1. GROUP#14 NAVEED VAHEED | MYKOLA ZAITSEV| NIKO PERERA | SAMU AHVENAINEN Wireless Systems

2. LOCATION: Jämeräntaival 6, Otaniemi

3. MOTIVATION AND HYPOTHESIS

4. MEASUREMENT CAMPAIGN ”IF YOU WANT TO MAKE A PHONE CALL, YOU GO OUTSIDE”

5. http://opencellid.org/ Signal Strength BaseStation Location Cell ID LAC MNC MCC MEASUREMENT TOOLS

6. MEASUREMENT RESULTS -105 to -100 = Bad Signal/drop call -99 to -90 = Poor/Not reliable signal -89 to -80 = OK But not good signal -79 to -65 = Good Signal Around -65 = Excellent Signal

8. RESULT ANALYSIS

9. BS LOCATIONS

10. OUTSIDE BUILDING

11. SoneraDNA High-78 dBm-69 dBm Average-92 dBm-82 dBm Low-105 dBm-90 dBm INSIDE BUILDING

12. SIGNAL TO INTERFERENCE PLUS NOISE RATIO WITHOUT PENETRATION LOSSWITH PENETRATION LOSS -80 dBm Noise -102 dBm Noise PENETRATION LOSS

13. PROBLEMS SUMMARY

14. SOLUTIONS

15. “Thank you!”