Two-Way Amplify-and-Forward Multiple-Input Multiple-Output Relay Networks with Antenna Selection

Amarasuriya, Gayan; Tellambura, Chintha; Ardakani, Masoud

doi:10.1109/jsac.2012.120919

Cited by 95 publications

(64 citation statements)

References 25 publications

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“…As another category of MIMO systems with a single transmit RF chain, the optimal antenna selection (OAS) system has been widely investigated and introduced into TWRC transmission [56], [59]. In this section, we compare the performance of the proposed FD-TWRC-SM system with that of the FD-TWRC-OAS system.…”

Section: E Comparison With Single Optimal Antenna Selectionmentioning

confidence: 99%

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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Section: E Comparison With Single Optimal Antenna Selectionmentioning

confidence: 99%

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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“…Even performing the power allocation either at source node only or at the relay node only is already difficult. Although the objective function in (17) is simpler than (14), the same challenge remains in the HD two-way relaying problems (17) For ease of reference, we present below the properties that will be frequently used in our solution development.…”

Section: Proposed Solutions For Two-way Relayingmentioning

confidence: 99%

“…Therefore, the objective function in (14) provides a lower bound instantaneous capacity of the network. 3 One should use the obtained solution to compute the objective (14) in order to have the actual throughput performance.…”

Section: Endnotesmentioning

confidence: 99%

“…Two-way relaying strategies [7] have attracted considerable research attention, due to their potential to provide substantially higher spectral efficiency than the conventional one-way relaying counterpart [8][9][10][11][12][13][14][15]. Under the FD two-way relaying, the overall network throughput could further be enhanced by exchanging data in only one time slot as opposed to four in the HD one-way relaying.…”

Section: Introductionmentioning

confidence: 99%

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Joint power allocation for MIMO-OFDM full-duplex relaying communications

Tuan

Ngo

Tam

2017

J Wireless Com Network

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In this paper, we address the problem of joint power allocation in a two-hop MIMO-OFDM network, where two full-duplex users communicate with each other via an amplify-and-forward relay. We consider a general model in which the full-duplex relay can forward the received message in either one-way or two-way mode. Our aim is to maximize the instantaneous end-to-end total throughput, subject to (i) the separate sum-power constraints at individual nodes or (ii) the joint sum-power constraint of the whole network. The formulated problems are large-scale nonconvex optimization problems, for which efficient and optimal solutions are currently not available. Using the successive convex approximation approach, we develop novel iterative algorithms of extremely low complexity which are especially suitable for large-scale computation. In each iteration, a simple closed-form solution is derived for the approximated convex program. The proposed algorithms guarantee to converge to at least a local optimum of the nonconvex problems. Numerical results verify that the devised solutions converge quickly, and that our optimal power allocation schemes significantly improve the throughput of MIMO-OFDM full-duplex one-way/two-way relaying over the conventional half-duplex relaying strategy.

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“…However, due to the presence of severe inter-channel interference between cells, we need to employ techniques, such as coordinated multi-point (CoMP) [26] and multiple-input multiple-output (MIMO) [27,28], to build effective multicell joint dynamic resource allocation and collaborative wireless processing mechanisms.…”

Section: Dynamic Resource Allocation and Collaborative Radio Processingmentioning

confidence: 99%

Cloud-based Wireless Network: Virtualized, Reconfigurable, Smart Wireless Network to Enable 5G Technologies

et al. 2015

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In recent years, information communication and computation technologies are deeply converging, and various wireless access technologies have been successful in deployment. It can be predicted that the upcoming fifthgeneration mobile communication technology (5G) can no longer be defined by a single business model or a typical technical characteristic. 5G is a multi-service and multitechnology integrated network, meeting the future needs of a wide range of big data and the rapid development of numerous businesses, and enhancing the user experience by providing smart and customized services. In this paper, we propose a cloud-based wireless network architecture with four components, i.e., mobile cloud, cloud-based radio access network (Cloud RAN), reconfigurable network and big data centre, which is capable of providing a virtualized, reconfigurable, smart wireless network.

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Two-Way Amplify-and-Forward Multiple-Input Multiple-Output Relay Networks with Antenna Selection

Cited by 95 publications

References 25 publications

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

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

Joint power allocation for MIMO-OFDM full-duplex relaying communications

Cloud-based Wireless Network: Virtualized, Reconfigurable, Smart Wireless Network to Enable 5G Technologies

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