Non-Linear Energy Harvesting Dual-hop DF Relaying System over n-µ Fading Channels

Abstract

In this work, we analyze a wireless energy harvesting decode-and-forward (DF) relaying network with beamforming that is based on a practical non-linear energy harvesting model over η−µ fading channels. We consider a dual-hop relaying system having multiple antennas at the source and destination only. The single-antenna energy constrained relay assists the source to communicate with the destination. At the relay node, we assume a non-linear energy harvesting receiver which limits the harvested power level with a saturation threshold. By considering a powersplitting based relaying (PSR) protocol and a non-linear energy harvesting receiver, we analyze the system performance in terms of the outage probability and throughput for various antennas combinations and for various values of the fading parameters, η and µ. The η −µ fading model has a few particular cases, viz., Rayleigh, Nakagami-m, and Hoyt. These results are general and can be reduced for different fading scenarios as well as for linear energy harvesting relaying.

Average SER analysis of two‐hop WP DF relay system under κ−μ shadowed fading

“…Generalized , , and shadowed fading models are considered in [29–33] to examine the performance of WP relay systems with EH at the relay node(s). To the best of our knowledge, no work on WP relay systems with EH at source node under consideration of the generalized fading models is reported in the literature.…”

Non-Linear EH Relaying in Delay-Transmission Mode over n-µ Fading Channels

“…A non-linearity of an EH relay/receiver restrict the level of the harvested energy because it is not a practical node. The performance of a two-hop DF EH relaying network based on a non-linear mode of EH receiver was investigated for classical fading channels in [6]- [12] and for general κ − µ shadowed and η − µ fading channels, respectively, in [6] and [13]. In [6], a DF EH relaying system was studied based on non-linear EH receiver with hardware impairments and performance was analyzed under κ − µ shadowed fading channels.…”

“…In [12], an AF non-linear EH relaying system was studied with perfect and imperfect CSI. Recently, a non-linear EH relay receiver in conjunction with the energy harvesting PSR protocol in a two-hop EH relaying for η − µ fading channels was examined in a delay-limited transmission mode [13].…”