TY - GEN
T1 - Evaluation of MultiZigLoc
T2 - 11th International Conference on Mobile Computing and Ubiquitous Network, ICMU 2018
AU - Kimoto, Ryota
AU - Yamamoto, Takahiro
AU - Ishida, Shigemi
AU - Tagashira, Shigeaki
AU - Fukuda, Akira
N1 - Funding Information:
This work was supported in part by JSPS KAKENHI Grant Numbers JP15H05708 and JP17H01741.
Publisher Copyright:
© 2018 IPSJ.
PY - 2018/7/2
Y1 - 2018/7/2
N2 - Sensor localization is one of the big problems when building large scale indoor sensor networks. We are developing ZigLoc, a sensor localization system using Wi-Fi (IEEE802.11) APs (access points) as references [1], [2]. ZigLoc measures RSS (received signal strength) of Wi-Fi AP signals to localize ZigBee (IEEE802.15.4) sensor nodes. However, ZigLoc exhibits low accuracy because of inaccurate RSS measured on a single narrow-band ZigBee channel. In this paper, we present a highly accurate sensor localization system MultiZigLoc, which is an extended system of ZigLoc. Our key idea is to employ RSS measured in multiple ZigBee channels in fingerprinting localization. The RSS in multiple channels is dependent on the measured location because ZigBee uses narrow-band channels. Narrow-band ZigBee communication is highly affected by frequency selective fading, whose influence is dependent on channels and locations of both Wi-Fi APs and a sensor. We utilize fingerprints that separately handles RSS in multiple ZigBee channels to employ channel specific features. We conducted initial evaluations using RSS measured in a practical environment. The evaluations reveal that MultiZigLoc improved the localization accuracy by more than 10 points.
AB - Sensor localization is one of the big problems when building large scale indoor sensor networks. We are developing ZigLoc, a sensor localization system using Wi-Fi (IEEE802.11) APs (access points) as references [1], [2]. ZigLoc measures RSS (received signal strength) of Wi-Fi AP signals to localize ZigBee (IEEE802.15.4) sensor nodes. However, ZigLoc exhibits low accuracy because of inaccurate RSS measured on a single narrow-band ZigBee channel. In this paper, we present a highly accurate sensor localization system MultiZigLoc, which is an extended system of ZigLoc. Our key idea is to employ RSS measured in multiple ZigBee channels in fingerprinting localization. The RSS in multiple channels is dependent on the measured location because ZigBee uses narrow-band channels. Narrow-band ZigBee communication is highly affected by frequency selective fading, whose influence is dependent on channels and locations of both Wi-Fi APs and a sensor. We utilize fingerprints that separately handles RSS in multiple ZigBee channels to employ channel specific features. We conducted initial evaluations using RSS measured in a practical environment. The evaluations reveal that MultiZigLoc improved the localization accuracy by more than 10 points.
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U2 - 10.23919/ICMU.2018.8653263
DO - 10.23919/ICMU.2018.8653263
M3 - Conference contribution
AN - SCOPUS:85063457193
T3 - 2018 11th International Conference on Mobile Computing and Ubiquitous Network, ICMU 2018
BT - 2018 11th International Conference on Mobile Computing and Ubiquitous Network, ICMU 2018
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 5 October 2018 through 8 October 2018
ER -