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RFID is now attracting many interests for its bright future in commercial. The paper introduces UHF RFID reader software design. The design used the hierarchical structure. It included the physical layer and the tag-identification layer. Physical layer is that the coding and modulation. It is described in verilog HDL language and implemented in FPGA. Tag-identification layer are commands which used...
At present, the speed of the communications on PCI is limited by PCI bus, the number of the computer's memory slots and the memory capacity significantly increased, and the management of memory becomes advanced. So, in this paper, the direct memory communication method, abbreviated as DMC, is forwarded. The NIC (the Network Interface Card) based on DMC is inserted into a memory slot, the data is written...
RFID is a popular automatic identification technology currently, which will have large opportunities in the future. Communication algorithm is a key step for the design of RFID system. This paper propose design and implementation communication algorithm in software. There are many research activities in RFID hardware systems, but there is few in software infrastructure. In order to the implementation...
This paper introduces a verification development platform for RFID reader. The RFID reader is compatible with EPC Class-1, Generation-2 Standard, operating at the 915 MHz band. The UHF RFID reader includes RF analog front end (AFE), the base band and clock. The RFID RF AFE contains transmitting circuit, receiving circuit, frequency synthesize, circulator, etc. The base band contains the FPGA chip,...
This paper introduces a system design for RFID reader. The RFID reader is compatible with EPC Class-1, Generation-2 Standard, operating at the 915 MHz band. The UHF RFID reader includes RF analog front end (AFE), the base band design and clock control. The RFID RF AFE contains transmitting circuit, receiving circuit, frequency synthesize, circulator, etc. The base band contains the FPGA chip, 100...
RFID is now attracting many interests for its bright future in commercial and daily use. The paper introduces a base band design of UHF RFID reader, which is compatible with EPC Class-1, Generation-2 Standard. The base band contains AD, DA, modulator, demodulator, code, decode, control unit. The Nios II-based control unit achieves rapid, flexible and efficient verification and development.
Network intrusion detection systems (NIDS) are more and more important for identifying and preventing the malicious attacks over the network. This paper proposes a novel cost-effective high speed pattern matching algorithm (named MSH) for NIDS. By applying the characteristics of magic states, a new observation from the deterministic finite state automata (DFA), the proposed MSH constructs a tiny data...
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