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

Algorithm 3

Time-division scheduling scheme (TDSS).

Input: Set t, ,, and ;

Output: ;

Initialize: and

 step 1: pick out the current EH-DP candidates: if , then ;

 step 2: pick out the next EH-DP candidates: based on the energy arrival prediction value , calculate the next available energy according to equation . Similarly, let when for all EH-DP in .

 step 3: load balance procedure: consider the feature that energy cannot be used in advance. So, only when , the transmission load between two adjacent time slots can be balanced, and the current allowed transmission load c_t equals to . After that, pick out EH-DPs in the current candidate list to multiplex the current channel resource of c_k-th CU.