Relay Selection for Two-Way Full Duplex Relay Networks With Amplify-and-Forward Protocol

Cui, Hongyu; Ma, Meng; Song, Lingyang; Jiao, Bingli

doi:10.1109/twc.2014.2322607

Cited by 200 publications

(98 citation statements)

References 23 publications

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“…The residual self-interference, after self-cancellation, is typically modeled as a zero-mean Gaussian random variable [33], [34]. The residual self-interference at node i is e i = √ P ihi,i x i , whereh i,i is the residual interference channel coefficient after self-cancellation at node i, and…”

Section: A Full-duplex and Self-interference Cancellationmentioning

confidence: 99%

Energy Efficiency Maximization of Full-Duplex Two-Way Relay With Non-Ideal Power Amplifiers and Non-Negligible Circuit Power

Cui

Zhang

et al. 2017

IEEE Trans. Wireless Commun.

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Abstract-In this paper, we maximize the energy efficiency (EE) of full-duplex (FD) two-way relay (TWR) systems under non-ideal power amplifiers (PAs) and non-negligible transmission-dependent circuit power. We start with the case where only the relay operates full duplex and two timeslots are required for TWR. Then, we extend to the advanced case, where the relay and the two nodes all operate full duplex, and accomplish TWR in a single timeslot. In both cases, we establish the intrinsic connections between the optimal transmit powers and durations, based on which the original non-convex EE maximization can be convexified and optimally solved. Simulations show the superiority of FD-TWR in terms of EE, especially when traffic demand is high. The simulations also reveal that the maximum EE of FD-TWR is more sensitive to the PA efficiency, than it is to self-cancellation. The full FD design of FD-TWR is susceptible to traffic imbalance, while the design with only the relay operating in the FD mode exhibits strong tolerance.Index Terms-Energy efficiency, full-duplex, non-ideal power amplifier, non-negligible circuit power, two-way relay.

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Section: A Full-duplex and Self-interference Cancellationmentioning

confidence: 99%

Energy Efficiency Maximization of Full-Duplex Two-Way Relay With Non-Ideal Power Amplifiers and Non-Negligible Circuit Power

Cui

Zhang

et al. 2017

IEEE Trans. Wireless Commun.

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“…We consider a FD-TWRC-SM with DF relaying protocol at the relay node that is similar to the TWRC with the FD relaying in [38]. As shown in Fig.…”

Section: System Model Of Fd-twrc-smmentioning

confidence: 99%

“…(10)- (17) and following the steps of proving Proposition 2, we have the following asymptotic ABEP of FD-TWRC-SM with unequal average SNRs at the nodes. ABEP 1r,FD,PA and ABEP r2,FD,PA are respectively computed by (37) and (38), where…”

Section: +Fmentioning

confidence: 99%

“…However, the optimal PA factor is difficult to derived in a closed form based on (37) and (38). In order to derive the optimal power allocation factor F , the following upper bound on L 1 (F ) and L 2 (F ) are employed.…”

Section: Proof Of Propositionmentioning

confidence: 99%

“…The impact of SI on the two-way relay channel (TWRC) with a FD relay, which is a spectral-efficient transmission protocol for wireless networks, has been investigated in [33]- [38]. It is shown that when SI is weak enough, the TWRC with the FD relay achieves a higher spectral efficiency than the TWRC with the HD relay.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

On the Performance of Full-Duplex Two-Way Relay Channels With Spatial Modulation

Zhang

Kim

et al. 2016

IEEE Trans. Commun.

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Abstract-In this paper, the spatial modulation (SM) technique is employed at the source and relay nodes in a full-duplex twoway relay channel (FD-TWRC) to support spectral-efficient bidirectional communications while guaranteeing a low cost implementation. Maximum likelihood (ML) detectors are employed at each node that is subject to an intrinsic self-loop interference (SI). We first propose a tight upper bound on the average bit error probability (ABEP). Then based on the ABEP upper bound, an asymptotic ABEP expression is derived in the high SNR regime. Exploiting the asymptotic ABEP, an exact SNR threshold for the selection between FD-TWRC-SM and half-duplex (HD)-TWRC-SM is derived in a closed form, which sheds light on when it is beneficial to select the FD (or HD) mode. In addition, the power allocation (PA) among sources and relay is investigated, through which an optimal PA factor in terms of ABEP is obtained. All analytical results derived in this paper are verified by Monte Carlo simulations, from which some new insights are obtained on the performance of FD-TWRC-SM.

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Maximum harvested energy policy in full‐duplex relaying networks with SWIPT

Nguyen

2017

Int J Communication

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Summary It is considered that energy scavenging is a promising way for source node transfer energy to powered constraint relay in cooperative networks with advantage of cost‐effective maintenance and flexible deployment, which so‐called simultaneous wireless information and power transfer. In this paper, relay selection for optimal wireless energy is investigated. In terms of time switching–based relaying, this paper considers the performance comparison of 3 proposed relay selection schemes, namely, (1) optimal relay selection scheme, (2) maximum harvested energy relay selection scheme, and (3) minimum self‐interference relay selection. In particular, the system performance is studied intensively with regard to outage probability and throughput over Rayleigh fading channels. We also achieve the integral form for accurate expressions and closed form for approximate expressions. Finally, these analytical expressions are proved exactness according to Monte Carlo simulation.

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Relay Selection for Two-Way Full Duplex Relay Networks With Amplify-and-Forward Protocol

Cited by 200 publications

References 23 publications

Energy Efficiency Maximization of Full-Duplex Two-Way Relay With Non-Ideal Power Amplifiers and Non-Negligible Circuit Power

Energy Efficiency Maximization of Full-Duplex Two-Way Relay With Non-Ideal Power Amplifiers and Non-Negligible Circuit Power

On the Performance of Full-Duplex Two-Way Relay Channels With Spatial Modulation

Maximum harvested energy policy in full‐duplex relaying networks with SWIPT

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