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Hybrid OFDM transceiver design and implementation for connected autonomous vehicles

  • Full or part time
  • Application Deadline
    Applications accepted all year round
  • Awaiting Funding Decision/Possible External Funding
    Awaiting Funding Decision/Possible External Funding

Project Description

Orthogonal Frequency Division Multiplexing (OFDM) is a signalling technique that exploits orthogonal carriers to transmit information and enhance received signal diversity and consequently increase received signal-to-noise ratio (SNR). In wireless mobile communications, carrier orthogonality is violated due to the inherent Doppler spread arisen by the temporal variability of the wireless channel. This effect causes degradation of received signal quality and becomes more evident in environments with very high mobility such those involving communications between vehicles, i.e., vehicle-to-vehicle (V-V) communications. However, the increased Doppler spread in V-V communications provides an alternative signal diversity mechanism by using spread spectrum signalling. It is characterized as Doppler diversity and it can be a significant mechanism to enhance performance in V-V communications. Starting from a very thorough literature review, the OFDM technique will be theoretically/mathematically studied and analyzed first to understand the important parameters affecting its performance. Focus will be on V-V communication channels and the student should come up with a solution compensating the increased Doppler spread in such channels. A further direction of the project will be to investigate the implementation of a novel OFDM architecture by inserting an extra add-on block that is capable to exploit the inherent Doppler diversity of V-V communications. Thus, a hybrid "two-dimensional" OFDM architecture will arise with dual degrees of freedom, i.e., those due to orthogonal carriers and those due to Doppler diversity, offering potentials for improved performance compared to the standard OFDM architecture. Both the hybrid and the standard OFDM architectures should be then implemented/simulated in a appropriate software tool (e.g., Matlab), where the student will demonstrate parameterized case studies, showing how the performance is affected in diverse V-V communication scenarios by varying relevant parameters of the V-V communication channel (e.g., power angular spread, vehicles’ velocities, etc). A comparative study of both architectures will demonstrate the performance improvement (if any) of the hybrid against the standard OFDM architecture.
This project is suitable for applicants with interests and good background in wireless communication systems and particularly in the physical layer of wireless communications. Indicatively, applicants should have good performance in the following subjects: Communication Principles/Theory, Digital Communications, Digital Signal Processing, Statistics and Stochastic Processes, Engineering Mathematics.

Application is made by using the online system at the following link:
(https://www.gla.ac.uk/schools/engineering/phdopportunities/)
Please note that this application is to gain admission to our PGR programme. Candidates applying for this project will most likely have an interview/discussion with the supervisor before any decision is made.

Funding Notes

The applicants have to make a separate funding application. Please see here for more details: View Website
Form for UK/EU applicants: View Website
Form for Chinese applicants: View Website
The options for International applicants are to be self – funded and/or owing personal scholarships

How good is research at University of Glasgow in General Engineering?

FTE Category A staff submitted: 84.00

Research output data provided by the Research Excellence Framework (REF)

Click here to see the results for all UK universities

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