Performance Analysis of Hop-by-Hop Beamforming for Dual-Hop MIMO AF Relay Networks

Amarasuriya,; Tellambura,; Ardakani,

doi:10.1109//tcomm.2012.051012.100594

Cited by 3 publications

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“…and (2, 3, 3, 1) have the same number of total antennas, swapping N S with M R improves the outage probability. For comparison, we have included results for half-duplex hop-by-hop beamforming [33] with two configurations, namely (2, 2, 1, 1) and (2, 3, 3, 1) and γ T = 2 2R0 − 1. These results can be compared for example with (2, 2, 1, 1) full-duplex operation and refer to the so called "RF chain preserved" condition and the "number of antenna preserved" (at the relay) condition.…”

Section: Numerical Resultsmentioning

confidence: 99%

“…in(23) in conjunction with H RD 2 The required cdf of the e2e SNR can be derived by adopting a similar approach as in[33, Appendix I]. Specifically, we can express the cdf of γ as F γ (γ T ) = PrγSRγRD γSR+γRD+1 < γ T = 1− ∞ 0 FγRD (γT +y+1)γT y f γSR (γ T +y)dy, where FγRD (x) is the complementary cdf of γ RD , and f γSR (x) April 20, 2018 DRAFT is the probability density function (pdf) of γ SR , with γ SR = P S DH SR and γ RD = P R H SR 2 2…”

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confidence: 99%

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Low-Complexity End-to-End Performance Optimization in MIMO Full-Duplex Relay Systems

Suraweera

Krikidis

Zheng

et al. 2014

IEEE Trans. Wireless Commun.

253

209

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In this paper, we deal with the deployment of full-duplex relaying in amplify-and-forward (AF) cooperative networks with multiple-antenna terminals. In contrast to previous studies, which focus on the spatial mitigation of the loopback interference (LI) at the relay node, a joint precoding/decoding design that maximizes the end-to-end (e2e) performance is investigated. The proposed precoding incorporates rank-1 zero-forcing (ZF) LI suppression at the relay node and is derived in closed-form by solving appropriate optimization problems. In order to further reduce system complexity, the antenna selection (AS) problem for full-duplex AF cooperative systems is discussed. We investigate different AS schemes to select a single transmit antenna at both the source and the relay, as well as a single receive antenna at both the relay and the destination. To facilitate comparison, exact outage probability expressions and asymptotic approximations of the proposed AS schemes are provided. In order to overcome zerodiversity effects associated with the AS operation, a simple power allocation scheme at the relay node is also investigated and its optimal value is analytically derived. Numerical and simulation results show that the joint ZF-based precoding significantly improves e2e performance, while AS schemes are efficient solutions for scenarios with strict computational constraints. Index TermsMIMO relay networks, full-duplex relaying, precoding, antenna selection, outage probability. H. A. Suraweera is with the

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Section: Numerical Resultsmentioning

confidence: 99%

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confidence: 99%

Low-Complexity End-to-End Performance Optimization in MIMO Full-Duplex Relay Systems

Suraweera

Krikidis

Zheng

et al. 2014

IEEE Trans. Wireless Commun.

253

209

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Outage Analysis of Transmit Beamforming and Relay Selection with Outdated Channel Estimates over Nakagami-m Fading Channels

Wang

Cai

Zhang

et al. 2015

International Journal of Distributed Sensor Networks

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We investigate the joint effects of feedback delay and channel estimation errors (CEE) over Nakagami-fading channels for two-hop amplify-and-forward (AF) relaying systems with transmit beamforming (TB) and relay selection (RS). We derive new closed-form expressions for the system outage performance including the exact analysis and informative high SNR asymptotic approximations, which indicate that TB feedback delay reduces the achievable diversity order to one, regardless of Nakagamifading parameters. Whereas RS delay reduces the diversity order to a case without relay selection and CEE merely result in coding gain loss, numerical results verify the theoretical analysis and illustrate that the outage performance is more sensitive to the TB feedback delay.

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Joint TAS and Power Allocation for SDF Relaying M2M Cooperative Networks

Zhang

Wang

2016

Mathematical Problems in Engineering

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The outage probability (OP) performance of multiple-relay-based selective decode-and-forward (SDF) relaying mobile-to-mobile (M2M) networks with transmit antenna selection (TAS) overN-Nakagami fading channels is investigated. The exact closed-form expressions for OP of the optimal and suboptimal TAS schemes are derived. The power allocation problem is formulated for performance optimization. Then, the OP performance under different conditions is evaluated through numerical simulations to verify the analysis. The simulation results showed that optimal TAS scheme has a better OP performance than suboptimal TAS scheme. Further, the power allocation parameter has an important influence on the OP performance.

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Performance Analysis of Hop-by-Hop Beamforming for Dual-Hop MIMO AF Relay Networks

Cited by 3 publications

References 0 publications

Low-Complexity End-to-End Performance Optimization in MIMO Full-Duplex Relay Systems

Low-Complexity End-to-End Performance Optimization in MIMO Full-Duplex Relay Systems

Outage Analysis of Transmit Beamforming and Relay Selection with Outdated Channel Estimates over Nakagami-m Fading Channels

Joint TAS and Power Allocation for SDF Relaying M2M Cooperative Networks

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