Latest Articles - Volume 10 No. 4

  • Quality of Service in Cognitive Radio Network: Issues and Challenges

    Nisar A Lala1, G M Mir1, Altaf A Balkhi1 and R A Simnani2

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    Cognitive radio (CR) is a novel technology to resolve the issue of under-utilization of wireless spectrum. There exists number of challenges and issues in designing and implementation of the cognitive radio. Extending quality-of-service (QoS) enabled applications to CR network is even more difficult task due to non-availability of the dedicated allocation of idle spectrum. CR imposes peculiar and unique challenges to guarantee quality of service of diverse flows in contrast to other wireless networks. This paper identifies the issues and challenges of QoS provisioning in cognitive radio networks.

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  • Flexible Channel Allocation for Better Traffic Management in Microcellular Mobile Communication System using Fuzzy logic

    G. M. Mir1, N. A. Lala1 and A. A. Balkhi2

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    Various channels have high traffic density during peak hours the problems are further exacerbated by the traffic overloading in downtown areas at peak hours. The reliable and efficient communication demands unnoticed handoff to the user without deteriorating the signal strength. Current cellular system exhibits a varying traffic conditions depending upon the corresponding variations in population which is low in rural areas and high in downtown areas. The traffic density becomes even higher at peak hours and low at night hours. The acceptable service quality demands optimum use of frequency spectrum for obtaining maximum traffic throughput. The efficient allocation of channels on need basis can be one of the solutions for efficient traffic management during peak hours.

    In Flexible Channel Allocation scheme (FlCA), the available channels are divided in fixed and flexible set channels. Fixed set channels are normally assigned to all the cells and the number of channels is decided by the approximate calculated load of particular cell that typically suffices the traffic load of cell. The flexible channels are assigned to those cells whose channels are inadequate under increased traffic load conditions. These channels are assigned in accordance with demand of increased traffic loads. Fuzzy logic approach being flexible is explored for assigning these flexible channels for enhanced QoS.

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  • Data Mining using Neural Networks

    MAZIN OMAR KHAIRO

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    While the current IT plethora is replicating enormous data and it need to have tremendous
    processing power by the servers to maintain this valuable data and storages. Therefore in order
    to provide ease to data storage Erasure coding exhibits much success in the area of data mining
    as it can reduce the space and bandwidth overheads of redundancy in fault-tolerance delivery
    systems, so the exploration of erasure coding in concurrency with the metadata will be appreciable;
    Research also on the other side of the coin shows as few have analyzed the understanding of
    consistent hashing too will proved productive for certain related issues and also the neural
    networks can be used for maintaining and exploring new data sciences in order to provide
    encouraging frameworks in managing infinite volumes of data we have at our disposal. In this
    work, we prove the visualization of simulated annealing in order to render solution at global
    maxima and provide provision of improvements to the specified framework or model. We also
    analyzed and state the disconfirmation about the fact that write-back caches and neural networks
    are never incompatible

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  • Intrusion Detection and Prevention System using ACL

    A. HYILS SHARON MAGDALENE

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    It is widely recognized that the threat to enterprises from insider activities is increasing and
    that significant costs are being incurred. The multi-faceted dimensions of insider threat and
    compromising actions have resulted in a diverse experience and understanding of what insider
    threats are and how to detect or prevent them. The purpose of this research is to investigate the
    potential for near real-time detection of insider threat activities within a large enterprise environment
    using monitoring tools centred on the information infrastructure. As inside threat activities are not
    confined solely to cyber-based threats, the research will explore the potential for harnessing a
    variety of threat indicators buried in a different enterprise operations connected or interfacing with
    the information infrastructure, while enabling human analysts to make informed decisions efficiently
    and effectively.

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  • History & Future of Design Education: Importance of Design Education learning in India

    JUNEESH K KURIACHAN

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    This article recounts research-in-progress which attempts to account for a paradigm
    shift in Indian design education. The research also explores features that need to be rooted and
    nurtured in the foundation year of design education to be suitable for the realities of life in 21st century
    India. This foundation year has had diverse titles including “Design Fundamentals” or “Basic Design”.
    The foundation year began at the Bauhaus and evolved after 1945 at the Hochschule für Gestaltung,
    Ulm and the Academy of Art and Design Basel (HGK Basel). In its emergent period design was
    concentrated on discrete products including industrial goods, textiles, ceramics, architecture and
    graphic design. Today, however, to be pertinent to concurrent society, designers need to work on
    convoluted issues that are interdisciplinary and much comprehensive in scope. 21st century design
    education needs to be able to apply design and develop strategies to solve actual issues and not
    just look at “good form”. There is also a visible shift from client-driven projects towards a more
    reflective “issue-based” design education that strives for more socially inclusive, locally/glocally/
    globally relevant solutions: a move from “human-centric design” to “life-centric design”. The research
    to date incorporate an overview of the history of design education in India from its European origins
    and a literature scrutiny of both formal (books, papers, and reports) and informal sources (blogs and
    emails) to justify and reinforce the argument for change. Identification of central issues to contemporary
    design education is based in-depth interviews and emphasize group discussions. The interviews
    and discussions were with design educators and professional designers who interact with design
    students as mentors or share a common con-cern for design education. Deliberations on design
    and insights into future directions were congregated from confer-ence and seminar recordings. The
    complications of the Indian people, both nationally and locally, within the mesh of cultural diversity
    with eco-nomic discrepancy-ncluding health, transportation, housing, agricultural support, safe
    water provision, to mention some of the many sectors—are areas which offer potential for the
    designer to make a contribution in finding panacea to the wide range of problems facing India. It is
    important for designers to comprehend the complexity of issues at stake as well as being aware of
    “intangibles” like values, social responsibilities, empa-thy, humility, and local/global relevance. When
    design education includes political, social, economic and eco-logical discourses in a collaborative,
    inter/multidisciplinary way perhaps then design can participate actively in nation building.

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