... problem of the combination of IoT services deployment and virtual machine consolidation in the Cloud- Fog system as a mixed-integer linear program with three layers in the Cloud- Fog system including... foundations of fog computing have been established [1, 2], deploying IoT services onto a Cloud- Fog system is still facing many challenges Offloading IoT services to the cloud may result in an additional... and QoS constraints while maximizing resource utilization In this thesis, we investigate the problem of IoT services deployment in CloudFog system to provide IoT services with minimal resource