly to time slots chosen by the reader; therefore, it causes the Random Access (RA) and deformed data at the reader side. The purpose of this paper is to comparing the efficiency of several algorithms with MATLAB