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Ekşim, Ali
Journal of Communications Software and Systems, 03/2013, Letnik: 9, Številka: 1Journal Article, Paper
Radio Frequency Identification (RFID) is a pervasive wireless technology to automatically identify, track, and locate objects or people. RFID technology falls into three categories with respect to tags' energy source: passive, semi-passive and active. Active RFID tags are preferred in many applications for their advantages: Visibility, security, quality and high distance communication. Active RFID systems present a couple of challenges that are vital and should be overcome before enjoying their benefits. One of the most important new challenges is energy-efficient data gathering. ISO/IEC 18000-7, operating at 433 MHz, is one of the active RFID standards. We realize that a tag consumes too much energy source to perform a satisfactory communication compliance with the standard in Rayleigh fading channel. Motivated by this need, in this paper, we aim to ameliorate a RFID system performance from the perspective of better communication and energy efficiency. Detailed and extensively simulations show that using multiple antennas with limited feedback schemes significantly diminish the frame error rates and increase the battery lifetime. Moreover, we have evaluated the performance of the limited feedback schemes when the wireless channels are correlated and multiple antennas are present at the reader.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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