41,718 research outputs found

    Distance Cautious IP - A Systematic Approach in VANETS

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    VANET is a decentralized network that allows the vehicles to communicate with each other for providingsafety warning, traffic management and driver assistance systems. Vehicular IP in Wireless Access in Vehicular Environments (VIP-WAVE)has characterized the IP configuration for extended andnon-extended IP services, and amobilitymanagement scheme supportedby Proxy Mobile IPv6 over WAVE.As the vehicular networks are formed even in remote areas with inadequate power source, the units have power constraints which are overcome by power control in the proposed system .The objective of the paper is to improve the quality of the network by providing internet accesswith transmit power control along which the distance between the RSU and on-board vehicular units(OBU)is determined i.e., power consumption is reduced when at least distance. Hence the RSU provides Distance Cautious Internet Protocol (DCIP) to the OBU for internet access.This paper analyses the WAVE standard and its support of IP based applications, and proposesDistance Cautious Internet Protocol in WAVE(DCIP-WAVE)

    Elastic Business Process Management: State of the Art and Open Challenges for BPM in the Cloud

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    With the advent of cloud computing, organizations are nowadays able to react rapidly to changing demands for computational resources. Not only individual applications can be hosted on virtual cloud infrastructures, but also complete business processes. This allows the realization of so-called elastic processes, i.e., processes which are carried out using elastic cloud resources. Despite the manifold benefits of elastic processes, there is still a lack of solutions supporting them. In this paper, we identify the state of the art of elastic Business Process Management with a focus on infrastructural challenges. We conceptualize an architecture for an elastic Business Process Management System and discuss existing work on scheduling, resource allocation, monitoring, decentralized coordination, and state management for elastic processes. Furthermore, we present two representative elastic Business Process Management Systems which are intended to counter these challenges. Based on our findings, we identify open issues and outline possible research directions for the realization of elastic processes and elastic Business Process Management.Comment: Please cite as: S. Schulte, C. Janiesch, S. Venugopal, I. Weber, and P. Hoenisch (2015). Elastic Business Process Management: State of the Art and Open Challenges for BPM in the Cloud. Future Generation Computer Systems, Volume NN, Number N, NN-NN., http://dx.doi.org/10.1016/j.future.2014.09.00

    Mandate-driven networking eco-system : a paradigm shift in end-to-end communications

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    The wireless industry is driven by key stakeholders that follow a holistic approach of "one-system-fits-all" that leads to moving network functionality of meeting stringent End-to-End (E2E) communication requirements towards the core and cloud infrastructures. This trend is limiting smaller and new players for bringing in new and novel solutions. For meeting these E2E requirements, tenants and end-users need to be active players for bringing their needs and innovations. Driving E2E communication not only in terms of quality of service (QoS) but also overall carbon footprint and spectrum efficiency from one specific community may lead to undesirable simplifications and a higher level of abstraction of other network segments may lead to sub-optimal operations. Based on this, the paper presents a paradigm shift that will enlarge the role of wireless innovation at academia, Small and Medium-sized Enterprises (SME)'s, industries and start-ups while taking into account decentralized mandate-driven intelligence in E2E communications
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