Iot sdk thesis

3 Implementation, Testing and Results ...................................................................... 35
 
3.1 NB-IoT based Communication ....................................................................................... 35
 
3.1.1 NB-IoT implementation without on-board Modem (Arduino Mega + BC66) ........ 35
 
3.1.2 NB-IoT implementation with on-board Modem (SODAQ SARA) ........................ 40
 
3.2 Automated Code Generation .......................................................................................... 44
 
3.2.1 Test Cases ................................................................................................................ 45
 
3.2.2 Summary .................................................................................................................. 51
 
3.2.3 Conclusion ............................................................................................................... 52
 
3.3 Stack integration: adding the DTLS support .................................................................. 53
 
3.3.1 Role of UNIX libraries in Eclipse tinydtls and their Resolution ............................. 54
 
3.3.2 Session API (tinydtls/session.c, tinydtls/session.h) ................................................. 54
 
3.3.3 DTLS Connections API (dtlsconnection.c, dtlsconnection.h) ................................. 57
 
3.3.4 Integration to Wakaama and other changes ............................................................. 63
 
3.3.5 Results ..................................................................................................................... 65
 
3.4 End-to-end Testing ......................................................................................................... 69
 
4 Conclusion .................................................................................................................. 72