Research Article

D2D-Enabled Small Cell Network Control Scheme Based on the Dynamic Stackelberg Game

Table 1

System parameters used in the simulation experiments.

Application typeApplicationsMinimum bandwidth requirement for QoEBandwidth requirementConnection duration average

IVoice telephony128 Mbps256 Mbps1,800 sec (30 min)
IIVideo-phone256 Mbps512 Mbps1,800 sec (30 min)
IIIPaging384 Mbps768 Mbps300 sec (5 min)
IVE-mail512 Mbps1.28 Gbps300 sec (5 min)
VRemote-login640 Mbps1.28 Gbps1,800 sec (30 min)
VIData on demand768 Mbps1.54 Gbps1,800 sec (30 min)
VIITele-conference896 Mbps1.82 Gbps3,000 sec (50 min)
VIIIDigital audio1.28 Gbps2.56 Gbps1,200 sec (20 min)

ParameterValueDescription

50The number of SBSs in the D2D-enabled small cell system
1000The number of UE in the D2D-enabled small cell system
X100The number of all multimedia files
L30The number of maximum cached files in each SBS
0.5A weighted average between local and global information
1.5The upper bound of function
0.5The lower bound of function
1Gap between uncoded M-QAM and the capacity, minus the coding gain
0.7A learning rate that models how the -values are updated
0.3A weighted average between local and global learning approaches
100 WPredefined power level for cellular communications
50 WPredefined power level for D2D communications