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Pervasive social communications are instant social activities through communications based on mobile elements, e.g., via mobile ad hoc networks. Meanwhile, fashionable technology is becoming a trend in Human-Computer Interaction (HCI) design. It extends the traditional understanding of HCI by emphasizing aesthetic element. This paper investigates how to use fashionable technology in pervasive social...
With the growing popularity of wireless mobile ad hoc networks(MANETs), many security concerns have arisen from MANETs especially the misbehaving nodes pose a major threat. Node misbehaviour in ad hoc network is caused by lack of cooperation and goes under the name node selfishness. A selfish node does not directly intent to damage other nodes with active attacks but it simply does not cooperate in...
In mobile ad hoc networks, the security enforcement and its implementation becoming increasingly difficult due to quasi-static nature of the mobile nodes (wireless communication devices), no fixed network topology and more importantly absence of centralized authority. In such networks, communication links between nodes may be bandwidth constrained, messages typically roamed in multi-hoped fashion,...
A mobile ad hoc network (MANET) is a collection of mobile nodes that communicate with each other by forming a multi-hop radio network. Security remains a major challenge for these networks due to their features of open medium, dynamically changing topologies, reliance on cooperative algorithms, absence of centralized monitoring points, and lack of clear lines of defense. Design of an efficient and...
This paper is concerned with fully distributed reputation-based mechanisms that improve security in MANETS. We introduce a number of optimisations to the current reputation schemes used in MANETs such as selective deviation tests and adaptive expiration timer that aim to deal with congestion and quick reputation convergence. We propose to use two different centrality measures for evaluation of the...
To deal with the challenges posed by device capacity and capability, and also the nature of ad hoc networks, service discovery model is needed that can resolve security and privacy issues with simple solutions. The use of complex algorithms and powerful fixed infrastructure is infeasible due to the volatile nature of mobile ad hoc environment and mobile devices. This paper presents a Secure and Lightweight...
In this paper we propose a game theoretic framework for routing in mobile ad hoc networks. A trust oriented auction based packet forwarding model is developed for stimulating cooperation among the nodes avoiding the selfish behavior. Our proposed scheme provides incentive for cooperative behavior of the node and the amount of incentive is decided by the trustworthiness of a node. To find the cost...
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