utilizing physical layer information to improve rfid tag
utilizing physical layer information to improve rfid tag
utilizing physical layer information to improve rfid tag
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Figure 4.1. Two functioned estimation algorithm [2].<br />
4.1.3 Two-functioned estimation<br />
[2] presents a two-functioned estimation which claims an <strong>improve</strong>d estimation<br />
over the previoulsy stated estimation function. This approach uses the <strong>tag</strong> estimation<br />
function described above and calculates the error. It then updates the Q value using<br />
equation 4.1 for an enhanced estimate and starts the new round. Fig. 4.1 describes<br />
this procedure.<br />
4.2 Dynamic Tag set identification<br />
In some RFID applications, <strong>tag</strong>s enter and leave the reader’s field continuously.<br />
A reader at a dock door or one reading items off a conveyor belt has a dynamic<br />
number of <strong>tag</strong>s during the identification process. UHF RFID systems pose a more<br />
14
Change language