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BS.c. Thesis Topic LTE and a-like Dr.-Eng. Khaled Shawky Hassan [email protected] Orientation 1

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BS.c. Thesis Topic

LTE and a-like

Dr.-Eng. Khaled Shawky Hassan [email protected]

Orientation 1

2

Projects Available

• What do we have

– 5th Generation Embedded Tester (5GET Project – GUC

university project)

– R&D project of Axxcelera Inc. (sponsored by Axxcelera

Egypt)

– LTE system level simulations (offered for both

Communication and Network)

– RFID (not covered in these slides –offered by Eng. Abdel Fatah and my

co-supervision and Dr. Khaled El Mahgoub (Trimble Navigation Inc.))

What is LTE

• LTE: it is the short name of long-term evolution, marketed as 4G LTE,

and it’s evolution is named after LTE-Advanced (marketed as 5G)

• Main air-interface: Evolved Universal Terrestrial Radio Access (E-UTRA)

• Physical Layer technology:

– Orthogonal Frequency Division

Multiple Access (OFDMA) [downlink]

– Single Carrier FDMA (SC-FDMA)[uplink]

• System architecture: not very far from

3G; however, we need to write down two

Important terminologies:

– UE: user equipment –or mobile unit

– eNodeB (evolved Base-station system)

4

• 5GET Project: o LTE-A link-level design and simulation using MATLAB

o [3 different topics Project code: DREAM]

o LTE-A Air interface using USRP 210 (this fancy kit which needs only

MATLAB experience) o [3 different topics Project code: USENet]

o LTE-A implementation using TI DSP C6670 (the strongest ever for LTE

development; we have 8 kits! o It needs matlab and programing skills (Java or even less, C (not C++))) [4 topics

Project code: DSPUeE-Platform]

• Axxcelera LTE Project: (needs a good theoretical back ground and MATLAB knowledge)

o LTE-A research on co-operative multi-points (2 topics)

o LTE-A research on multiuser systems (2 topics)

• Resource allocation (a network level-simulator):

o LTE system level simulator (1 thesis) (Offered for network and comm.)

Projects Available

5

• A basic academic ideas that evolved recently to a real

• We need to build a UE Tester that is capable to debug the eNodeB

failures and show them in Matlab

• Our project is a huge university project that is handled among 5

Professors; each deals with it from his experiences and tools

• My prospective team will be mainly developing with MATLAB and

for speed issues MATLAB/C-mex and C (not even C++; tutorials will

be avilable)

• Expected knowledge you will gain:

– LTE-Advanced know how and building blocks

– Research, development, and design

– Real standard interface and, hopefully, contribution

– Possible cooperation with a highly interested German firm

– Long-term project that will encourage you to continue your research if you liked

the topic.

– Individual concrete work as well as cooperative and creative team work

– Prepares you for LTE market

The 5GET Project

6

• What are the problems with the current LTE-UE-Testers:

– LTE-Advanced features are not covered and they are not able to be scaled up

for them

– Size and weight; check the internet for the current sizes and weights to see the

real problem ;)

– Price; you are buy (when you like to buy an LTE tester) an old technology to test

present devices with far-future prices --- a real miss!!

• 5GET: What do we need to develop –A holistic view:

– An AMC form factor box with Matlab-and-DSP (our team), an air-interface (again

our team), and FPGA function bank (with the electronics team-members)

– This box should emulate* a real UE in all its situations

– You will be a developing a part of the project in 3~4 months

The 5GET Project

*: what is the difference between simulate and emulate?

7

Design and Research of Embedded Architectures using

MATLAB (DREAM)

The 5GET Project

• Develop a MATLAB simulation environment for

LTE-A baseband for one the following:

• Develop for UE in UL channel with SC-FDMA

• Develop for UE in DL with OFDMA (single antenna systems

[SISO])

• Develop for UE in DL with OFDMA (multiple antenna systems

[MIMO])

8

USRP 210n – A software defined radio (SDR)

The 5GET Project

This project will allow you to build a simple base-station (again, called an eNodeB)

and a simple user terminal (called UE) using a standard PC/Laptop and a low cost

software radio frontend (our fancy USRPs)

These are the topics (with the code USENet):

- eNodeB signal acquisition in UL with multi-user interface

- eNodeB signal generation in DL with, also, multi-user interface

- UE emulation in both UL and DL

9

TI – C6670 –Digital Signal Processor

The 5GET Project

This project will allow you to develop

the LTE-Baseband outside PC, and

rather do it on a special processor

called DSP (digital signal processor)

You will be developing in this project

using MATLAB Simulink (TI-toolbox)

and C (simple C for DSP and not C++)

The projects will be:

- UE DL for multiple antenna system

- UE DL for single antenna and TX

diversity

- UE UL for single antenna system

- UE multi resource analysis and

decoding functionalities

10

TI – C6670 –Digital Signal Processor

The 5GET Project

11

- LTE-Advanced Cooperative MIMO

- LTE-Advanced Multiuser MIMO

Axxcelera Egypt Project

12

LTE System-Level Simulator (w/ and w/o Relays)

The 5GET Project

• In order to evaluate the performance of new mobile network technologies, system

level simulations are becoming very essential. In this project, we need to consider

a network with/without Relays to evaluate the overall throughput enhancement in

the network and, particularly, at cell edges and during hand-offs.

• Thus, we need to study • Network overall system performance (throughput) with practical UEs traffic model(s)

• Monitor throughput in the whole network (see the throughput heat-map example)

• Throughput, hand-off capabilities, and cell coverage enhancements using Relays