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Due to the rapid increase of mobile user population and the dynamical change of network topology in mobile social networks (MSNs), how to efficiently deliver content among mobile social users becomes a new challenge. In this paper, an incentive content delivery mechanism based on the weighted directed graph is proposed to encourage users to obtain and provide content in the MSNs. Specifically, firstly...
A Mobile Social Network (MSN) is a typical Delay Tolerant Network (DTN) composed of mobile nodes with social characteristics. Routing design and optimization are difficult because of the fast topology changes in such network. However, realistic mobility trace shows that mobile nodes in MSNs generally visit a few locations called homes, frequently, while other locations are visited less frequently...
With the ever increasing number of user terminals and fast-growing demands for local service, D2D (Device-to-Device) relay communication technology is becoming essential to the next generation mobile networks, where an efficient relay selection scheme not only improves the system performance but also conserves energy consumption. Aiming at encouraging relay node to voluntarily forward data and regarding...
Device to Device (D2D) based mobile social networking in proximity (MSNP) has witnessed great development on smartphones. Message forwarding/data routing in MSNP relies on the movement of individuals and their encounter opportunities to relay data to the destination, so-called store-carry-forward (SCF) mode. Due to lacking continuous network connectivity and must handle dynamic topology, message forwarding...
An incentive problem of ad hoc networks still remains for relaying frames from other nodes. By utilizing the Social Network System such as Twitter and Facebook, it is possible to estimate the degree of intimacy of friendship links not only to direct friends but also indirect friends such as friends-of-friends. If we provide links of ad-hoc network in relation to direct/indirect friends instead of...
Node mobility and end-to-end disconnections in Delay Tolerant Networks (DTNs) greatly weaken the effectiveness of data transmission. Although social-based strategies can be used to deal with the problem, most existing approaches adopt multicopy strategy to forward messages which inevitably add more unnecessary cost. One of the most important issues is the selection of the best intermediate node to...
Recent advances in short range wireless communications along with exponential growth of the number of mobile devices are key factors for the emergence and development of Mobile Social Networks. Indeed, using proximity based approach to disseminate social content among individuals will reduce the load on the telecommunication operator infrastructure and will speedup the availability of the content...
In this paper, to simultaneously protect the location privacy of each mobile user and improve the performance of the data dissemination process in the mobile social network (MSN), we propose a privacy-preserving data dissemination (PAD) protocol by utilizing the Paillier cryptosystem and its homomorphic property. With PAD protocol, the delivery ratio of the MSN will be improved by selecting several...
Mobile Social Networks (MSNs), as a type of Delay Tolerant Networks (DTNs) automatically structured by portable devices, have aroused great attention. Comparing with conventional DTNs, data routing in MSNs is a stronger challenge, due to the existence of the nodes' social selfishness, a inherent social attribute of Mobile Social Networks. Social selfishness causes a node is just willing to forward...
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