Table 1 Some QoS parameters in related studies

Response time

Time elapsed from acceptance to successful response to the task on the server

[44]

Delay

Time spent to transfer and process the request on the server

[5, 61]

Resource productivity

Using network resources (bandwidth, processor, and memory)

[62, 63]

Throughput

Tasks performed per unit of time or fair maximum use of resources and allocation of resources to workflows at the moment of their arrival

[7, 64]

Load-balancing

Rate of workload distribution on the network elements

[63]

Loss rate

The ratio of lost packets to the sent packets

[61]

Packet delivery rate

The number of packets safely delivered to destinations

[65]

Overload

Percentage of using resources more than the threshold

[61]

Energy consumption

Consumed energy by the network nodes

[64, 66]

Scaling

The ability of the network to support changes in the number of devices and network workload traffic as well as green computing

[17]