Distributed simultaneous wireless information and power transfer in multiuser amplify‐and‐forward ad hoc wireless networks

Baidas, Mohammed W.; Afghah, Masoud M.; Afghah, Fatemeh

doi:10.1002/dac.3411

Cited by 4 publications

(1 citation statement)

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“…To implement green communications, harvesting energy from radio-frequency (RF) signals has become an attractive strategy to overcome the key challenge of limited life-time of battery in wireless communication networks [19,20,21,22]. The harvested energy from the electromagnetic waves in radio frequency is considered as a new appropriate paradigm to improve the system's energy efficiency [23,24,25].…”

Section: Introductionmentioning

confidence: 99%

Enabling Full-Duplex and Energy Harvesting in Uplink and Downlink of Small-Cell Network Relying on Power Domain Based Multiple Access

Afghah

2020

IEEE Access

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In this paper, we introduce a small-cell network operating in the context of heterogeneous cellular networks for both downlink (DL) and uplink (UL) by deploying three techniques of full-duplex transmission mode, energy harvesting, and power domain-based non-orthogonal multiple access (NOMA) schemes. Compared to the conventional half-duplex orthogonal multiple access (OMA) scheme that has been widely implemented in current wireless communication systems, the full-duplex (FD) NOMA relying on energy harvesting scheme has a great potential to further enhance the system performance in terms of connectivity capability, spectral efficiency and outage performance. In the proposed two-user small-cell relying on NOMA scheme, the small-cell base station first transfers an energy-bearing signal to serve the two users in the DL phase. Later, an energy harvesting technique is proceeded to encourage the strong user and the weak user to transmit their messages in the UL phase in a FD manner. However, one major challenge related to the FD strategy is the self-interference signal due to a signal leakage from the terminal's output to the input. Besides that, the interference from macro-cell users is also main reason of degradation of the system performance. In this paper, we derive analytical expressions to describe the system's performance in terms of the outage probability and throughput. Moreover, extensive numerical simulations are performed to compare and highlight the performance of the proposed small-cell network with several practical scenarios. INDEX TERMSPower domain-based non-orthogonal multiple access, energy harvesting, small-cell, fullduplex, outage probability.

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