Dependability and Security on Wireless Self-Organized Networks: Properties, Requirements, Approaches and Future Directions

Dependability and Security on Wireless Self-Organized Networks: Properties, Requirements, Approaches and Future Directions

Michele Nogueira (Universidade Federal do Paraná, Brazil), Aldri Santos (Universidade Federal do Paraná, Brazil), and Guy Pujolle (Sorbonne Universités, France)
Copyright: © 2012 |Pages: 19
DOI: 10.4018/978-1-60960-794-4.ch015
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Abstract

Wireless communication technologies have been improved every day, increasing the dependence of people on distributed systems. Such dependence increases the necessity of guaranteeing dependable and secure services, particularly, for applications related to commercial, financial and medial domains. However, on wireless self-organized network context, providing simultaneously reliability and security is a demanding task due to the network characteristics. This chapter provides an overview of survivability concepts, reviews security threats in wireless self-organized networks (WSONs) and describes existing solutions for survivable service computing on wireless network context. Finally, this chapter presents conclusions and future directions.
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Security Threats

WSONs are susceptible to many threats. Network characteristics, such as dynamic topology, decentralized network architecture, shared wireless medium, low physical security of nodes and multi-hop communication result in different vulnerabilities and make difficult to maintain essential network services (Aad, 2004). The decentralized architecture, for example, requires cooperation among nodes by one-hop or multiple hop connectivity without having guarantees that all nodes will cooperate as expected. The network autonomy, high dynamism of the topology and the lack of access control facilitate the participation of malicious or selfish nodes in network operations. Further, wireless communication is vulnerable to interference and interceptions, and the low physical security of nodes increases their possibilities of being tampered with.

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