Browsing by Author "Wudu, Abraham"

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    Feasibility Study of Smart Antenna Systems for Mobile Communication The Case of Ethiotelecom
    (Addis Ababa University, 2016-02) Wudu, Abraham; Ridwan, Murad (PhD)
    This thesis work describes performance investigation of smart antenna systems and its viability for the deployment in the major 3G networks of Ethiotelecom. The work starts by exploring the performance and the major challenges in the current mobile communication network in Ethiotelecom regarding capacity, coverage and quality of service in connection to the antenna types that are deployed in the Base Stations. This is followed by an outline of how smart antenna systems can be utilized to improve cell coverage, capacity and overall network performance. The performance of adaptive smart antenna system using Constant Modulus Algorithm (CMA) and Least Mean Square (LMS) algorithm is investigated which can enhance the overall mobile communication performance through suppressing the interference. A business case analysis for the conventional antennas and smart antenna based telecom systems is studied in a comparative manner in which the result shows that deploying smart antenna base station in the major 3G networks in Addis Ababa is feasible i.e. a range increase, capacity increase, number of Base Station reduction, Capital Expenditure (CAPEX) and Operational Expenditures (OPEX) reduction will be gained by recuperating the capital spent on infrastructure with the deployment of smart antennas. Keywords: Smart antenna systems, Base Stations, Interference, 3G networks, CMA, LMS, CAPEX, OPEX