TY - GEN
T1 - A nearest transmitter classification method for VLC based positioning system
AU - Sertthin, Chinnapat
AU - Ohtsuki, Tomoaki
AU - Takyu, Osamu
AU - Fujii, Takeo
AU - Umeda, Yohtaro
PY - 2011/12/1
Y1 - 2011/12/1
N2 - Nearest transmitter information is a mandatory requirement for utilizing Switching Estimated Receiver Position (SwERP) scheme, of which was proposed to enhance accuracy of Visible Light ID (VLID) positioning system. The conventional approach is achieved by controlling Sensitivity (R xS) limit. Conversely, general distance estimation by optical received power can also be used. Both of the mentioned methods have disadvantage on implementation complexity and inaccuracy due to noise fluctuation, respectively. In this paper, we propose a nearest transmitter classification (NTC) method by utilizing Optical Orthogonal Code (OOC) with On-Off Keying (OOK) modulation at transmitters (T xs), and perform oversampling at a receiver (R x) to overcome the limitation of bandwidth resolution (B). The results confirm that the proposed method can classify the nearest T x accurately, with some tradeoff with computation complexity from the increment of oversampling factor (O c).
AB - Nearest transmitter information is a mandatory requirement for utilizing Switching Estimated Receiver Position (SwERP) scheme, of which was proposed to enhance accuracy of Visible Light ID (VLID) positioning system. The conventional approach is achieved by controlling Sensitivity (R xS) limit. Conversely, general distance estimation by optical received power can also be used. Both of the mentioned methods have disadvantage on implementation complexity and inaccuracy due to noise fluctuation, respectively. In this paper, we propose a nearest transmitter classification (NTC) method by utilizing Optical Orthogonal Code (OOC) with On-Off Keying (OOK) modulation at transmitters (T xs), and perform oversampling at a receiver (R x) to overcome the limitation of bandwidth resolution (B). The results confirm that the proposed method can classify the nearest T x accurately, with some tradeoff with computation complexity from the increment of oversampling factor (O c).
UR - http://www.scopus.com/inward/record.url?scp=84857584987&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84857584987&partnerID=8YFLogxK
U2 - 10.1109/PIMRC.2011.6139702
DO - 10.1109/PIMRC.2011.6139702
M3 - Conference contribution
AN - SCOPUS:84857584987
SN - 9781457713484
T3 - IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
SP - 1259
EP - 1263
BT - 2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC'11
T2 - 2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC'11
Y2 - 11 September 2011 through 14 September 2011
ER -