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Threshold signature schemes are useful in MANET because of the mobility and weak connectivity. Meanwhile, order-specified multi-signature schemes are valuable in some multi-level security systems. To meet such kind of requirements, we proposed a secure threshold order-specified multi-signature scheme based on RSA in this paper. The scheme is designed based on a modified threshold RSA signature scheme...
Multihop cellular network (MCN) has been proposed to incorporate the flexibility of ad hoc networks into traditional cellular networks. Little work has been reported on the channel assignment for MCN. In this paper, we investigate the feasibility of applying the characteristics of the hierarchical overlaid microcell/macrocell architecture and the clustering of MANETs for channel assignment in TDMA-based...
The (t, n) threshold cryptography is an important method for sharing a group secret message in dynamic groups such as ad hoc groups. Using subliminal channel, one can send a secret message to an authorized receiver and the message cannot be discovered by any unauthorized receivers; it satisfies different requirements of different kind of users. We discussed the security of HCW scheme and proposed...
While it has been shown that TCP Vegas provides better performance compared to TCP Reno, studies have identified various issues associated with the protocol in mobile ad hoc networks. We propose modifications to the congestion avoidance mechanism of the TCP Vegas to overcome these limitations. Our solution, named TCP Vegas_M, is dependent on FEDM fuzzy logic theory to distinguish network congestion...
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