Analysis of the variability of RSSI values for active RFID-based indoor applications

Gülben ÇALIŞ; Burçin BECERİK-GERBER; Ahmet Burak GÖKTEPE

Makale detayları

Analysis of the variability of RSSI values for active RFID-based indoor applications

Yazarlar:

Gülben ÇALIŞ | Burçin BECERİK-GERBER | Ahmet Burak GÖKTEPE

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Engineering and Environmental Sciences 2013 Vol.37 Issue 2, pp.186-210

Belge Tipi:

Makale

Yayın Tarihi:

1/2013

Belge Dili:

Türkçe

Document ID (Org No.):

2000744569

Sıklık:

Üç Yıllık

eISSN:

1303-6157

pISSN:

1300-0160

Özet:

 

Radio frequency identification (RFID) technology-based indoor localisation   solutions have been widely adapted by many industries. An important factor   affecting the performance of RFID applications is the received signal   strength indication (RSSI) values. Indoor setting and layout may have direct   effects on the RSSI variability, which, in turn, affect the robustness of   RFID applications' outcomes. Effects of different environmental factors on   RSSI values for RFID tags have been observed and reported in previous   literature; however, there is a lack of research that addresses the effects   of such parameters on RSSI values in a holistic and quantified manner. In   this study, 2 different test scenarios are used to compare and assess the   relationships between the RSSI values and system parameters for active RFID   tags in indoor applications. These parameters include: 1) type of materials   that tags are attached to, 2) obstructions between tags and an antenna, 3)   relative elevation between tags and an antenna, and 4) relative orientation   of tags and an antenna. The effect of each parameter was evaluated by   statistical analyses. The Shapiro--Wilk, Bartlett's, Levene's, Kruskal--Wallis,   Mann--Whitney, and Games--Howell tests were conducted. The results show that   the data groups for all of the system parameter tests were nonnormally   distributed and heterogeneous. Based on the Mann--Whitney test results, U   values for comparisons of RSSI values in both test beds were found to be   0.00 for all of the system parameters. The results indicate that different   system parameters caused variations in RSSI values as well as the   detectability rates. Nevertheless, different test beds changed the influence   of each parameter on the RSSI values. It is concluded that testing   environment is a prominent parameter that affects the results and   fluctuations in the RSSI values, and that the detectability rates cannot be   attributed to any specific parameter that has been included in this study.

 

Radio frequency identification (RFID) technology-based indoor localisation   solutions have been widely adapted by many industries. An important factor   affecting the performance of RFID applications is the received signal   strength indication (RSSI) values. Indoor setting and layout may have direct   effects on the RSSI variability, which, in turn, affect the robustness of   RFID applications' outcomes. Effects of different environmental factors on   RSSI values for RFID tags have been observed and reported in previous   literature; however, there is a lack of research that addresses the effects   of such parameters on RSSI values in a holistic and quantified manner. In   this study, 2 different test scenarios are used to compare and assess the   relationships between the RSSI values and system parameters for active RFID   tags in indoor applications. These parameters include: 1) type of materials   that tags are attached to, 2) obstructions between tags and an antenna, 3)   relative elevation between tags and an antenna, and 4) relative orientation   of tags and an antenna. The effect of each parameter was evaluated by   statistical analyses. The Shapiro--Wilk, Bartlett's, Levene's, Kruskal--Wallis,   Mann--Whitney, and Games--Howell tests were conducted. The results show that   the data groups for all of the system parameter tests were nonnormally   distributed and heterogeneous. Based on the Mann--Whitney test results, U   values for comparisons of RSSI values in both test beds were found to be   0.00 for all of the system parameters. The results indicate that different   system parameters caused variations in RSSI values as well as the   detectability rates. Nevertheless, different test beds changed the influence   of each parameter on the RSSI values. It is concluded that testing   environment is a prominent parameter that affects the results and   fluctuations in the RSSI values, and that the detectability rates cannot be   attributed to any specific parameter that has been included in this study.

Makale detayları

Analysis of the variability of RSSI values for active RFID-based indoor applications

Yazarlar: Gülben ÇALIŞ | Burçin BECERİK-GERBER | Ahmet Burak GÖKTEPE

Yayıncı: TUBITAK

Dergi: Turkish Journal of Engineering and Environmental Sciences 2013 Vol.37 Issue 2, pp.186-210

Belge Tipi: Makale

Yayın Tarihi: 1/2013

Belge Dili: Türkçe

Document ID (Org No.): 2000744569

Sıklık: Üç Yıllık

eISSN: 1303-6157

pISSN: 1300-0160

Sayı

Yazarlar:

Gülben ÇALIŞ | Burçin BECERİK-GERBER | Ahmet Burak GÖKTEPE

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Engineering and Environmental Sciences 2013 Vol.37 Issue 2, pp.186-210

Belge Tipi:

Makale

Yayın Tarihi:

1/2013

Belge Dili:

Türkçe

Document ID (Org No.):

2000744569

Sıklık:

Üç Yıllık

eISSN:

1303-6157

pISSN:

1300-0160