Joint source‐pair and relay selection for relay‐assisted network

Özduran, Volkan

doi:10.1049/iet-com.2020.0042

Cited by 3 publications

(3 citation statements)

References 48 publications

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“…It is expected that the number of connected IoT users will reach approximately 50 billion in 2020 [2]. Recently, relay technique has been introduced into IoT networks to assist a long-distance transmission and ensure uninterrupted communication [3,4]. However, there are two critical issues in implementing relay-aided IoT networks deployment, one of which is the energy supply limitation [5], that is, the relay nodes have limited battery reserves.…”

Section: Introductionmentioning

confidence: 99%

Beamforming design for MIMO full‐duplex SWIPT IoT system under imperfect CSI

Liú

Ling

et al. 2021

IET Communications

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This paper proposes a multiple-input multiple-output full-duplex relay Internet of Things system under imperfect channel state information, where the relay uses time switching relaying protocol to harvest energy. Particularly, due to the uncertainty channel circumstance, the self-interference in full-duplex relay cannot be eliminated completely. For such a system, a joint source-relay beamforming optimization problem which maximizes the system achievable rate subject to the transmit power and harvested energy constraints is studied. In light of the intractability of the problem, a singular value decomposition based geometric programming algorithm is investigated. The considered problem is reformulated to a diagonalized form by using singular value decomposition method. Then, the geometric programming algorithm is adopted to obtain the optimal solution for the reformulated problem. Numerical results validate the effectiveness and superiority of the proposed optimization scheme.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Section: Introductionmentioning

confidence: 99%

Beamforming design for MIMO full‐duplex SWIPT IoT system under imperfect CSI

Liú

Ling

et al. 2021

IET Communications

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“…Ozduran et al [18] extended [16, 17] by considering more realistic scenario that the CSI is imperfect because of the channel estimation error (CEE) and feed‐back delay. Ozduran [19] extended [16, 17] by assuming that system model contains multiple relay instead of a single relay. Ozduran [19] also utilised the same user‐pair selection strategy as [16, 17] and adopted it to the multi‐user and multiple bi‐directional relaying system model.…”

Section: Introductionmentioning

confidence: 99%

“…Ozduran [19] extended [16, 17] by assuming that system model contains multiple relay instead of a single relay. Ozduran [19] also utilised the same user‐pair selection strategy as [16, 17] and adopted it to the multi‐user and multiple bi‐directional relaying system model.…”

Section: Introductionmentioning

confidence: 99%

Multi‐user two‐way relaying in the presence of co‐channel interference

Özduran

Soleimani‐Nasab

2020

IET Communications

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This study investigates the impact of co‐channel interference caused by external terminals on multi‐user bi‐directional amplify‐and‐forward based wireless relaying network. The investigation considers multi‐user pair and a single bi‐directional relay terminal and a finite number of co‐channel interference in the system model. A lower bound on the end‐to‐end outage probability is derived for the simultaneous transmission and the opportunistic source‐pair selection strategy. According to analytical, asymptotic, and Monte‐Carlo based computer simulation results, the opportunistic source‐pair selection strategy achieves a near‐optimal performance for the inter‐cell interference caused by other user‐pairs within the system. Results also show that the opportunistic source‐pair selection strategy also achieves optimal diversity order, which is equal to N, in high signal‐to‐noise ratio regimes. Results also show that the co‐channel interference degrades the achievable diversity order from N to 0 while also affecting the system coding gain.

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Normalized Successive Interference Cancellation for Power-Domain Non-orthogonal Multiple Access

Özduran

2021

Wireless Pers Commun

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Joint source‐pair and relay selection for relay‐assisted network

Cited by 3 publications

References 48 publications

Beamforming design for MIMO full‐duplex SWIPT IoT system under imperfect CSI

Beamforming design for MIMO full‐duplex SWIPT IoT system under imperfect CSI

Multi‐user two‐way relaying in the presence of co‐channel interference

Normalized Successive Interference Cancellation for Power-Domain Non-orthogonal Multiple Access

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