Research Article
Towards a QoE-Driven Resource Control in LTE and LTE-A Networks
Table 2
Summary of KPIs to be measured at each protocol layer.
| | Layer | KPI/parameter |
| | Signaling | Attach delay | | EPS bearer establishment delay |
Transport
| TCP advertised window (ADWN) | | TCP maximum segment size (MSS) | | Network | Average RTT | | RTT variance | | IP packet loss rate | | IP packet sizes | | Application | | | Web browsing | Average throughput at application layer () | | Web page downloading time () | | DNS resolution time | | VoIP (E-model) | End-to-end delay at application level () | | Loss probability at application level () | | Video YouTube (HTTP/TCP) | Video buffer size () | | Buffer length when the player paused () | | Video bitrate () | | Video length () | | Average TCP goodput () | | Number of empty-buffer events () |
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