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The key nodes in network play the critical role in system recovery and survival. Many traditional key nodes selection algorithms utilize the characters of the physical topology to find the key nodes. But they can hardly succeed in the mobile ad hoc network due to the mobility nature of the network. In this paper we propose a social-aware Kcore selection algorithm to work in the Pocket Switched Network...
Due to the network topology of an ad hoc network changes frequently and unpredictable, the security of multicast routing becomes more challenging than the traditional networks. In this paper, we describes a dynamic multicast height balanced group key agreement that allows a user in a multicast group to dynamically compose the group key and securely deliver multicast data for a multicast source to...
The mobility patterns of nodes is essential for the design of data dissemination in Delay-Tolerant network (DTN). This paper proposes a data dissemination policy by using human mobility model in DTN in which wireless devices are carried by humans, referred as HMP. HMP selects relay nodes rigidly and improves the efficiency of data forwarding by using the factor set, which is composed of Destination-Matching...
Future data communication networks show three emerging trends: increasing size of networks, increasing traffic volumes and dynamic network topologies. Efficient network management solutions are required that are scalable, can cope with large, and increasing, traffic volumes and provide decentralised and adaptive routing strategies that cope with the dynamics of the network topology. Routing strategies...
First we analyze the shortcomings of existing routing protocols in intermittently connected mobile networks (ICMN) such as high delivery delay, low success rate and cannot adaptive to the different network environment. With this in mind, we propose a new routing scheme called adaptive multiple copy multiple hop algorithm (AMM). By collecting the simple information about the status of the network,...
This paper proposes a fast forward medium access control protocol (FFMAC) for quality-of-service (QoS) guarantee in multihop IEEE 802.11s wireless mesh networks with multiple channels. To the best of our knowledge, the proposed protocol is the first one which considers the multihop and multichannel issues simultaneously. It provides higher priority for real-time applications, while remaining the distributed...
As mobile and wireless technologies become more pervasive in our society, people begin to depend on network connectivity regardless of their location. Their mobility, however, implies a dynamic topology where routes to a destination cannot always be guaranteed. The intermittent connectivity, which results from this lack of end-to-end connection, is a dominant problem that leads to user frustration...
This paper proposes a new heterogeneous multi-hop cellular IP (MCIP) network that integrates multi-hop communication with cellular IP. MCIP increases the coverage of the wireless network and improves the network robustness against adverse propagation phenomena by supporting communication in dead zones and areas with poor radio coverage. MCIP includes three components: location management, connection...
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