文件名称:Improving-RFID-Efficiently
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- 2012-11-26
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A major problem with RFID systems is that a tag might not be read, in spite of being in
the reader’s range, due to collisions[4]. A collision is said to have occurred when various
devices interfere with each others’ operations, or their simultaneous operations lead to
loss of data. The reading process is not efficient due to various types of collisions, which
are classified as follows :-
• Single Reader-Multiple Tags collision : Multiple tags are present to communicate
with the reader. They respond simultaneously and reader is not able to interpret
the signal.
• Single Tag-Multiple Readers collision : Single tag is in the range of two or more readers.
Tags are mainly passive entities, they do not have enough power to differentiate
between frequency range of the readers.
• Reader-Reader interference : Two or more readers within the same frequency range
interfere with each others’ operations.-A major problem with RFID systems is that a tag might not be read, in spite of being in
the reader’s range, due to collisions[4]. A collision is said to have occurred when various
devices interfere with each others’ operations, or their simultaneous operations lead to
loss of data. The reading process is not efficient due to various types of collisions, which
are classified as follows :-
• Single Reader-Multiple Tags collision : Multiple tags are present to communicate
with the reader. They respond simultaneously and reader is not able to interpret
the signal.
• Single Tag-Multiple Readers collision : Single tag is in the range of two or more readers.
Tags are mainly passive entities, they do not have enough power to differentiate
between frequency range of the readers.
• Reader-Reader interference : Two or more readers within the same frequency range
interfere with each others’ operations.
the reader’s range, due to collisions[4]. A collision is said to have occurred when various
devices interfere with each others’ operations, or their simultaneous operations lead to
loss of data. The reading process is not efficient due to various types of collisions, which
are classified as follows :-
• Single Reader-Multiple Tags collision : Multiple tags are present to communicate
with the reader. They respond simultaneously and reader is not able to interpret
the signal.
• Single Tag-Multiple Readers collision : Single tag is in the range of two or more readers.
Tags are mainly passive entities, they do not have enough power to differentiate
between frequency range of the readers.
• Reader-Reader interference : Two or more readers within the same frequency range
interfere with each others’ operations.-A major problem with RFID systems is that a tag might not be read, in spite of being in
the reader’s range, due to collisions[4]. A collision is said to have occurred when various
devices interfere with each others’ operations, or their simultaneous operations lead to
loss of data. The reading process is not efficient due to various types of collisions, which
are classified as follows :-
• Single Reader-Multiple Tags collision : Multiple tags are present to communicate
with the reader. They respond simultaneously and reader is not able to interpret
the signal.
• Single Tag-Multiple Readers collision : Single tag is in the range of two or more readers.
Tags are mainly passive entities, they do not have enough power to differentiate
between frequency range of the readers.
• Reader-Reader interference : Two or more readers within the same frequency range
interfere with each others’ operations.
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Improving RFID Efficiently.pdf