1. InterSystem Electromagnetic Compatibility

2. Evolution of communication systems

3. Indoor communication systems - characteristics

4. Technological congestion

5. Interference scenario

6. Bluetooth – WiFi. Interference mechanism

7. Bluetooth – other systems in ISM band The performed theoretical studies have shown:

8. 1. Collaborative solutions: 1.1 TDMA 1.2 MEHTA 1.3 Interference Cancellation 2. Non-collaborative solutions: 2.1 Adaptive Packet Selection and Traffic Scheduling 2.2 Adaptive Frequency Hopping Bluetooth – IEEE 802.11b The performed theoretical studies have shown:

9. Bluetooth – IEEE 802.11b

10. Network QoS measurements - experience

11. Future research – mixed configurations measurements 1.802.11b - 802.11g (interference) 2.802.11a - 802.11g (gain) 3.Bluetooth - 802.11b/g (interference)

12. Indoor propagation effects

13. Indoor EMC path

14. Existing indoor propagation models 1. Statistical models: 1.1 Amplitude distribution 1.2 Phase distribution 1.3 Angle-of-arrival distribution 2. Empirical models 2.1 ITU-R P.1238: 2.2 Multilayer model: FAF = 15+(5  10)*k [dB]

15. Deterministic models – ray tracing

16. Indoor propagation - challenges 1.Unknown ray tracing sensitivity to innacuracies: 1.1 in material electric parameters 1.2 in geometrical dimensions (indoor floormaps) 2. Unresolved issue: 2.1 role of diffraction

17. Multilayer structure – innacuracy in electric parameters analysis

18. Indoor propagation - future research