Bio-inspired Algorithm for Optimal Dynamic Deployment of RFID Reader Networks

Radio frequency identification (RFID) technology is a type of automatic identification system. The purpose of an RFID system is to enable data to be transmitted by a portable device, called a tag, which is read by an RFID reader and processed according to the needs of a particular application. In recent years, an enormous amount of technical and commercial development of RFID systems has been demonstrated in many industrial applications, such as production, logistics, supply chain management and asset tracking. Reader collision occurs when co-located readers are simultaneously active. Specifically, reader collisions occur at tags situated in the vicinity of two or more readers that simultaneously interrogate tags. Such tags may be unable to correctly decode reader queries, leading to faulty reads or misreads. Along with the simple description of chemotactic behavior in the original Bacterial Foraging Optimization (BFO) algorithm, SABFO also incorporates an adaptive search strategy, which allows each bacterium to strike a balance between exploration and exploitation during algorithmic execution by tuning its run-length unit self adaptively