Power Adaptation in Buffer-Aided Full-Duplex Relay Networks with Statistical CSI

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Power Adaptation in Buffer-Aided Full-Duplex Relay Networks with Statistical CSI. / Nomikos, N.; Charalambous, T.; Vouyioukas, D.; Wichman, R.; Karagiannidis, G. K.

In: IEEE Transactions on Vehicular Technology, Vol. 67, No. 8, 8360521, 08.2018, p. 7846 - 7850.

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@article{d28a125e1f0347a2b28f128877878b1d,
title = "Power Adaptation in Buffer-Aided Full-Duplex Relay Networks with Statistical CSI",
abstract = "In networks with multiple wireless nodes and especially in fast changing environments, the continuous acquisition of Channel State Information (CSI) may become infeasible. In this paper, we study the relay selection problem for a cooperative network, where Full-Duplex (FD) relays are equipped with buffers and only statistical CSI is available at the transmitters (CSIT). For this setting, a novel relay selection algorithm is proposed, named HyQoS, relying only on statistical CSIT and performing power adaptation. HyQoS solves an optimization problem for selecting the optimal set of relays. We consider two optimization approaches: 1) minimization of the total power consumed in the network, and 2) maximization of the throughput per energy unit, while guaranteeing a specific Quality of Service (QoS), in terms of Successful Transmission Probability (STP). The power allocation problem is formulated as a nonlinear optimization one, taking into account inter-relay interference and residual loop interference. Numerical results show that HyQoS can reduce the power expenditure and increase the throughput, by using only statistical CSIT.",
keywords = "High definition video, Interference, Optimization, Quality of service, Relays, Signal to noise ratio, Throughput, Full-duplex relaying, adaptive link selection, buffer-aided relays, power adaptation, statistical CSIT",
author = "N. Nomikos and T. Charalambous and D. Vouyioukas and R. Wichman and Karagiannidis, {G. K.}",
year = "2018",
month = "8",
doi = "10.1109/TVT.2018.2837683",
language = "English",
volume = "67",
pages = "7846 -- 7850",
journal = "IEEE Transactions on Vehicular Technology",
issn = "0018-9545",
number = "8",

}

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TY - JOUR

T1 - Power Adaptation in Buffer-Aided Full-Duplex Relay Networks with Statistical CSI

AU - Nomikos, N.

AU - Charalambous, T.

AU - Vouyioukas, D.

AU - Wichman, R.

AU - Karagiannidis, G. K.

PY - 2018/8

Y1 - 2018/8

N2 - In networks with multiple wireless nodes and especially in fast changing environments, the continuous acquisition of Channel State Information (CSI) may become infeasible. In this paper, we study the relay selection problem for a cooperative network, where Full-Duplex (FD) relays are equipped with buffers and only statistical CSI is available at the transmitters (CSIT). For this setting, a novel relay selection algorithm is proposed, named HyQoS, relying only on statistical CSIT and performing power adaptation. HyQoS solves an optimization problem for selecting the optimal set of relays. We consider two optimization approaches: 1) minimization of the total power consumed in the network, and 2) maximization of the throughput per energy unit, while guaranteeing a specific Quality of Service (QoS), in terms of Successful Transmission Probability (STP). The power allocation problem is formulated as a nonlinear optimization one, taking into account inter-relay interference and residual loop interference. Numerical results show that HyQoS can reduce the power expenditure and increase the throughput, by using only statistical CSIT.

AB - In networks with multiple wireless nodes and especially in fast changing environments, the continuous acquisition of Channel State Information (CSI) may become infeasible. In this paper, we study the relay selection problem for a cooperative network, where Full-Duplex (FD) relays are equipped with buffers and only statistical CSI is available at the transmitters (CSIT). For this setting, a novel relay selection algorithm is proposed, named HyQoS, relying only on statistical CSIT and performing power adaptation. HyQoS solves an optimization problem for selecting the optimal set of relays. We consider two optimization approaches: 1) minimization of the total power consumed in the network, and 2) maximization of the throughput per energy unit, while guaranteeing a specific Quality of Service (QoS), in terms of Successful Transmission Probability (STP). The power allocation problem is formulated as a nonlinear optimization one, taking into account inter-relay interference and residual loop interference. Numerical results show that HyQoS can reduce the power expenditure and increase the throughput, by using only statistical CSIT.

KW - High definition video

KW - Interference

KW - Optimization

KW - Quality of service

KW - Relays

KW - Signal to noise ratio

KW - Throughput

KW - Full-duplex relaying

KW - adaptive link selection

KW - buffer-aided relays

KW - power adaptation

KW - statistical CSIT

U2 - 10.1109/TVT.2018.2837683

DO - 10.1109/TVT.2018.2837683

M3 - Article

VL - 67

SP - 7846

EP - 7850

JO - IEEE Transactions on Vehicular Technology

JF - IEEE Transactions on Vehicular Technology

SN - 0018-9545

IS - 8

M1 - 8360521

ER -

ID: 21414476