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We consider the concurrent transmission scheduling problem in a rate-adaptive wireless personal area network (WPAN). In such networks, the physical layer can adaptively change modulation and coding schemes based on the interference level in the environment and accordingly change the data rate. The scheduling problem is to assign users to time slots so that the total throughput is maximized. The challenge...
In this paper, we introduce a framework to detect possible sybil attacks against a trust management scheme of peer-to-peer (P2P) networks used for limiting the proliferation of malware. Sybil attacks may underscore the effectivity of such schemes as malicious peers may use bogus identities to artificially manipulate the reputation, and therefore, the levels of trust of several legitimate and honest...
Peer-to-peer (P2P) networking is used by users with similar interests to exchange, contribute, or obtain files. This network model has been proven popular to exchange music, pictures, or software applications that are saved, and most likely executed at the downloading host. At the expense of this mechanism, worms, viruses, and intruding files find an open front door to the downloading host and giving...
With its capability of supporting high data rate services in a short range, the ultra-wide band (UWB) technology is appealing for future wireless personal area networks (WPANs). However, the WPAN medium access control (MAC) protocol in IEEE 802.15.3 standard was originally designed for narrow band communication networks, and it is inherently inefficient for UWB networks. In this paper, we explore...
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