Title
Power Splitting-Based SWIPT With Decode-and-Forward Full-Duplex Relaying.
Abstract
This paper investigates simultaneous wireless information and power transfer (SWIPT) for a decode-and-forward (DF) full-duplex relay (FDR) network. A battery group consisting of two batteries is applied to utilize the relay-harvested energy for FDR transmission. The virtual harvest-use model and the harvest-use-store model are considered, respectively. By switching between two batteries for charging and discharging with the aid of power splitting (PS), concurrent source and relay transmissions can overcome spectral efficiency loss compared with half-duplex relay (HDR)-assisted PS-SWIPT. The outage probability for the virtual harvest-use model is presented in an exact integral form and the optimal PS (OPS) ratio that maximizes the end-to-end signal-to-interference-plus-noise ratio (e-SINR) is characterized in closed form via the cubic formula. The fundamental tradeoff between the e-SINR and recycled self-power is quantified. The OPS ratios and the corresponding outage probabilities in noise-limited and interference-limited environments are also derived. In the harvest-use-store model, a greedy switching (GS) policy is implemented with energy accumulation across transmission blocks. The OPS ratio of the GS policy is presented and the corresponding outage probability is derived by modeling the relay’s energy levels as a Markov chain with a two-stage state transition. Numerical results verify the performance improvement of the proposed scheme over HDR-assisted PS-SWIPT in terms of outage probability and average throughput.
Year
DOI
Venue
2016
10.1109/TWC.2016.2604801
IEEE Trans. Wireless Communications
Keywords
Field
DocType
Relays,Batteries,Wireless communication,Numerical models,Switches,Silicon,Interference
Wireless,Markov chain,Computer network,Spectral efficiency,Interference (wave propagation),Maximum power transfer theorem,Throughput,Relay,Mathematics,Duplex (telecommunications)
Journal
Volume
Issue
ISSN
15
11
1536-1276
Citations 
PageRank 
References 
28
0.72
33
Authors
4
Name
Order
Citations
PageRank
Hongwu Liu1659.58
Kyeong Jin Kim2342.51
Kyung Sup Kwak39212.10
H. V. Poor4254111951.66