This paper studies the problem of minimizing the age of information (AoI) by optimally associating users to energy harvesting access points (EH-APs) and scheduling their packets that have stringent deadlines constraints. With a single EH-AP, this problem is already shown to be NP-hard. First, we consider the single EH-AP scenario and study the fairness between packets. We show the existence of fairness-AoI tradeoff. Further, we improve the previously proposed algorithms by reducing the average age of information. Finally, the general problem is considered. We reduce the problem to a knapsack problem and propose a dynamic programming approach to solve it. We present simulation results and show the efficiency of the proposed solutions compared to the optimal and the state-of-the-art ones.
Association and Scheduling in Energy Harvesting Networks: Age of Information and Fairness Trade-off
2020-05-01
97059 byte
Conference paper
Electronic Resource
English