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38 articles for “Primary User”
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Research ArticleOpen accessIn the abstractSelf-Adjustment Time Quantum in Round Robin Algorithm Depending on Burst Time of the Now Running ProcessesRami J. MatarnehProblem statement: The performance and efficiency of multitasking operating systems mainly depends on the used CPU scheduling algorithm where the CPU is one of the primary computer resources and as round robin scheduling algorithm is considered most widely used scheduling algorithms in this research a new proposed variant of this algorithm presented, discussed in detail, tested and verified. Approach: The … …American Journal of Applied Sciences, Vol. 6, Issue 10 · 31 Oct 2009 · 8,934 accessesView PDFCite
Research ArticleOpen accessIn the abstractAn Analysis of Urban Land Development Using Multi-Criteria Decision Model and Geographical Information System (A Case Study of Babolsar City)Sedigheh Lotfi, Kiomarth Habibi, Mohammad Javad KoohsariProblem Statement: The unplanned physical expansion of cities has been one of the most important problems of urban management in developing countries. Iran, like other developing world has experienced a high level of urbanization growth which transformed the physical fabric of urban areas. North of Iran is one of most rapid growing region of the country where the moderate climate … …American Journal of Environmental Sciences, Vol. 5, Issue 1 · 28 Feb 2009 · 8,708 accessesView PDFCite
Research ArticleOpen accessIn the abstractMicrocontroller Based Power SupplyTanvir Singh Mundra, Er. Satwinder Singh Sachdeva, K.S. KahlonThese days, majority of electronic devices work on DC power source, so there was a requirement of a reliable and customized power supply. Generally, the requirements are not too varied, but still they require every time a new hardware designing. The idea presented here is to build a microcontroller controlled power supply[1] that is flexible enough to meet different customer … …Journal of Computer Science, Vol. 2, Issue 8 · 31 Aug 2006 · 6,781 accessesView PDFCite
Research ArticleOpen accessIn the abstractInvestigating Text Input Methods for Mobile PhonesBarry O, Kevin Curran, Derek WoodsHuman Computer Interaction is a primary factor in the success or failure of any device but if an objective view is taken of the current mobile phone market you would be forgiven for thinking usability was secondary to aesthetics. Many phone manufacturers modify the design of phones to be different than the competition and to target fashion trends, usually at … …Journal of Computer Science, Vol. 1, Issue 2 · 30 Jun 2005 · 7,958 accessesView PDFCite
Review ArticleOpen accessIn the abstractShort Text Mining: State of the Art and Research OpportunitiesMohamed Grida, Hasnaa Soliman, Mohamed HassanWith the growing number of connected online users producing a tremendous amount of unstructured short-texts daily, understanding and mining these data becomes very useful for individuals, governments and companies for identifying the public users’ attitudes towards different entities, such as products, services, events, places, organizations and topics. However, analyzing these short-texts using traditional methods becomes a significant challenge due to … …Journal of Computer Science, Vol. 15, Issue 10 · 13 Oct 2019 · 8,091 accessesView PDFCite
Review ArticleOpen accessIn the abstractA Review on Cognitive Radio for Next Generation Cellular Network and its ChallengesNandhakumar Pandi, Arun KumarCognitive Radio (CR) is considered an intelligent technology. It improves the utilization of the radio spectrum. The increasing number of new devices has resulted in growing congestion of the ISM bands. FCC issued an order only permitting unlicensed users (secondary users) to operate in white space without interfering with licensed users (primary users). Cognitive Radio Networks (CRNs) provides a solution … …American Journal of Engineering and Applied Sciences, Vol. 10, Issue 2 · 4 Apr 2017 · 8,986 accessesView PDFCite
Research ArticleOpen accessIn the abstractDEPENDABILITY ATTRIBUTES FOR INCREASED SECURITY IN COMPONENT-BASED SOFTWARE DEVELOPMENTHasan Kahtan, Nordin Abu Bakar, Rosmawati NordinExisting software applications become increasingly distributed as their continuity and lifetimes are lengthened; consequently, the users’ dependence on these applications is increased. The security of these applications has become a primary concern in their design, construction and evolution. Thus, these applications give rise to major concerns on the capability of the current development approach to develop secure systems. Component-Based Software … …Journal of Computer Science, Vol. 10, Issue 7 · 17 Jun 2014 · 7,797 accessesView PDFCite
Research ArticleOpen accessIn the abstractHIERARCHICAL ACCESS CONTROL IN DYNAMIC PEER GROUPS USING SYMMETRIC POLYNOMIAL AND TREE BASED GROUP ELLIPTIC CURVE DIFFIE HELLMAN SCHEMEKumar Krishnan, Sumathy Vembu, Nafeesa Begum JeddyHierarchical Access Control in group communication is an active area of research which is difficult to achieve it. Its primary objective is to allow users of a higher authority group to access information or resource held by lower group users and preventing the lower group users to access information held by higher class users. Large collection of collaborative applications in … …Journal of Computer Science, Vol. 10, Issue 9 · 15 Apr 2014 · 6,999 accessesView PDFCite