Performance Analysis of Relay Selection for Cooperative Relays Based on Wireless Power Transfer With Finite Energy Storage

Liu, Kuang-Hao

doi:10.1109/tvt.2015.2469300

Cited by 64 publications

(50 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This makes sense as the κ increases, the branch switching rate happens more often and thus the outage performance is improved. Especially, when κ = γ th = 7, we obtain the best outage performance since DSSC system functions as a system which choose the best of R 1 and R 2 links for each transmission slot, which is presented in (29). However, the system outage probability increases when κ continues to go up since the source has to switch continuously between two relays, which in turn, causes a negative effect on the outage performance.…”

Section: Numerical Resultsmentioning

confidence: 94%

See 1 more Smart Citation

Full-duplex distributed switch-and-stay networks with wireless energy harvesting: design and outage analysis

Nhu

Bao

et al. 2016

J Wireless Com Network

View full text Add to dashboard Cite

Distributed switch and stay combining (DSSC) has been considered as an effective technique to achieve spatial diversity in a distributed manner with low processing complexity. In this paper, we incorporate DSSC into a full-duplex dual hop relaying system, where two energy-constrained relay nodes assist the information transmission from the source to the destination using energy wirelessly harvested from the source. By applying DSSC at the destination, this efficient technique not only improves performance of full-duplex relaying systems and increases the system diversity but also reduces the implementation and hardware complexity at the destination. We obtain tight approximate expression for outage probability in the case of using decode-and-forward (DF) relaying protocol and analytical expression for outage probability in the case of using amplify-and-forward (AF) relaying protocol. Numerical results show that our DSSC full-duplex relaying with wireless information and power transfer (WIPT) system achieves the full spatial diversity and has a better performance in terms of outage probability than that of the DSSC half-duplex relaying and conventional full-duplex relaying with WIPT system.

show abstract

Section: Numerical Resultsmentioning

confidence: 94%

“…In the case of γ th = κ, the system outage probability is also minimized and calculated as in (29), which can be derived as follows (this will be validated by simulation result in Section 6)…”

Section: Two Relays Operate In Af Modementioning

confidence: 99%

Full-duplex distributed switch-and-stay networks with wireless energy harvesting: design and outage analysis

Nhu

Bao

et al. 2016

J Wireless Com Network

View full text Add to dashboard Cite

show abstract

“…For further readings, the studies that considered whether the relay successfully decodes its receive signal or not can be found in [22], [23], [38] 6 Note that the amplification factor of the FG-AF strategy uses statistical CSI to determine the transmit power of the selected relay. Consequently, the transmit power of the relay could not be well adjusted according to the channel fluctuations, which leads to a performance degradation when compared to the variable-gain amplify-and-forward (VG-AF) strategy, as shown in Section VI.…”

Section: Communication Processmentioning

confidence: 99%

“…Considering charging/discharging behavior of the battery of relay nodes which is modeled as a twostate Markov chain, several relay selection schemes, i.e., random selection, distance-based selection, and distributed beamforming schemes were rigorously investigated in [22]. Also, considering a source-destination pair communication assisted by multiple RF energy harvesting relays using AF strategy, the author in [23] proposed a relay selection scheme that takes into account the battery status in addition to channel state information (CSI) for making selection criterion.…”

Section: Introductionmentioning

confidence: 99%

Exploiting Direct Links in Multiuser Multirelay SWIPT Cooperative Networks With Opportunistic Scheduling

Nhu

Costa

Duong

et al. 2017

IEEE Trans. Wireless Commun.

View full text Add to dashboard Cite

Abstract-In this paper, we analyze the downlink outage performance of opportunistic scheduling in dual-hop cooperative networks consisting of one source, multiple radio-frequency (RF) energy harvesting relays, and multiple destinations. To this end, two low-complexity, suboptimal, yet efficient, relay-destination selection schemes are proposed, namely direct links plus opportunistic channel state information (CSI)-based selection (DOS) scheme and direct links plus partial CSI-based selection (DPS) scheme. Considering three relaying strategies, i.e., decode-andforward (DF), variable-gain amplify-and-forward (VG-AF), and fixed-gain amplify-and-forward (FG-AG), the performance analysis in terms of outage probability (OP) is carried out for each selection scheme. For the DF and VG-AF strategies, exact analytical expressions and tight closed-form approximate expressions for the OP are derived. For the FG-AF strategy, an exact closed-form expression for the OP is provided. Additionally, we propose a gradient-based search method to find the optimal values of the power-splitting ratio that minimizes the attained OPs. The developed analysis is corroborated through MonteCarlo simulation. Comparisons with the optimal joint selection scheme are performed and it is shown that the proposed schemes significantly reduce the amount of channel estimations while achieving comparable outage performance. In addition, regardless of relaying strategy used, numerical results show that the DOS scheme achieves full diversity gain, i.e., M + K, and the DPS scheme achieves the diversity gain of M + 1, where M This work was presented in part at the IEEE Int.

show abstract

“…For example, Kuang-Hao Liu has investigated a battery-aware relay selection scheme, which is called BARS, for energy harvesting (EH) relays with finite energy storage [13]. It takes into account both channel state information and battery status in choosing the cooperating relay.…”

Section: Introductionmentioning

confidence: 99%

Power allocation and relay selection for energy efficient cooperation in wireless sensor networks with energy harvesting

Yin

Liu

2017

J Wireless Com Network

View full text Add to dashboard Cite

In this paper, we investigate a joint power allocation and relay selection scheme for energy efficient cooperation in energy harvesting-wireless sensor networks (EH-WSN). We mainly propose a simple heuristic algorithm to improve the energy efficiency of each node in a clustering based EH-WSN. First, the effect of cooperative communication is evaluated, and then, the energy sustainability of every node is taken into account, finally, we formulate an online optimization problem which can be solved near optimally with low computational complexity. Extensive simulation results are presented to show the outstanding performance of our proposed scheme in nodes' transmitting power allocation and average working utility. Therefore, this joint optimization algorithm has a promising future in real applications.

show abstract

Performance Analysis of Relay Selection for Cooperative Relays Based on Wireless Power Transfer With Finite Energy Storage

Cited by 64 publications

References 31 publications

Full-duplex distributed switch-and-stay networks with wireless energy harvesting: design and outage analysis

Full-duplex distributed switch-and-stay networks with wireless energy harvesting: design and outage analysis

Exploiting Direct Links in Multiuser Multirelay SWIPT Cooperative Networks With Opportunistic Scheduling

Power allocation and relay selection for energy efficient cooperation in wireless sensor networks with energy harvesting

Contact Info

Product

Resources

About