Achievable Rate-Energy Region in Two-Way Decode-and-Forward Energy Harvesting Relay Systems

In, Changdon; Kim, Hyung-Myung; Choi, Wan

doi:10.1109/tcomm.2019.2901783

Cited by 26 publications

(18 citation statements)

References 29 publications

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“…In (21) the two terms in 'min' are functions of σ Q 2 , which are defined as I 1 (σ Q 2 ) and I 2 (σ Q 2 ), respectively. Based on (22) and (23), it is shown that I 1 (σ Q 2 ) is a monotonically decreasing function and…”

Section: Swipt-based Half-duplex Qf Cooperation Over Awgn Channelsmentioning

confidence: 99%

Achievable rate analysis and maximisation for the SWIPT‐based half‐duplex quantise‐and‐forward cooperation in IoT networks

et al. 2020

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To achieve reliable and green communication in the internet of things (IoT) networks, the authors extend the traditional half-duplex quantise-and-forward (QF) cooperation into the simultaneous wireless information and power transfer (SWIPT) regime. This study investigates the achievable rate of the SWIPT-based half-duplex QF cooperation with the channel state information available only at the receivers. The source and destination are provided by the external power supply and the relay simultaneously implements the information transmission and the energy harvesting by SWIPT technology with the powersplitting protocol. The achievable rate of the proposed system over the additive white Gaussian noise channels is analysed and further maximised by optimising the power-splitting factor. Furthermore, the expected rate of the proposed system over the slowfading channels is analysed. Theoretical analysis and simulation results show that the achievable rate or expected rate of the SWIPT-based QF cooperation is obviously superior to that of the SWIPT-based amplify-and-forward or SWIPT-based decodeand-forward cooperation. Meanwhile, the SWIPT-based QF cooperation can achieve similar performance to the traditional QF cooperation when the external power supply at the relay is not provided.

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Section: Swipt-based Half-duplex Qf Cooperation Over Awgn Channelsmentioning

confidence: 99%

Achievable rate analysis and maximisation for the SWIPT‐based half‐duplex quantise‐and‐forward cooperation in IoT networks

et al. 2020

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“…Nowadays, energy harvesting (EH) emerges as a promising technique to deal with the scarcity of energy resources and prolong the lifetime of wireless networks, especially in hazardous environments where replacing or recharging batteries is infeasible or costly for sensors embedded inside the human body or in building structures, as well as wireless mobile devices that are not easily accessible [1]- [4]. Differing from the conventional EH from solar, wind, vibration and thermoelectric effects [5], [6], a new emerging…”

Section: Introductionmentioning

confidence: 99%

Security Performance Analysis for Best Relay Selection in Energy-Harvesting Cooperative Communication Networks

et al. 2020

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In this paper, we investigate an energy-harvesting cooperative communication network, which comprises of a source, a destination, and multiple decode-and-forward (DF) relays in the presence of multiple passive eavesdropper (Es). Es attempt to intercept confidential information transmissions from the source to destination via DF relays. In this network, all the DF relays harvest energy from radio-frequency (RF) signals of a source through time-switching receivers. In order to improve the physical layer security of energyharvesting cooperative communication networks, we propose a best relay selection (BRS) scheme, where the ''best'' relay is chosen to assist the source-destination transmission. For the purpose of comparison, we consider the classic direct transmission (DT) and equal relay selection (ERS) as benchmark schemes. We derive the exact closed-form expressions of outage probability (OP) and intercept probability (IP) for the ERS and BRS schemes over Rayleigh fading channels. Besides, the security-reliability tradeoff (SRT) is analyzed as a metric to evaluate the tradeoff performance of the proposed BRS scheme. Numerical results show that the SRT of the BRS scheme consistently outperforms that of the ERS scheme, which demonstrates the advantage of our proposed scheme against eavesdroppers. Besides, it is verified that total error rate (TER) defined as the sum of OP and IP can be minimized for both the ERS and BRS schemes through changing the time allocation factor between information transmission and energy harvesting phases. Moreover, there is a best energy conversation efficiency to obtain a maximal SRT value of the ERS and BRS schemes. In addition, as the number of DF relays increases, the SRT of BRS scheme improves notably, while that of ERS scheme remains unchanged. And as the number of Es increases, the SRT of both the ERS and BRS schemes become worse. INDEX TERMS Cooperative communication, physical layer security, best relay selection (BRS), outage probability (OP), intercept probability (IP), security-reliability tradeoff (SRT).

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“…In the works [19][20], the authors investigated the S-DF relaying network over Rayleigh flat fading channel. In [19], the authors investigated the pairwise error probability (PEP) performance of the S-DF relaying network over Rayleigh flat fading channel considering the ideal channel conditions.…”

Section: Introductionmentioning

confidence: 99%

“…In S-DF relaying network, relay forward only correctly decoded signal otherwise it will remain idle. Moreover, the network connectivity and data transmission rate of S-DF relaying can be further increased by using multipleinput multiple-output (MIMO) in conjunction with space-time block-code (STBC) [18].In the works [19][20], the authors investigated the S-DF relaying network over Rayleigh flat fading channel. In [19], the authors investigated the pairwise error probability (PEP) performance of the S-DF relaying network over Rayleigh flat fading channel considering the ideal channel conditions.…”

mentioning

confidence: 99%

Analysis of Selective-Decode and Forward Relaying Protocol over k-µ Fading Channel Distribution

Shankar¹,

Bhardwaj²,

Mishra³

2020

JTIT

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In this work, we examine the performance of selective-decode and forward (S-DF) relay systems over κ-µ fading channel condition. We discuss about the probability density function (PDF), system model, and cumulative distribution function (CDF) of κ-µ distributed envelope and signal to noise ratio (SNR) and the techniques to generate samples that follow κ-µ distribution. Specifically, we consider the case where the source-torelay (S→R), relay-to-destination (R→D) and source-to-destination (S→D) link is subject to the independent and identically distributed (i.i.d.) κ-µ fading. From the simulation results, the enhancement in the symbol error rate (SER) with a stronger line of sight (LOS) component is observed. This shows that S-DF relaying systems can perform well even in the non-fading or LOS conditions. Monte Carlo simulations are conducted for various values of fading parameters and the outcomes closely match with theoretical outcomes which validate the derivations.Keywords: multiple input multiple output, selective decode and forward, symbol error rate, channel fading, relaying protocol, signal to noise ratio, channel state information. IntroductionThe 5 th generation (5G) wireless communication systems will require a major paradigm shift to meet the increasing demand for reliable connectivity through high data rates, low latency, better energy efficiency, and Femto cell-based relays [1][2][3]. These relay nodes are equipped with energy harvesting (EH) techniques in the relaying network to improve energy efficiency. Cooperative communication is the natural choice for 5G wireless communication system, and it is adopted in 3 rd generation partnership project (3GPP), universal mobile telecommunications service (UMTS), long term evolution (LTE)-Advanced and IEEE 802.11 because the nodes in the cooperative communication network can share their resources with each other during the signal transmission [4][5][6]. Also, it is incorporated into numerous 5G wireless applications, such as machine-to-machine (M2M), device-to-device (D2D), cognitive radio (CR), high speed terrestrial network (HSTN) & free space optical (FSO) communication [7][8][9][10].Relay-assisted cooperation is the first step towards the 5G system that is expected to deliver up to 20Gbps in downlink (D/L) and 10Gbps in uplink (U/L) will be benchmarked by network operators during initial rollouts in the next few years [11][12]. The relay infrastructure does not need wired network connection, thus offering a reduction in the backhaul costs of the operator. Through the additional cooperative diversity inherent in such wireless systems, cooperative wireless communication significantly improves end-to-end reliability. If the direct source-to-destination (SD) channel is in a deep fade, the main advantage of the cooperative communication is that the destination node can still receive the source signal via the relay node.According to the signal receiving and transmitting, there are two basic methods of relaying: analog & digital. Analog relaying is also called no...

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Achievable Rate-Energy Region in Two-Way Decode-and-Forward Energy Harvesting Relay Systems

Cited by 26 publications

References 29 publications

Achievable rate analysis and maximisation for the SWIPT‐based half‐duplex quantise‐and‐forward cooperation in IoT networks

Achievable rate analysis and maximisation for the SWIPT‐based half‐duplex quantise‐and‐forward cooperation in IoT networks

Security Performance Analysis for Best Relay Selection in Energy-Harvesting Cooperative Communication Networks

Analysis of Selective-Decode and Forward Relaying Protocol over k-µ Fading Channel Distribution

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