Electrical Engineering Question

Task Assignment: Satellite Communication System Design & Simulation

You are required to design and simulate a complete satellite communication system operating in a geostationary orbit (GEO) using MATLAB. The system must be tailored for data communication within the Sultanate of Oman, with the receiver located in Muscat.

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### 1. System Design

Design a full satellite communication link that includes:

– Ground Station (Transmitter & Receiver)

– Geostationary Satellite (GEO)

– Uplink and Downlink paths

The system must operate within the S-Band (23 GHz). Clearly define:

– Uplink frequency

– Downlink frequency

– Orbital position of the satellite

– Elevation angle relative to Muscat

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### 2. Channel Modeling (Losses & Impairments)

You must model a realistic lossy communication channel by including:

– Free Space Path Loss (FSPL)

– Atmospheric Attenuation (especially sandstorms and rain in Oman)

– Depointing Losses (antenna misalignment)

– Polarization Mismatch Losses

– Thermal Noise

– Radio Frequency Interference (RFI)

You may ignore:

– Doppler Shift

– Faraday Rotation

– Fog/Ice attenuation

– Multipath effects

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### 3. Link Budget Calculation

Develop a complete Link Budget including:

– Transmit Power (Pt)

– Antenna Gains (Gt, Gr)

– Total Losses

– Received Power (Pr)

– Noise Power (N)

– Signal-to-Noise Ratio (SNR)

Ensure the system achieves reliable communication under worst-case conditions.

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### 4. MATLAB Simulation

Build the system using:

– MATLAB Communications Toolbox

– RF Blockset

Your simulation must include:

– Transmitter block

– Channel with all losses and noise

– Receiver block

Clearly show:

– Block diagram

– Signal flow between components

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### 5. System Design Choices

You must justify all design decisions, including:

– Multiple Access Technique (choose one: FDMA / TDMA / CDMA)

– Modulation Scheme (e.g., QPSK, BPSK)

– Error Correction Technique (e.g., FEC)

– Antenna types and parameters

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### 6. Performance Evaluation

Analyze system performance using:

– Bit Error Rate (BER)

– Throughput

– Capacity

– Outage Probability

Provide graphs and simulation results from MATLAB.

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### 7. Oman Context Consideration

The system must be adapted for Oman by considering:

– Environmental effects (dust, sandstorms)

– Geographic coverage

– Practical implementation challenges

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### 8. Final Deliverables

Prepare a report (max 4000 words) including:

1. Abstract

2. Objectives

3. Literature Review

4. System Design

5. Link Budget Calculations

6. MATLAB Simulation Model

7. Results and Analysis

8. Conclusion

9. Individual reflection 4 students

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### 9. Additional Requirements

– Include diagrams of the system

– Include MATLAB screenshots or outputs

– Clearly explain each block in the system

– Highlight assumptions and trade-offs

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### 10. Expected Outcome

The final system must demonstrate a fully functional satellite communication link capable of reliable data transmission in a lossy environment.

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Make sure the work is clear, well-structured, and technically accurate. All calculations and simulation results must be justified and explained.