1

Welcome toEQ2440 Project in Wireless CommunicationEQ2435 Wireless Communication-Business

EQ2430 Project Course in Signal Processing and Digital Communication

Kick-off MeetingFebruary 14, 2014

Per ZetterbergSchool of Electrical Engineering

2

Program• Who are we?• Introduction to the course.• Presentation of the projects.• Application form.

https://www.kth.se/social/course/EQ2440/

3

Who are we?

Per ZetterbergCourse responsible

Nima Moghadam,PhD student

Martin Ohlsson, Android Guru

Senay Negusse, Phd student

Sebastian SchiesslTA, PhD Student

Eshan OlfatTA, PhD Student

Arun Venkitaraman,TA, PhD Student

4

Course Facts• Credits: 12.• Grade: ECTS. A-F.• Group work.• Number of students per group 3-7 (mostly 4-6).• You choose among a set of “eligible” projects.• You tell us about your skills.• We form groups and assign a leader.• One Project assistant per group.• Course responsible: Per Zetterberg.• Prototype responsible: You!• Goals and time-table are specified, how to achieve this

is up to the team.

5

Real-time based projects• Real-time processing on smart-phone or Ubuntu PC.• Receiving data from sensors (e.g. A/D converters)

transmitting data on actuators (e.g. D/A converters).• Presentation on of results on screen.• The signal processing in real-time is one of the major

challenges due to the resulting code/algorithm structure and computational-time constaints.

Group member roles:• Programmer .• Matlab/theory developer.• Group leader/generalist.

6

Areas groups will work with• Algorithms (Matlab).• Project management.• Reports (Word or LaTeX)• Coding (Eclipse or emacs)• Web-pages.• Oral presentation (PowerPoint)• Setting up experiments, connecting cables.• Integrating.• Debugging, debugging, debugging.

• Project management: project leader.• Smartphone-programming (android, eclipse)• PC-programming (gcc-realtime)• Experiments.

Some will work with

7

Smartphone/android based projects

• Display : plots and text.• Camera• Microphone.• Loudspeaker.• Magnetometer• Wifi RSSI measurements.• Send data using Wifi.• Acceloremeters.• Gyros.• Touch screen.

Features used in our projects:

8

USRP based projects• USRP = Universal Software Radio Peripheral• Used to transmit and receive wideband (4-8MHz) signals

over real radio transmitters and receivers.• Matlab interface to download and upload I&Q samples

for off-line development.• Real-time implementations are the goal.• The signals are distorted by real-world RF-impairments

(non-linearities, intersymbol-interference, phase-noise, frequency offset).

9

What would be your advice to a student who chooses this course next year ?• Don’t choose another course at the same period. Start really early with

everything.• Start working from the beginning• Work hard in the beginning and try to ease up in the end• Work hard in the beginning of the project• Start working from the first day, and don’t take more than a week off,

during the Easter• Choose it, but take it alone, with nothing else.• Work work work.• Take the course if you like to work hard.• Start early. Implement on DSP asap.• Don’t read other courses in parallel• Take it!

10

Eligible Projects1. In-flight file-transfer using 3mm-cable2. Teleconference with noise cancellation3. Smart-phone multi-channel sound4. Wireless transmission at 60GHz

11

Project #1:In-flight file-transfer using 3mm-cable

• File-transfer on airline -no radio allowed!

• Use loudspeaker and microphone

• Use a 3-mm cable between the phones.

• Push the data rate to the limit.

• Challenging modulation and coding problem!

12

Project #2: Teleconference with noise (interference) cancellation

Conference room

Internett

TalkTalk Noise

Interference cancellation!Adaptive signal processing!

13

Project #3:Smart-phone multi-channel sound

And IIII will always love youuu …..

Bittersweet memories

14

Project #3:Smart-phone multi-channel sound

And IIII will always love youuu …..

And IIII will always love youuu …..

• Estimate delays• Timing advance (TA)

orders over internet

TA

TA

15

Project #4:Wireless Transmission over 60GHz

• 60GHz = mm wave. High frequencies => high data rates. 5G research.

• Synchronization• Modulation/demodulation• Coding• Phase noise

USRP 60GHz

USRP60GHz

16

Project Application Form• Deadline February 20th.• Name, project choice, skills.• Group formation by March 17.• Project manager assigned (group can request change).• More information on projects on course homepage:

• Sign the participant list and fill in your email.• See you March 24 at 10.15 in B24!

https://www.kth.se/social/course/EQ2440/