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Bachelor Thesis Topics Spring 2019

Investigating Interleaved Chirp Spreading (ICS) in LoRa modulation for IoT, comparing simulations with real-world SDR implementation, and exploring strategies to improve LoRa capacity.

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Bachelor Thesis Topics Spring 2019

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  1. Bachelor Thesis TopicsSpring 2019 Phoebe Edward Nashed, MSc. Information Engineering and Technology (IET) Communications Department

  2. 1. Interleaved Chirp Spreading (ICS) LoRa-based Modulation • 2. Multiple Packet Reception in • LoRa-based Modulation Software-Defined Radio (SDR)

  3. SDR- Concept

  4. SDR- Simple Model TX RX

  5. SDR-Importance • Basic Concept of the emerging 5G cellular network. • C-RAN architecture

  6. SDR-Importance (Cont’d) • It gives more reliable results in comparison to simulations.

  7. 1. Interleaved Chirp Spreading (ICS) LoRa-based Modulation • 2. Multiple Packet Reception in • LoRa-based Modulation LoRa

  8. What is LoRa? • LoRa is Long Range. • Several Kilometers range. • Low Power. • Energy Efficient. • A type of frequency Modulation. • Mainly based on its Chirp Spread Spectrum (CSS) Modulation • Uses: • LP-WAN • IoT applications

  9. LoRa Applications

  10. 1. Interleaved Chirp Spreading (ICS) LoRa-based Modulation

  11. ICS- Motivation • Dense IoT deployments • ALOHA medium access scheme • Many collisions • Limited capacity

  12. ICS- Idea • Enhance LoRa capacity by decreasing the packet transmission time to decrease the probability of packet collision. • In nominal LoRa, each chirp signal transmits SF bits. • In ICS-LoRa, each chirp signal transmits SF+1 bits.

  13. 1. Interleaved Chirp Spreading (ICS) LoRa-based Modulation Project Aim • This projects aims at implementing the ICS-LoRa over SDR platform and evaluating its performance in comparison with the simulated system. Additional techniques shall be investigated and tested in order to further enhance the LoRa capacity.

  14. 1. Interleaved Chirp Spreading (ICS) LoRa-based Modulation Project Tasks • Completely understanding the LoRa-based modulation. • Simulating the ICS-LoRa system. • Testing the ICS-LoRa over SDR. • Comparing the results of the simulations and the SDR implemented system. • Conducting Literature Review on other techniques to further enhance LoRa capacity. • Testing these techniques over the SDR. • Publishing a paper.

  15. Pre-requisites versus Skills Gained

  16. 2. Multiple Packet Reception in LoRa-based Modulation

  17. Multiple Packet Reception- Motivation • Increasing SF, data rate decreases. • SF determines coverage range. • Co-SF interference. • Inter-SF interference.

  18. Multiple Packet Reception- Solution • Successive Interference Cancellation (SIC). • Utilizing Capture Effect. • Utilizing the timing information.

  19. 2. Multiple Packet Reception in LoRa-based Modulation Project Aim • This project aims at evaluating the performance of LoRa-based modulation under same and different SF interference, and implementing techniques to decode the interfered packets, then implementing such techniques over SDR.

  20. 2. Multiple Packet Reception in LoRa-based Modulation Project Tasks • Completely understanding the LoRa-based modulation. • Evaluating the performance of the LoRa system under co-SF and inter-SF interference. • Implementing such system over SDR. • Comparing between simulations and SDR results. • Conducting literature review on various techniques to overcome such interference. • Implementing such techniques and comparing between them. • Publishing a paper.

  21. Pre-requisites versus Skills Gained

  22. Advanced Communication Lab • Mon. 3rd and 4th. • Thurs. 4th and 5th.

  23. Description of the Projects • eee.guc.edu.eg • Wireless Announcements

  24. Previous BSc. Projects 1-A • Implementation of SISO OFDM-based Communication System over SDR. • By: Haya Tamer Antennas TX RX Ethernet Cables to PCs Power Cables

  25. Previous BSc. Projects 1-B • Implementation of MIMO OFDM-based Communication System over SDR. • By: Haya Tamer Antennas Two TXs MIMO Expansion Cables Two RXs

  26. MIMO System Implemented Two TXs Two RXs Antennas MIMO Expansion Cables Power Cables Ethernet Cable to PC 2 Ethernet Cable to PC 1

  27. Previous BSc. Projects 2 • Implementation of One-Way Relaying System over SDR. • By: Walid Ashraf Relay RX TX

  28. Previous BSc. Projects 3 • STBC in Two-Way Relaying • By: Nancy Ehab Relay 1 Relay 1 Relay 1 Relay 1 SOURCE SOURCE Destination SOURCE Destination SOURCE SOURCE SOURCE Destination Relay 2

  29. Thank You 

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