Kakinada Institute of Engineering and Technology for Women
Abstract
In mobile ad hoc networks, nodes are dynamically changing their locations. MOBILE ad hoc networks (MANETs) consist of a collection of mobile nodes which can move freely. These nodes can be dynamically self-organized into arbitrary topology networks without a fixed infrastructure. A mobile ad hoc network consists of wireless hosts that may move often. Movement of hosts results in a change in routes, requiring some mechanism for determining new routes. Several routing protocols have already been proposed for ad hoc networks. MSNets can be viewed as a kind of socially aware Delay/ Disruption Tolerant Networks (DTNs). Thanks to the popularization of smart phones (e.g., iPhone, Nokia N95,and Blackberry), MSNets have begun to attract more attention. However, intermittent and uncertain network connectivity make data dissemination in MSNets a challenging problem. Broadcasting is the operation of sending data from a source user to all other users in the network. Most of the envisioned services (ranging from safety applications to traffic management) rely on broadcasting data to the users inside a certain area of interest. For example, location-based services (product prices, tourist points of interest, etc.) can be advertised from salesmen to near-by users. In this paper The objective is to broadcast data from a superuser to other users in the network. There are two main challenges under this paradigm, namely 1) how to represent and characterize user mobility in realistic MSNets; 2) given the knowledge of regular users' movements, how to design an efficient superuser route to broadcast data actively. We first explore several realistic data sets to reveal both geographic and social regularities of human mobility, and further propose the concepts of geocommunity and geocentrality into MSNet analysis
