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 type | Applications | Minimum bandwidth requirement for QoE | Bandwidth requirement | Connection duration average |
| I | Voice telephony | 128 Mbps | 256 Mbps | 1,800 sec (30 min) | II | Video-phone | 256 Mbps | 512 Mbps | 1,800 sec (30 min) | III | Paging | 384 Mbps | 768 Mbps | 300 sec (5 min) | IV | E-mail | 512 Mbps | 1.28 Gbps | 300 sec (5 min) | V | Remote-login | 640 Mbps | 1.28 Gbps | 1,800 sec (30 min) | VI | Data on demand | 768 Mbps | 1.54 Gbps | 1,800 sec (30 min) | VII | Tele-conference | 896 Mbps | 1.82 Gbps | 3,000 sec (50 min) | VIII | Digital audio | 1.28 Gbps | 2.56 Gbps | 1,200 sec (20 min) |
| Parameter | Value | Description |
| | 50 | The number of SBSs in the D2D-enabled small cell system | | 1000 | The number of UE in the D2D-enabled small cell system | X | 100 | The number of all multimedia files | L | 30 | The number of maximum cached files in each SBS | | 0.5 | A weighted average between local and global information | | 1.5 | The upper bound of function | | 0.5 | The lower bound of function | | 1 | Gap between uncoded M-QAM and the capacity, minus the coding gain | | 0.7 | A learning rate that models how the -values are updated | | 0.3 | A weighted average between local and global learning approaches | | 100 W | Predefined power level for cellular communications | | 50 W | Predefined power level for D2D communications |
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