University Of Peloponnese Faculty of Economy, Management and Informatics Department of Informatics and Telecommunications Michael Batistatos (Academic Laboratory Teacher) Tripolis (Greece) Newcastle (UK)

Wireless and Mobile Communications Lab Electromagnetic Radiation Measurements

Wireless and Mobile Communications Lab We are exposed to a sea of EM radiation (nature sources, communication devices, power lines, appliances e.g. microwave oven)

Wireless and Mobile Communications Lab

World goes wireless

Wireless and Mobile Communications Lab Modern society – What are the sources of the microwave radiation?

Wireless and Mobile Communications Lab

Equipment for RF measurements: Narda srm-3000

Wireless and Mobile Communications Lab RF Bands

Wireless and Mobile Communications Lab RF Spectrum Analysis

Wireless and Mobile Communications Lab Real Scenario - Area and landscape

Wireless and Mobile Communications Lab Yellow Pins: Measurement Locations Red & Blue Pins: Mobile Phone Base Stations

Wireless and Mobile Communications Lab Electric Field Strength (V/m) Location A Location B Location C Can you explain the graph of the Location C measurement?

Wireless and Mobile Communications Lab Electric field strength versus time Some interesting results

Wireless and Mobile Communications Lab Bioinitiative Report 2007 (proposed limit of V/m) and 2012 (proposed limit of 0,036 V/m) ICNIRP: International Commission on Non- Ionizing Radiation Protection WHO: Worldwide Health Organization Exposure Limits by:

Wireless and Mobile Communications Lab Example of RF exposure analysis

Wireless and Mobile Communications Lab LocationEnvironment Total value Ε (V/m) Bioinitiative E bio (V/m) Times above/below Hondos Centerurban4, ,5 above Πλ. Αγ. Βασιλείουurban1, ,7 above ΟΤΕ 2urban1, ,6 above Πλ. Κολοκοτρώνηurban0, ,8 above ΕΥΔΑΠurban0, ,5 above Παιδική Χαράurban0, ,1 above ΟΤΕ 1urban0, ,2 below Δημοτικό Σχολείοurban0, ,7 below ΒΙΠΕsuburban0, ,7 below Νοσοκομείοsuburban0, ,4 below 4 ο Γυμνάσιοurban0, ,5 below Πανεπιστήμιοsuburban-rural0, ,6 below Στάδιο (πίσω)suburban0, ,8 below 2 ο Λύκειο (LoS-περιπτωση)suburban0, ,7 below 4 ο Νηπιαγωγειοsuburban0, ,3 below Στάδιοsuburban0, ,3 below ΙΚΑsuburban0, ,7 below 8 ο Νηπιαγωγείοsuburban0, ,4 below 1 ο Λύκειοsuburban0, ,5 below 2 ο Λύκειο (ΝLoS-περίπτωση)suburban0, ,8 below Άλσος Αγ. Γεωργίουsuburban-rural0, ,6 below

Wireless and Mobile Communications Lab E(V/m), 5 cm distance, weak signal E(V/m), 5 cm distance, strong signal Electric Filed Strength measurement when the mobile phone is transmitting in GSM mode

Wireless and Mobile Communications Lab Practical approach to communications systems in Matlab-Simulink -Introduction to Simulink -Build simple systems -Study PCM modulation

Wireless and Mobile Communications Lab Introduction to Simulink Download the pdf and mdl files and follow the instructions Pdf file: Introduction to Simulink Mdl file: Intro.mdl

Wireless and Mobile Communications Lab Build simple systems Download the pdf and mdl files and follow the instructions Pdf file: Pulse Amplitude Modulation (PAM) Mdl file: PAM.mdl

Wireless and Mobile Communications Lab Study PCM modulation Download the pdf and mdl files and follow the instructions Pdf file: Pulse Code Modulation (PCM) Mdl files: Sampling.mdl, Quantization.mdl, PCM.mdl

Wireless and Mobile Communications Lab Thank you Questions?