Table 2 Simulation parameters - downlink LTE scheduling for delay-sensitive and best-effort traffic

Simulator

LTE link level simulator [30, 31]

Bandwidth, carrier frequency

5 MHz, 2.1 GHz

UE distribution, cell radius

Uniform, 1 km

Channel

3GPP-TU (typical urban)

Pathloss model

Hata-Cost-231 model

Shadowing model

Log-normal shadow fading

HARQ

Up to 3 synchronous

retransmissions

Channel fading

Block fading (1 ms)

UE speed

15 to 100 km/h (users moving

independently at variable speed)

CQI averaging method

Mutual information effective

SNR mapping

(MIESM) [37]

H_max, PLR_thr (video)

200 ms, 5% [34, 38]

H_max, PLR_thr (VoIP)

100 ms, 1% [32]

H_max, R_min (best-effort)

300 ms, 200 Kbps [32]

Number of video, VoIP and

18, 27, and 9

best-effort users

Average rate requirements

530, 64, and 400 Kbps

for video,

VoIP and best-effort users

n _c (Time-averaged channel

100 ms

quality window)

and n _w (Time-averaged

throughput window)