A mobile social network system (MSNS) allows groups of friends to be accessed and engaged with from one's mobile phone. Dodgeball is a MSNS that seeks to facilitate social connection and coordination among friends in urban public spaces. Based on a year-long qualitative field study, this article reports on the social and behavioral norms of Dodgeball use. A comparison between social network sit...

Personal mobile devices and mobile ad-hoc networks are the technical ingredients to build social networks in mobile environments. We present a framework that leverages social networks in order to obtain a collaborative environment for social applications. The framework provides a flexible means for the specification of collaboration protocols and allows their transparent integration with the ap...

in recent years mobile networks have expanded dramatically, compared with other wireless networks. routing protocols in these networks are designed with the assumption that there is no attacker node, so routing protocols are vulnerable to various attacks in these networks. in this paper, we review the network layer attacks and then we simulate the impact of black hole attack on ad hoc on demand...

in this paper, we propose a scheme to improve existing ad-hoc on-demanddistance vector (aodv) routing protocol by discovering and maintaining multiplenon-overlapped routes. our routing protocol is a multipath version of aodvrouting protocol that considers only the disjoint path. due to non-overlappingamong paths, when a link breaks in the network, only one of paths is expired. thepresented rout...

Nowadays Web based social networks are becoming more and more popular. As the functions of social networks are increasing it is reasonable to consider how mobile devices can connect to them. The paper is based on our experiences of implementing a Web based system which functions are available from mobile phones via Web services. A mobile client was also implemented that way the special abilitie...

The proliferation of mobile handheld devices in combination with the technological advancements in mobile computing has led to a number of innovative services that make use of the location information available on such devices. Traditional yellow pages websites have now moved to mobile platforms, giving the opportunity to local businesses and potential, near-by, customers to connect. These plat...

Today we experience the proliferation of social networking applications. However mobile devices are only scarcely involved as individual members in such networks. In this paper we investigate how mobile phones can participate in social networks. The phonebook of the mobile devices represents basically a small social network which belongs to the owner of the device. The paper introduces mobile-c...

Exploring demographics and social networks of Internet users are widely used for many applications such as recommendation systems. The popularity of mobile devices (e.g., smartphones) and location-based Internet services (e.g., Google Maps) facilitates the collection of users’ locations over time. Despite recent efforts to predict users’ attributes (e.g., age and gender) and social networks bas...