ELEC ENG 4054/7081/7083 Telecommunications Systems

ELEC ENG 4054/7081/7083 Telecommunications Systems
Assignment 3: Long Term Evolution
Due 5pm on Monday 2 November – via MyUni only. This assignment is worth 10% of your final grade.
This is a coding assignment which will give you some experience in some of the principles behind Long Term
Evolution technologies.
Language: Use Matlab. Make sure your code is commented or easy to follow. Include your code in your answers.
What to submit
• Your Matlab code
• Images generated by your Matlab code
• Your report is expected to be written to a professional standard and show original critical insight.
The aim of this question is to explore the properties of Orthogonal Frequency Division Multiple Access. As near-­graduates, the assignment is deliberately open-­-ended. You should feel free to collaborate in developing your understanding, and you may use MyUni resources to do this.
Minimum requirements:
• Generate a stream of binary data
• Provide error correction by, for example, implementing a convolutional code
• Using at least 15 OFDM channels and with QAM, 16-­-QAM and 64-­-QAM (in turn), generate a complex baseband OFDM signal
• Now add Additive White Gaussian (complex) noise, initially to a level representing background thermal noise (assume a signal to noise ratio of say 20dB as a best case scenario)
• Then perform the signal recovery using a fourier transform block
• Finally, implement a Viterbi decoder to recover your user data
• Explore the performance of your system against different channel (noise) conditions
Recommendations:
• You should be able to identify how to step through this in a modular and systematic way
• There is an opportunity to explore here. Be realistic about what you can achieve.
• You have been exposed to all of the Matlab tools you need to complete this task.