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Stability analysis of slotted aloha with opportunistic RF energy harvesting

İbrahim, Abdelrahman M. and Erçetin, Özgür and Elbatt, Tamer (2016) Stability analysis of slotted aloha with opportunistic RF energy harvesting. IEEE Journal on Selected Areas in Communications, 34 (5). pp. 1477-1490. ISSN 0733-8716 (Print) 1558-0008 (Online)

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Official URL: http://dx.doi.org/10.1109/JSAC.2016.2520248

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. Additionally, we analyze the case where RF energy harvesting serves as a backup for an unlimited energy source. We present numerical results that validate our analytical results, and demonstrate their utility for the analysis of the exact system.

Item Type:Article
Uncontrolled Keywords:Wireless networks; slotted Aloha; opportunistic energy harvesting; interacting queues
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101-6720 Telecommunication
ID Code:29457
Deposited By:Özgür Erçetin
Deposited On:03 Aug 2016 11:51
Last Modified:03 Aug 2016 11:51

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