optimum design mod2
DESCRIPTION
Optimum Design Mod2TRANSCRIPT
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Supervision By:AST. Alsadig Jamaleldeen
Einas Ibrahim Khalil AlMutwakil Hassan BashierHani Hassan Ali
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The UMTS Network planning is a concepts used to do coverage and capacity study for specific area.
Network Design should be optimum.
planners should have ability of radio propagation prediction.
Overview Overview
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Problems Facing UMTS Network Design:
Environmental constraints. Planning future. Uncertainty traffic growth and service. Cost.
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Case studyCase study Geographically located in the north-east of Khartoum.
The estimated total area is 5060 Km²(selected 43Km²)
characteristics of the selected area:
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Radio Network Planning (RNP)
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Coverage Plan:to identify the cell coverage (Radius)
then the required number of Node
Bs (RBSs).
Capacity Plan:to grantee enough resources for the
available users.
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General RNP tool requirements: -Importing sites.-Editing sites and Cells.-Simulating Link Performance.-Analyzing the results.-Reporting.-Interworking with other Tools.
Atoll:Atoll is a Windows based radio network planning (RNP) tool supporting wireless telecom operators during the whole network lifetime.
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Design Steps:- 1.Calculation:PL= Node B Transmission Power
+ Node B Antenna Gain - Cable Loss - Penetration Loss - Body Loss + UE Antenna Gain (dB)+SHO Gain –SHO Gain -Interference Margin -UE Reception Sensitivity PL= 36+18-3-15-3+0+3-3-5-5-(-104) = 127 dB
α= (PL-61-20 log f)/20 =2.9675
R=10α
R =0.79km=800m
Area=3/2 √ 3 R² =2.2 Km²
Number of Sites = 43/2.2=19.54= 20 Sites.
2.
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Software Application
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Cases:-1.Reorienting antenna:
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2. Lock site(Coverage of future population growth area)
Before After
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Tuti Island coverage(Increasing antenna Height)
Aldyar(High capacity and quality)
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Final Design:-