Stability Analysis of Slotted Aloha with Opportunistic RF Energy Harvesting
arXiv:1501.06954
Abstract
Energy harvesting (EH) is a promising technology for realizing energy efficient wireless networks. In this paper, we utilize the ambient RF energy, particularly interference from neighboring transmissions, to replenish the batteries of the EH enabled nodes. However, RF energy harvesting imposes new challenges into the analysis of wireless networks. Our objective in this work is to investigate the performance of a slotted Aloha random access wireless network consisting of two types of nodes, namely Type I which has unlimited energy supply and Type II which is solely powered by an RF energy harvesting circuit. The transmissions of a Type I node are recycled by a Type II node to replenish its battery. We characterize an inner bound on the stable throughput region under half-duplex and full-duplex energy harvesting paradigms as well as for the finite capacity battery case. We present numerical results that validate our analytical results, and demonstrate their utility for the analysis of the exact system.
References in corpus (5)
- Broadcasting with an Energy Harvesting Rechargeable Transmitter
- Energy Cooperation in Energy Harvesting Communications
- Dynamic Spectrum Access in Cognitive Radio Networks with RF Energy Harvesting
- On the Transfer of Information and Energy in Multi-User Systems
- MIMO Broadcasting for Simultaneous Wireless Information and Power Transfer