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The node replica attack is known to be dangerous to wireless sensor networks (WSNs) because it enables the adversary to extend the damage throughout the network with very low cost. To stop such attack, we propose a similarity estimation based scheme with group deployment knowledge. Compared with prior works, our proposal provides extra functionality that prevent replica from generating false location...
Global Positioning System (GPS) has been used widely these days, and it can support a growing number of commercial products, i.e. scientific uses, tracking, and surveillance. There are lots of interesting topics for GPS, and one of the important technologies is how to reasonable design the data frame structure. A good designed structure can improve the efficiency of the frame, and achieve high reliability...
This work considers the communication scenario where multiple sources transmit information to one or more receivers and these receivers request the information from all the sources. We construct a secret and reliable coding mechanism for noncoherent multisource network coding by extending the work [9, 10] to multisource case. Although the network scenario suffers from an adversary that can re-select...
In order to approach the theoretical limit of the decode-and-forward strategy for the half-duplex relay channel, distributed LDPC coding schemes have been proposed. In these schemes, the code applied at the source should be decodable at the relay to yield correct parity bits. With the help of the parity bits the destination should also be able to estimate the transmitted information correctly. For...
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