Journal Articles

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Browsing Journal Articles by Author "Anatory, Justinian"

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    A Price Based Spectrum Sharing Scheme in Wireless Cellular Networks
    (IIST, 2013-11-08) Kalolo, Sadath; Sam, Anael; Machuve, Dina; Anatory, Justinian
    Radio frequency spectrum scarcity has become a high priority research area over the past few years. The huge increase of network subscribers with multimedia applications coupled with underutilization of radio frequency spectrum motivates the search for other measures to address the scarcity of radio frequency spectrum. This work investigates on a price based spectrum sharing scheme for connection-oriented traffic in wireless cellular networks as a solution to address the scarcity of radio frequency spectrum. Dynamic pricing approach is applied with traffic overflows into neighbor networks. Performance evaluations of the scheme at steady state using MATLAB simulations reveal significant gains to the quality of service. Application of the scheme to highly loaded network traffic improves both network revenue and traffic channel utilizations.
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    Consumer Preferences for Mobile Carriers in Tanzania: A Case of Group, Family, Age and Gender
    (International Journal of Computer Applications, 2015-04-16) Anatory, Justinian
    This paper investigates age, family, group and gender influence consumer preference for selection of the mobile carrier. About seventy seven students from high learning institutions in Dodoma Municipality participated in responding to prepared questionnaires. The results indicate that family members and friends are contributing in influencing consumer preferences to select mobile services provider, although at smaller margins. This paper revealed also that there is no direct relationship between selection of a mobile carrier and age or gender.
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    Digital Terrestrial Broadcasting Technologies and Implementation Status
    (World Academy of Science, Engineering and Technology, 2013-03-25) Mvungi, Nerey H.; Anatory, Justinian; Simba, Fatuma
    Digital broadcasting has been an area of active research, development, innovation and business models development in recent years. This paper presents a survey on the characteristics of the digital terrestrial television broadcasting (DTTB) standards, and implementation status of DTTB worldwide showing the standards adopted. It is clear that only the developed countries and some in the developing ones shall be able to beat the ITU set analogue to digital broadcasting migration deadline because of the challenges that these countries faces in digitizing their terrestrial broadcasting. The challenges to keep on track the DTTB migration plan are also discussed in this paper. They include financial, technology gap, policies alignment with DTTB technology, etc. The reported performance comparisons for the different standards are also presented. The interesting part is that the results for many comparative studies depends to a large extent on the objective behind such studies, hence counter claims are common.