Journal of Sensors / 2020 / Article / Tab 1

Research Article

Energy-Efficient Time-Domain Equilibrium Scheduling and Optimization Scheme for Energy Harvesting-Powered D2D Communication

Table 1

Important notations.

SymbolDefinition

EH-DP/CU group number, which belongs to
Cellular user in th EH-DP/CU group
EH-DP user in th EH-DP/CU group
Cellular user set, where
EH-DP user set in th EH-DP/CU group, where
Transmission rate of user () in an instantaneous time slot
Minimum transmission rate of each user in each time slot
Time slot, where
Transmission power of user in an instantaneous time slot
Maximum transmission power of each user in each time slot
Transmission indicator parameter, 1 indicates that the th D2D pair is chosen to transmit in time slot , otherwise
Channel gain between nodes and
Noise power
Channel bandwidth of each cellular user
Density of noise power
Harvested energy of th D2D user in an instantaneous time slot
Energy harvesting efficiency of th D2D user

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