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n

TAUFIQ

2202 205 002

Supervised By :

Dr.Ir. Ahmad Affandi, D.EA

Supeno Mardi SN, ST., MT.

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Lee Method : Point To Point. Ray tracing GTD/UTD as method

for compute the interaction of anantenna with a structure.

Develop access for mobile

communication services to needsBTS location of coverage area.

T4t

Antena

Base Transceiver Station (BTS)

Jumlah Pemantul = 4

Mobile Station (MS)

Jumlah Pemantul >> 4

1

2

3

4

T1 T2 T3

Sinyal yang

diterima

a0

a0

Waktu (mikrodetik)

tKuatSinyal(dB)

Figure 1

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Design Software with Simulationfor Metode Lee In Modeling

Propagation Ray-Tracing GTD/UTDof BTS Coverage Area Using DelphiProgramming

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Propagation ModelOkumura

Hatta

Okumura Hatta

COST 231 Hatta

Lee

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Example

Outdoor Propagation Model

Lee

dBm

or

r

oPrP

log

rP Level Sinyal Receiver MS is Distance r Km (dBm)

oP Levelsinyal Median Receiver BTS (dBm)

path-loss slope(dB dec-1)

r Distance MS With BTS (Km)

or Reference Distance MS With BTS (Km)

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Example design communication via BTS to

MS by Lee Method

Figure 2

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Using formula for figure 2

dBmLr

rPP

d

o

or

log

2/1

21

112

rr

hv p

v = Difrraction (Ld) adalah

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DESIGN SYSTEM

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Propagation Model With Ray-Tracing

Free Space Propagation

Diffraction

Reflection

0

0

01

Jkse

s

EE

)( 4321 DDRDDD

'

2

'cot

22

4/

1

kLaFnkn

eD

J

Figure 3

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Modeling & Propagation Ray-Tracing GTD/UTD

Figure 4

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Modeling Ray-tracing

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Item of Measurement Implementation

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Level signal of receiver (dBm)

With Non Building With BuildingFigure 5 Figure 6

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Grafik Perbedaan Intensitas Kuat Medan

101.45

91.31

81.16

71.02

60.87

50.72

40.58

30.43

20.29

10.14

80.39

70.59

60.79

50.99

41.19

31.39

21.59

11.79

1.990.01

0

20

40

60

80

100

120

1 2 3 4 5 6 7 8 9 10

Degradasi

dBm Tanpa Penghalang

Dengan Pengahalang

Representation of Intensity Signal

Figure 7

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SIMULATION WITH RAY-TRACING GTD/UTD

Figure 7 Figure 8

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Results Process Data Input Horizontal and Vertical angels

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Results Process Data Input Horizontal and Vertical angels (2)

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Results Process Data Field Intensity coverage area

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Results Process Data Diffraction

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Figure 9

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Figure 10

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FIGURE : BTS LOCATION

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Figure 12

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In making of propagation wave required by the existence of profile terrain[of] an area which can deputize in detail real circumstance terrain, havingdimension as accurately as so that able to present an area as according toexperienced pattern in fact

Characteristic of Profile terrain influence the direction of propagation wavegoing to perception dot of because happened by the deflection process ofbarrier media having difference instruct as according to specification of

barrier. Barrier characteristic [of] exist in an area assumed a effect ofsingle barrier type and double barrier

Level Signal sent get the damping as according to path propagation ofpursuant to function apart and process the deflection to existing barriertype

Calculation of field intensity at one particular acceptance area differ, that isarea, bound area, damping and apart

Reference

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[1] Arie Michaeli, A Hybrid Asymtotic Solution for The Scattering by Apair ofparallel Perfectly Conducting Wedges, IEEE Trasaction On Antennas andPropagation, 5 Mei 1990

[2] Calhoun, George. 1988. Digital Cellular Radio. U.S.A. Artech House. Inc.[3] Kiiner, Thomas. 1991 Concepts and Results for 3D Digital Terrain-Based Wave

Propagation Model : An Overview. IEEE Journal Vol 11 No 7.[4] Pacheco, Xavier & Steve Teixeira. 1996. Delphi Develpers Guide. Borland Press.

[5] Lee, William C.Y. 1982. Mobile Communication Engineering. McGraw Hill Book. UK.[6] Lee, William C.Y. 1995. Mobile Cellular Telecommunication Analog and Digital System.

Singapore. McGraw Hill Book.

[7] Lee, William C.Y. 1993. Mobile Communication Design Fundamentals. John Wiley & Sons

Inc. Canada.[8] Rappaport, Thedore S. 1996. Wireless Communication Principle & Practice. Prentice hallPTR. Upper Sadle River New Jersey.

[9] Kouyoumjian, Robert G. November 1974. A Uniform Geometrical Theory of Diffraction foran Edge in a Perfectly Conducting Surface. Proceedings of the IEEE. 62. No 62.

[10] Lebhaerz, Manfred. 1992. A Versatile Wave Propagation Model for the UHF/VHFConsidering 3-D Terrain. IEEE Journal Vol 40 No 10.

[11] Lumanto, Rudi, Bambang H.T. 1995. Study of Wave Propagation Model in Urban Areas.

Journal BPP Teknologi Dir TEI.[12] McNamara D.A, C.W.I. Pistorius, J.A.G. Malherbe. 1990. Introduction to The

UniformGeometrical Theory of Diffraction. Artech House. London.

Reference

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SAY THANK YOU FOR

SUPERVISOR

- Dr.Ir. Ahmad Affandi, D.EA- Supeno Mardi SN, ST., MT.

LECTURER OF ELECTRICAL ENG. ITSSTAF & CREW LAB B 201

BPPS SCHOLARSHIP