Challenges of Misbehavior Detection in Industrial Wireless Networks

In recent years, wireless technologies are increasingly adopted in many application domains that were either unconnected before or exclusively used cable networks. This paradigm shift towards - often ad-hoc - wireless communication has led to significant benefits in terms of flexibility and mobility. Alongside with these benefits, however, arise new attack vectors, which cannot be mitigated by traditional security measures. Hence, mechanisms that are orthogonal to cryptographic security techniques are necessary in order to detect adversaries. In traditional networks, such mechanisms are subsumed under the term "intrusion detection system" and many proposals have been implemented for different application domains. More recently, the term "misbehavior detection" has been coined to encompass detection mechanisms especially for attacks in wireless networks. In this paper, we use industrial wireless networks as an exemplary application domain to discuss new directions and future challenges in detecting insider attacks. To that end, we review existing work on intrusion detection in mobile ad-hoc networks. We focus on physical-layer-based detection mechanisms as these are a particularly interesting research direction that had not been reasonable before widespread use of wireless technology.Peer Reviewe

Internet of things: where to be is to trust

[EN] Networks' creation is getting more and more required, anytime, anywhere. Devices that can participate on these networks can be quite different among them. Sensors, mobiles, home appliances, or other type of devices will have to collaborate to increase and improve the services provided to clients. In the same way, network configuration, security mechanisms establishment, and optimal performance control must be done by them. Some of these devices could have limited resources to work, sometimes even resources restriction not existing, they must work to optimize network traffic. In this article, we center our researching on spontaneous networks. We propose a secure spontaneous ad-hoc network, based on direct peer-to-peer interaction and communities' creation to grant a quick, easy, and secure access to users to surf the Web. Each device will have an identity in the network. Each community will also have an identity and will act as a unity on a world based on Internet connection. Security will be established in the moment they access to the network through the use of the trust chain generated by nodes. Trust is modified by each node on the basis of nodes behaviorLacuesta, R.; Palacios-Navarro, G.; Cetina Englada, C.; Peñalver Herrero, ML.; Lloret, J. (2012). Internet of things: where to be is to trust. EURASIP Journal on Wireless Communications and Networking. (203):1-16. doi:10.1186/1687-1499-2012-203S116203Lipnack J, Stamps J: Virtual Teams: Researching Across Space, Time, and Organizations with Technology. New York: John Wiley and Sons; 1997.Ahuja MK, Carley KN: Network structure in virtual organizations, organization science, Vol. 10, No. 6, Special Issue: Communication Processes for Virtual Organizations, November–December. 1999, 741-757.Mowshowitz A: Virtual organization. Commun ACM 1997, 40(9):30-37. 10.1145/260750.260759Preuß S: CH Cap, Overview of spontaneous networking-evolving concepts and technologies, in Rostocker Informatik-Berichte. 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Comput Secur 2012, 31(1):4-25. 10.1016/j.cose.2011.11.006Stajano F, Anderson R: The resurrecting duckling security issues for ad-hoc wireless networks. Security Protocols, 7th International Workshop Proceedings, Lecture notes in Computer Science, LNCS 1296 1999, 172-194.Balfanz D, Smetters DK, Stewart P, ChiWong H: Talking to strangers: authentication in ad-hoc wireless networks, in Symposium on Network and Distributed Systems Security (NDSS’02). San Diego, CA; 2002.Capkun S, Hubaux JP, Buttyán L: Mobility helps security in ad-hoc networks. In Proceedings of the 4th ACM international symposium on Mobile ad hoc networking & computing. MD, USA: Annapolis; 2003:46-56.Metzger MJ: Privacy, trust, and disclosure: exploring barriers to electronic commerce. J Comput-Mediat Commun 2004, 9(4). http://jcmc.indiana.edu/vol9/issue4/metzger.html 2004, 9(4)

The relationship between a managerial focus on inventory reduction and value added

This paper examines the relationship between a managerial focus on improvements in efficiency and value added. We analyze financial information on 915 non-service US firms with total assets over US $100 million over the 25 year period from 1980 to 2004. Our results show a very strong correlation between the increase in value added and the increase in inventory speed across all manufacturing industries. The results strongly support the operations management literature which claims a managerial focus on efficiency, in particular increases to the speed of operations, will result in significant value creation for firms. The results also imply that the concept of competition based on operational speed has not been transferred across all firms and the potential for improvement still exits in most industries

Measuring the Effects of Improvements in Operations Management

This paper examines the relationship between a managerial focus on reducing inventory and improvements in value added. We analyze financial information on large non-service US based firms over the 25 year period from 1980 to 2004. Our results show a very strong correlation between the increase in value added and the decrease in days of inventory speed across all manufacturing industries. The results strongly support the operations management literature which claims a managerial focus on efficiency, in particular increasing the speed of operations, will result in significant value creation for firms. The results also imply that the concept of competition based on operational speed has not been transferred across all firms and the potential for improvement still exits in most industries

A systematic review and meta-analysis of prevalence studies of sporadic inclusion body myositis

Background: Sporadic Inclusion Body Myositis (sIBM) is a rare and slowly progressive debilitating muscle disease with symptoms generally developing≥50 years of age. Objective: To conduct a systematic review and meta-analysis of the prevalence of sIBM literature, including a methodological quality assessment of the selected papers. Methods: A systematic search of Medline, Embase, Cochrane Database of Systematic Reviews and major Myositis and Neurological conferences was conducted. Articles reporting prevalence and published in English up to March 2017 were assessed for methodology quality using the Loney quality assessment, Downs & Black score, and the Methodological Evaluation of Observational Research checklists. Meta-analyses using random effects were completed on both general population and≥50 years prevalence estimates. Results: 315 articles were retrieved and data were extracted from 10 relevant studies. One study was subsequently excluded due to methodological issues. The meta-prevalence estimate from 9 papers was 24.8/1,000,000 (95% CI: 20.0–29.6). The methodological quality results were consistent across assessment tools with four articles scoring 4 or 5 out of 8 in the Loney assessment. The meta-prevalence of these four articles was 45.6/ 1,000,000 (95% CI: 35.9–55.2). Conclusion: There was high variability in reported sIBM prevalence estimates and the quality of the studies conducted. Existing evidence suggests an increase of prevalence estimates over time, which may be explained by growing disease awareness, improvements in diagnostic criteria and study methodologies. Further high quality studies are needed to understand if prevalence varies across geographies or ethnicities