Research Article
Improving Energy Efficiency of Multimedia Content Dissemination by Adaptive Clustering and D2D Multicast
| Description | Parameter | Value |
| Multicast sending antenna gain | | 1 | Multicast receiving antenna gain | | 1 | Multicast sending antenna height | | 1 m | Multicast receiving antenna height | | 1 m | Maximum multicast power for MBS | | 10 W | Maximum multicast power for DCHs | | For any DCH k, is set as 100 mW | Carrier signal wavelength for intracluster D2D | λ | 0.1224 m | System loss factor for intracluster D2D | L | 1 | Crossover distance for intracluster D2D | dcrossover | 103 m | Path loss exponent for intracluster D2D | α | For any multicast radius di, α = 2 when di < dcrossover; α = 4 when di ≥ dcrossover | Initial battery capacity | ei | For any DCH i, ei is distributed randomly between 500 J and 2000 J | Benefit coefficient | η | 1.2 |
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