Abstract:

Location-based services are quickly becoming immensely popular. In addition to services based on users' current location, many potential services rely on users' location history, or their spatial-temporal provenance. Malicious users may lie about their spatial-temporal provenance without a carefully designed security system for users to prove their past locations. In this paper, we present the Spatial-Temporal provenance Assurance with Mutual Proofs (STAMP) scheme. STAMP is designed for ad-hoc mobile users generating location proofs for each other in a distributed setting. However, it can easily accommodate trusted mobile users and wireless access points. STAMP ensures the integrity and non-transferability of the location proofs and protects users' privacy. A semitrusted Certification Authority is used to distribute cryptographic keys as well as guard users against collusion by a light-weight entropy-based trust evaluation approach. Our prototype implementation on the Android platform shows that STAMP is low-cost in terms of computational and storage resources. Extensive simulation experiments show that our entropy-based trust model is able to achieve high collusion detection accuracy.

Keywords:

Location Proof, Mobile Applications,STAMP,Spatial Temporal Provenance

Abstract:

Detecting node failures in mobile wireless networks is very challenging because the network topology can be highly dynamic, the network may not be always connected, and the resources are limited. In this paper, we take a probabilistic approach and propose two node failure detection schemes that systematically combine localized monitoring, location estimation and node collaboration. Extensive simulation results in both connected and disconnected networks demonstrate that our schemes achieve high failure detection rates (close to an upper bound) and low false positive rates, and incur low communication overhead. Compared to approaches that use centralized monitoring, our approach has up to 80% lower communication overhead, and only slightly lower detection rates and slightly higher false positive rates. In addition, our approach has the advantage that it is applicable to both connected and disconnected networks while centralized monitoring is only applicable to connected networks.

Keywords:

Mobile Wireless Networks,NodeFailure,Localize Monitoring and Estimation

Abstract:

Security and privacy issues have developed critically important with the fast expansion of multi-agent systems. Most network submissions such as pervasive computing, grid computing and P2P networks can be viewed as multi-agent systems which are open, anonymous and dynamic in nature. Such characteristics of multi-agent systems introduce vulnerabilities and threats to providing secured announcement. Industrial systems always prefer to reduce their operational expenses. To support such reductions, they need solutions that are capable of providing stability, fault tolerance, and flexibility. One such solution for industrial systems is cyber physical system (CPS) integration with the Internet of Things (IoT) utilizing cloud computing services. These CPSs can be well-thought-out as smart industrial systems, with their most prevalent applications in smart transportation, smart grids, smart medical and eHealthcare systems, and many more. These manufacturing CPSs mostly utilize supervisory control and data acquisition (SCADA) systems to control and monitor their critical infrastructure (CI). For example, WebSCADA is asubmission used for smart medical technologies, making improved patient monitoring and more timely decisions possible. The concentration of the study obtainable in this paper is to highpoint the security challenges that the industrial SCADA systems face in an IoT-cloud environment. Conventional SCADA organizations are already lacking in proper security measures; however, with the integration of complex new constructions for the future Internet based on the concepts of IoT, cloud computing, mobile wireless sensor networks, and so on, there are large issues at stakes in the security and deployment of these classical systems. Therefore, the incorporation of these future Internet perceptions needs more research effort.

Keywords:

Cyber Physical System, Industrial Control System, Internet of Things (IoT), Supervisory Control and Data Acquisition System, SOA.

Abstract:

This research paper aims at providing an overview of cloud based business process management systems and its advantages and challenges. It also describes its vitality to the success of an effective IT and Business Environment through inherent prospective of scalability and expenditure reduction. Business Process Management (BPM) on cloud paradigm makes BPM affordable to organizations at minimal cost, thus by allowing Businesses to enhance and develop a customer value propositions. This paper includes fundamentals of BPM, BPM in Cloud Computing, Elements of BPM, Architecture of BPM & its benefits along with its challenges.

Keywords:

Business Processing Management, Cloud Computing,Cloud Services

Abstract:

A mobile ad-hoc network is a collection of mobile nodes connected together over a wireless medium without any fixed infrastructure. Unique characteristics of mobile ad-hoc networks such as open peer-to peer network architecture, shared wireless medium and highly dynamic topology, pose various challenges to the security design. Mobile ad-hoc networks lack central administration or control, making them very vulnerable to attacks or disruption by faulty nodes in the absence of any security mechanisms. Also, the wireless channel in a mobile ad-hoc network is accessible to both legitimate network users and malicious attackers. So, the task of finding good solutions for these challenges plays a critical role in achieving the eventual success of mobile ad-hoc networks. Here we propose an “unobtrusive monitoring” technique, that uses readily available information from different layers of the protocol stack to detect “malicious packet-dropping”, where a faulty node silently drops packets destined for some other node. A key source of information for this technique is the messages used by the special ad-hoc routing protocols. This technique can be deployed on any single node in the network without relying on the cooperation of other nodes, easing its deployment.

Keywords:

Mobile Ad Hoc Network, Malicious Packet Droppers, Packet Routing, Security

Abstract:

Routing in a MANET is complex because it has to react efficiently to unfavorable conditions and support traditional IP services. In addition, Quality of Service (QoS) provision is required to support the rapid growth of video in mobile traffic. As a consequence, tremendous efforts have been devoted to the design of QoS routing in MANETs, leading to the emergence of a number of QoS support techniques. However, the application independent nature of QoS routing protocols results in the absence of a one-for-all solution for MANETs. Meanwhile, the relative importance of QoS metrics in real applications is not considered in many studies. Specifically, we begin by developing a QoS architecture for cross-layer information sharing, defining explicitly what information must be shared among the layers to provide support for QoS in terms of bandwidth and packet delivery rate.

Keywords:

Mobile Ad Hoc Network, Quality of service, Packet Routing, Bandwidth, Throughputs