TY - GEN
T1 - Avoidance method of interference between RFID systems including interference-zone change according to the distance between channels
AU - Uryu, Akira
AU - Umeda, Yohtaro
AU - Takyu, Osamu
AU - Mitsugi, Jin
PY - 2010/5/21
Y1 - 2010/5/21
N2 - In a long-range RFID system, the communication range is far longer than that in a conventional short-range RFID system. However, the long-range RFID system tends to suffer interfering problem between systems. In this report, we evaluate the interference avoidance method of assigning the frequency channels and time slots to reader with using the information of the reader position. From the computer simulation, we show that the number of required time slots for avoiding the interference can be reduced and the frequency utilization efficiency can be increased when the dependence between the interference geometrical distance between readers and the frequency distance between channels is taken into account.
AB - In a long-range RFID system, the communication range is far longer than that in a conventional short-range RFID system. However, the long-range RFID system tends to suffer interfering problem between systems. In this report, we evaluate the interference avoidance method of assigning the frequency channels and time slots to reader with using the information of the reader position. From the computer simulation, we show that the number of required time slots for avoiding the interference can be reduced and the frequency utilization efficiency can be increased when the dependence between the interference geometrical distance between readers and the frequency distance between channels is taken into account.
KW - Interference between reader
KW - Interference zone
KW - RFID
KW - UHF
UR - http://www.scopus.com/inward/record.url?scp=77952415626&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77952415626&partnerID=8YFLogxK
U2 - 10.1109/RWS.2010.5434134
DO - 10.1109/RWS.2010.5434134
M3 - Conference contribution
AN - SCOPUS:77952415626
SN - 9781424447268
T3 - 2010 IEEE Radio and Wireless Symposium, RWW 2010 - Paper Digest
SP - 204
EP - 207
BT - 2010 IEEE Radio and Wireless Symposium, RWW 2010 - Paper Digest
T2 - 2010 IEEE Radio and Wireless Symposium, RWW 2010
Y2 - 10 January 2010 through 14 January 2010
ER -