A dissertation submitted in fulfilment of the requirements for the degree of Master of Science (Computer Science) Department of Computer Science, Faculty of Science and Agriculture, University of Zuluand, 2007. / With the rapid development of new applications, comes the drive to modify the current Internet to accommodate real-time multimedia applications. The current Internet uses a single queue per output port to buffer packets destined for that port. This often causes congestion leading to packet loss and delay. Real-time applications are delay and Joss sensitive. Therefore, there is a need to develop a buffer management system that will effectively accommodate both real-time and non-real-time applications. In an attempt to efficiently allocate and manage output buffers of a router in the fixture Internet, in this research we have developed a buffer management scheme known as Dynamic Threshold Buffer Allocation Scheme (DTBAS). This scheme uses complete sharing with virtual partitioning. Pre-emption (i.e. removal of queued packets) is used to minimise congestion of high priority packets. Dynamic thresholds are used to determine the start and end of pre-emption. To further alleviate the congestion of high priority (real-time) packets, high priority OUT-packets are randomly dropped during the pre-emption period. To add some fairness to the scheme, low priority (non-real-time) packets are assigned a minimum buffer volume. Simulation was conducted to evaluate the performance of the proposed scheme. The scheme was also compared with the Complete Sharing and Complete Partitioning schemes. It was found that DTBAS had the lowest average packet loss rate for real-time applications compared to other schemes. It was also found that DTBAS efficiently utilises its buffer space.

Communications regulatory frameworks are established to achieve affordable pricing, consumer welfare, innovation and competition. A regulatory framework is therefore endowed with regulatory governance measures and regulatory incentives to enable it to achieve these purposes. In applying these measures and incentives, the framework becomes effective, or ineffective, if the framework fails. The purpose of this qualitative exploratory study was to assess the perceptions of the stakeholders on the effectiveness of the types of governance measures and incentives implemented in Namibia because stakeholders are involved in the success or failure. The study of perceptions are important because they offer insight of informed stakeholders of how policies, laws and regulations are implemented for whom those policies, laws and regulations are designed, implemented and meant to impact. Such insights can inform the design of recommendations on how these measures and incentives can be improved to make the regulatory framework more effective, as it has done in this study. One of the main findings of the research was the perceived conflict of interests between the ICT policy role of the Ministry of ICT and its shareholder role over Telecom Namibia, negatively impacting on competition and putting privately owned licensees at a market disadvantage. The conclusion was that this regulatory governance design measure conflicts with the regulatory framework and requires legislative amendment and a re-design of the framework to achieve the regulatory purpose of competition and improve Namibia’s regional and global competitiveness.

A research report submitted to the Faculty of Commerce, Law and Management, University of the Witwatersrand, Johannesburg, in fulfilment of the requirements for the degree of Masters of Management by Dissertation (MM-D). October, 2016 / The role played by a governing authority is crucial to the long term survival and development of its governed unit, irrespective of the size and function of the said unit. In the event that a government fails to protect the interests of its governed, a state of wide-spread dissatisfaction and palpable frustration becomes inevitable. Through the application of an Interpretive Research Paradigm, this study assessed the role of the Nigerian government in one of the country’s most promising industries; The Mobile Telecommunications Industry. The study aimed to expose the predominant role of the Nigerian government in this industry with a focus on the relevant issues of Cybercrime and Mobile Broadband. This research enquiry applied the Qualitative Research Approach. As such, the researcher analyzed relevant policy documents on telecommunications and elicited the expert opinions of key industry players. In all, 18 industry representatives were questioned about the happenings in the Mobile Telecommunications Industry. The interview respondents for this research study included representatives of the Ministry of Communications, individuals within the Nigerian Communications Commission, and Mobile Telecommunications service providers/operators. To further validate the information gathered from these individuals, various industry reports were also examined. After a thorough analysis of the research data gathered from multiple sources, the conclusion drawn by this study was that the Nigerian government has failed to do what is necessary to ensure the long-term growth and development of the country’s Mobile Telecommunications Industry. The study proved that the government has constantly taken a somewhat lackadaisical stance with regard to the implementation of the policies and initiatives governing the industry and has subsequently given no explanations or justifications for its actions, or more appropriately, inactions. Conclusively, this research study recommended that the governing environment of the Nigerian Mobile Telecommunications Industry be restructured to include a government that not only formulates telecoms development strategies and expansion initiatives, but also executes these plans whilst maintaining an unwavering accountability for its actions and decisions. / MT 2017

The aim of this research is to explore the regulation of interconnection in Rwanda by investigating whether the current interconnection regime has ensured fair and reasonable interconnection rates that can enhance efficiency and effective competition. A qualitative research approach was used and the data were collected using semi-structured interviews and documentary analysis. The findings reveal that although RURA adopted a cost-based interconnection approach to ensure a fair and reasonable interconnection rate, its poor implementation resulted in an inefficient level of fixed and mobile interconnection rates. The study found an inconsistent application of the regime by incumbents, lack of sufficient regulatory capacity and lack of clear and comprehensive policy instruments. More recently, RURA is making efforts towards adopting a new regime to address the current interconnection rate issues in Rwanda. This study demonstrates that the current interconnection rate regime requires extensive rethinking about appropriate costing models and regulatory capacity, in order to enhance market efficiency and promote effective competition.

Thesis (M.M. (ICT Policy and Regulation))--University of the Witwatersrand, Faculty of Commerce, Law and Management, Graduate School of Public and Development Management, 2013. / Cannot copy abstract

This qualitative study describes and analyzes the contextual factors that have conditioned the Korean Information Infrastructure (KII) project implemented by the Korean government between 1995 and 2005. The theoretical framework undergirding this study is the political economy of networked mobility, which is given detail by the theory of globalization, state theory (especially, the developmental state theories concerning East Asia), and critical geographies. The theory of globalization aims at situating Korea’s information and technology growth within the universal structure of networked global capitalism, and revealing it as a desperate striving to enlist the local as an active part of the new global network; the developmental state theories that interpret the East Asian “economic miracle” seek to evaluate specific linkages of the state and capital for economic imperatives; and critical geographies allow this study to uncover the hidden layers of the spatial reconfigurations actively implemented by the state and large capital. Employing these three theoretical approaches, this study examines the major contextual factors conditioning the KII project in Korea: the global constraints conditioning its telecom policies (globalization theory), the dense state--capital linkages (developmental state theories), and the bureaucratic desire for control and the shift in capital accumulation to a knowledge-based mode of production (critical geographies). As methods for analysis, the data for this study are gathered from archival documents and also incorporate in-depth informant interviews with key actors from both the public and the private sector who were directly involved in the KII project. This study examines that, although the KII project was no longer implemented by an autocracy, the close relationships between the government and the Chaebols were influential in designing the national IT plans, and civil society’s ability to be involved in or monitor the policymaking processes was limited. The present study concludes that the state plan of a “second-stage catching-up” economy through the KII project has easily overruled voices from below by regarding them as unnecessary noise. This study suggests that policy change in Korea should lead toward reformulating telecom policies along much more socially-interventionist and redistributive lines, and toward decentralizing or democratically controlling the overwhelming power of the Chaebols, Korean conglomerates. / text

A little over 10 years ago the Mexican government privatized Telefonos de Mexico, S.A. (Telmex), the telecommunications monopoly that had dominated the market since 1948 and had become a government-owned company in 1976. This thesis focuses on the company's privatization and on the regulatory framework that resulted, analyzing the achievement of the objectives set with the purpose of liberalizing the market and opening it to competition and foreign investors. / The main issues addressed are the regulatory framework of Mexican telecommunications, the players involved, interconnection of their networks, foreign investment in Mexican telecommunications, licensing of radio frequencies, rate regulation, universal service obligations, and the international scenario in liberalization of trade in telecommunication services and the relating international instruments, insofar as they relate to the Mexican experience.

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Thesis (M.A.)--Ohio University, August, 2006. / Title from PDF t.p. Includes bibliographical references.

Thesis (Ph.D.)--Ohio University, June, 2007. / Title from PDF t.p. Includes bibliographical references.