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Cognitive radio has been proposed as the means for secondary users to promote the efficient utilization of spectrum. Meanwhile, Cooperative relay is well known as a powerful technology to combat signal fading in a wireless medium. In this paper, we discuss a new relay selection algorithm for cognitive radio ad-hoc networks by utilizing cooperative relay to improve spectrum diversity and transmission...
Wireless sensor networks consist of low-cost and low- power radio devices and are deployed in open and unprotected areas. Privacy is becoming one of the major issues that jeopardize the successful deployment of wireless sensor networks. While confidentiality of the message can be ensured through content encryption, it is much more difficult to adequately address the source-location privacy. For wireless...
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