Robustness-Based Transmission Strategy for Wireless-Powered Communication Networks

In the wireless powered communication network (WPCN), deployed nodes that harvest energy from power station (PS) and then transmit data to access point (AP) may waste information transmission (WIT) opportunities due suffered faults. Confronting this dilemma, we propose a novel metric robustness, defined as number of available for WIT, evaluate its impact on throughput. To optimize tradeoff between throughput design an threshold approach, where robustness decreases with first increases it WIT rate opportunities. designed formulate different states Markov chain processes prove existence steady-state probability distribution. Moreover, in scenario high by select higher improved k -means++ algorithm, order increase Finally, simulations validate theoretical analysis performances under id="M2"> algorithm show that, compared comparison algorithms, id="M3"> achieves similar low computational complexity.