Joint Relay Selection and Power Allocation for Two-Way Relaying with Physical Layer Network Coding

Phu, Thinh; Wang, Jin Soo; Song, Iickho; Kim, Yun Hee

doi:10.1109/lcomm.2013.122013.122134

Cited by 49 publications

(37 citation statements)

References 12 publications

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“…Figure 6 shows the SEP performance of the BF-RS scheme with the proposed IPA scheme. The results of the EPA and OPA [9] are also provided for comparison purposes. It can be observed that the SEP curves of the proposed IPA scheme are very close to the SEP curves of the EPA scheme.…”

Section: Analytical Resultsmentioning

confidence: 99%

“…For the case that the relays and sources are wire-powered, the total power constraint is usually adopted. In [9], an optimal power allocation scheme (OPA) have been proposed to achieve the better SEP performance. However, for the case that the relays and sources are battery-powered, we need to consider individual transmission power constraints, i.e., 0 ≤ P 1 , P 2 , P r ≤ P. Thus, in this section, we propose an individual PA (IPA) scheme under the individual transmission power constraints.…”

Section: Transmit Power Allocationmentioning

confidence: 99%

“…In other words, the individual analysis of either the transmission schemes or the RS schemes has been well investigated, but a best combination of the transmission and RS schemes under a certain performance criterion is not known, especially in asymmetrical multi-antenna two-way relay systems. In addition, it is proved that an opportunistic RS scheme with low complexity can achieve better performance than a fully distributed two-way relay scheme [7] and it is shown that the DF protocol outperforms the AF protocol in terms of symbol error probability (SEP) performance [9]. With the demand of reliable transmissions, combining the best known techniques in multiple-antenna two-way relay systems would lead us to the best joint scheme; however, its performance is not known yet.…”

Section: Introductionmentioning

confidence: 99%

“…Talwar et al [12] presented an optimal joint RS and PA scheme to maximize the worst received signal-to-noise ratio (SNR) in AF two-way relay systems. Do et al [9] proposed a joint relay selection and PA scheme to improve the SEP performance in a two-way relay system with the DF protocol. To the best of our knowledge, all these works are based on the total transmission power constraint.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Performance analysis of joint relay selection and transmission schemes in multiple-antenna two-way relay systems

Chen

Wang²,

Yang

2015

J Wireless Com Network

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In this paper, we consider a two-way relay system with two multi-antenna sources and multiple single-antenna relays and study the performances for various transmission schemes with the assumption that perfect channel state information (CSI) is available at both the sources and the relays. Although a transmission scheme that combines source beamforming and relay selection (BF-RS) is known to improve a system performance, its performance has not been theoretically analyzed yet. In the paper, we focus on the performance analysis in terms of the symbol error probability (SEP) for the BF-RS scheme. The analytical upper and lower bounds of the end-to-end system SEP are derived in the closed form, and the asymptotic SEP expression is given in high SNR regime. By both analytical and simulation results, it is clearly shown that a full transmit and relay selection diversity gain can be achieved without code rate loss. The SEP curves from simulations show that our derived bounds can predict the performance accurately. Based on the derived analytical results, we propose an individual power allocation (IPA) scheme to save the total transmit power. We show that the IPA scheme can result in considerable energy saving with a comparable SEP performance.

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Section: Analytical Resultsmentioning

confidence: 99%

Section: Transmit Power Allocationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Performance analysis of joint relay selection and transmission schemes in multiple-antenna two-way relay systems

Chen

Wang²,

Yang

2015

J Wireless Com Network

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“…In [11], the authors proposed a joint relay selection and power allocation scheme to maximize the minimum received SNRs of the two users under a total transmit power budget. In [12], another joint relay selection and power allocation scheme is proposed to minimize the symbol error probability (SEP). There are other schemes that minimize the outage probability or the total power, or maximize the sum rate [13], [14].…”

Section: A Cooperative Protocols For Two-way Relay Networkmentioning

confidence: 99%

Joint Source-Channel Coding of JPEG 2000 Image Transmission Over Two-Way Multi-Relay Networks

Liang

2017

IEEE Trans. on Image Process.

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Abstract-In this paper, we develop a two-way multi-relay scheme for JPEG 2000 image transmission. We adopt a modified time-division broadcast (TDBC) cooperative protocol, and derive its power allocation and relay selection under a fairness constraint. The symbol error probability of the optimal system configuration is then derived. After that, a joint source-channel coding (JSCC) problem is formulated to find the optimal number of JPEG 2000 quality layers for the image and the number of channel coding packets for each JPEG 2000 codeblock that can minimize the reconstructed image distortion for the two users, subject to a rate constraint. Two fast algorithms based on dynamic programming (DP) and branch and bound (BB) are then developed. Simulation demonstrates that the proposed JSCC scheme achieves better performance and lower complexity than other similar transmission systems.

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A nonorthogonal cooperative scheme for multiuser CRN using probabilistic interference constraint

Ahmed

Ali

Naeem

et al. 2019

Trans Emerging Tel Tech

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The predicted exponential increase in data traffic for future 5G networks demands for increased wireless spectrum capacity. The unlicensed spectrum bands are overburdened, whereas the licensed spectrum bands are underutilized. Cognitive radio systems (CRSs) can solve the problem of spectrum scarcity by allowing the reuse of the underutilized licensed spectrum bands. However, efficient resource allocation schemes in CRS are inevitable before we can reap the benefits of CRS. In this article, we have formulated an optimization problem for multiuser cooperative CRS, which considers relay selection and power allocation to maximize the sum capacity of the system. The optimization problem is a mixed‐integer nonlinear program, and deriving its optimal solution is extremely difficult. Therefore, we propose an iterative joint multiple relay selection and power allocation (IJRSPA) algorithm for multiuser CRSs. The proposed IJRSPA has low computational complexity, and simulation results verify its effectiveness.

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Joint Relay Selection and Power Allocation for Two-Way Relaying with Physical Layer Network Coding

Cited by 49 publications

References 12 publications

Performance analysis of joint relay selection and transmission schemes in multiple-antenna two-way relay systems

Performance analysis of joint relay selection and transmission schemes in multiple-antenna two-way relay systems

Joint Source-Channel Coding of JPEG 2000 Image Transmission Over Two-Way Multi-Relay Networks

A nonorthogonal cooperative scheme for multiuser CRN using probabilistic interference constraint

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