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A radio frequency circuit of reader was designed in this paper. According to the ISO18000–6B/C air interface protocol and the FCC standard, considering the application of the tag test, the radio frequency module of RFID reader and the filter of PLL circuit were designed in this paper. From the test result we can know that the performance of the RF module was well, satisfying the design target.
Network intensive video delivery often employs dynamic rate adaptation to trade off video quality for lower bandwidth. In this letter we describe a scheme for providing deterministic rate adaptation (RA) for mobile devices with limited native media player capabilities. The proposed scheme provides a client-side proxy and stitched media file (SMF) architecture for using native media player seek operations...
In multiple-relay cooperative wireless networks, opportunistic relaying is a promising scheme, where the most challenging problem is to choose the best relay efficiently. The traditional opportunistic relay selection scheme is based on the channel conditions of source-relay (S-R) and relay-destination (R-D) links. In comparison with conventional narrowband networks, an appealing merit of impulse radio...
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