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Access control is a key mechanism to secure outsourced data in mobile clouds. Some existing solutions are proposed to enforce flexible access control on outsourced data or reduce the computations performed by mobile devices. However, less attention has been paid to the efficiency of revocation when there are mobile devices needed to be revoked. In this paper, we put forward a new solution, referred...
Different from the previous duster-based structure, in this paper, we present a grid-based load-balanced routing method (GLRM) that aims to use a controlled sink to achieve load-balance in a non-uniform distributed network. Cell-header election of each cell is based on three parameters, i.e. the number of data packets that nodes need to relay, the Euclidean distance to the mid-point of cells and residual...
Wireless sensor networks (WSNs) is an important application for real time monitoring and detecting the phenomenon in a coal mine, which can ensure the workers' life safety and reduce the financial loss. But the drawback of WSNs is that the nodes are easy to die. To balance the traffic load and optimize the networks' routing seems more important. Clustering is an effective approach to prolong the network...
The convergence business has become a new driving force to promote the growth of mobile users. In order to accelerate the development of convergence business, according to the characteristics of the convergence business, this paper designed a new convergence product, analyzed and elaborated the convergence business using Logistic functions and network externality theory, and predicted the development...
Delay tolerant networks are a type of wireless mobile networks that do not guarantee the existence of a path between a source and a destination at any time. In such a network, one of the critical issues is to reliably deliver data with a low latency. Naive forwarding approaches, such as flooding and its derivatives, make the routing cost (here defined as the number of copies duplicated for a message)...
Delay tolerant networks (DTNs) are wireless mobile networks that do not guarantee the existence of a path between a source and a destination at any time. When two nodes move within each other's transmission range during a period of time, they can contact each other. The contact of nodes can be periodical, predictable and nonpredictable. In this paper, we assume the contact of nodes is nonpredictable...
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