Browsing by Author "Seifu, Bethelhem"

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    LTE Radio Network Planning: Modeling Approaches for The Case of Addis Ababa.
    (Addis Ababa University, 2012-07) Seifu, Bethelhem; Hailemariam, Dereje (PhD)
    This particular thesis paper is based on the newly advanced cellular technology called Long Term Evolution (LTE). It is intended to give a good understanding of Radio Network planning of LTE and perform a case study in Addis Ababa as to improve the existing network deployment. The LTE Radio network planning involves coverage estimation, capacity evaluation and frequency planning. In this thesis the coverage estimation is done with consideration of the real environment information at its nominal stage to obtain better estimations. The propagation modeling is done using COST 231 W/I model with inclusion of additional parameters obtained from the real environment/terrain model which improves the coverage estimation. The LTE planning was performed as case study in selected area of Addis Ababa with 53 km2 area around the National Hotel. The existing GSM network in the area entertains more than 40 GSM basestations with 1800 MHz bandwidth where one GSM basestation is planned to cover only 0.86 Km2. With proper network planning or optimization of the existing GSM network or even implementing of newly developed cellular technologies such as LTE surely improve the coverage area. Thus, this thesis commence LTE implementation in the area with initial radio planning to properly reduce the number of basestations to less than 10 eNodeBs (eNBs) and at the same time improve the capacity. Key Words: LTE Radio Network Planning; Coverage Planning; Capacity Planning