Buffer‐aided relaying: a survey on relay selection policies

El-Rajab, Mirna; Abou-Rjeily, Chadi; Kfouri, Ronald

doi:10.1049/iet-com.2020.0532

Cited by 10 publications

(8 citation statements)

References 139 publications

(371 reference statements)

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“…1) Relay Selection in Vehicular CR Networks: Due to the inherently dynamic nature of vehicular networks, extensive research efforts have been devoted to developing relay selection mechanisms for CR vehicular networks [14]. In [15], the authors propose a buffer state-based relay selection procedure for cooperative cognitive radio networks (CRNs). The model proposed in [15] reduces the inter-network interference in the secondary (unlicensed) network.…”

Section: A Related Workmentioning

confidence: 99%

“…In [15], the authors propose a buffer state-based relay selection procedure for cooperative cognitive radio networks (CRNs). The model proposed in [15] reduces the inter-network interference in the secondary (unlicensed) network. From a different perspective, the authors in [16] have presented an efficient relay selection scheme to enhance security in V2V wireless communications.…”

Section: A Related Workmentioning

confidence: 99%

“…1) Single eavesdropper scenario: The legitimate channel capacity of the i th SR is given in (15). where n = 0, 1, 2, ...., I is the time instant.…”

Section: Performance Analysis a Initial Wallets Values Evaluationmentioning

confidence: 99%

See 2 more Smart Citations

Reputation-Aware Relay Selection With Opportunistic Spectrum Access: A Blockchain Approach

Ghourab

Bariah

Muhaidat

et al. 2023

IEEE Open J. Veh. Technol.

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The highly dynamic nature of cognitive radio (CR) systems and their stringent latency requirements pose a major challenge in the realization of efficient intelligent transport systems (ITS). In this paper, we investigate relay selection and opportunistic spectrum access in conjunction with blockchain technology in a secure manner. Specifically, we propose a cross-layer method for secure relay selection, where secondary relays (SRs) are granted access to available spectrum bands based on the balance of their respective virtual wallets. These virtual wallets, which are built based on the SRs' secrecy capacity and their behavior in the network, are the predominant factors that allow SRs to participate in an auction model. To quantify the trustworthiness of the SRs, we formulate a mathematical framework to evaluate the trust value of each SR, which is then leveraged for rewarding or penalizing the SR. Furthermore, we develop an offline blockchain framework to store the information of participating relays and make it available for future operations, in order to detect reputable and non-reputable relays in the presence of multiple eavesdroppers. The stored reputations of the participating relays are used to develop a self-learning algorithm to exclude the non-reputable relays from the selection group. Finally, we present thorough numerical results to demonstrate the superiority of the proposed system in terms of security, credibility, and integrity.

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Section: A Related Workmentioning

confidence: 99%

Section: A Related Workmentioning

confidence: 99%

See 1 more Smart Citation

Reputation-Aware Relay Selection With Opportunistic Spectrum Access: A Blockchain Approach

Ghourab

Bariah

Muhaidat

et al. 2023

IEEE Open J. Veh. Technol.

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show abstract

“…However, the main drawback of relay system is the existence of bottleneck link, which limits the performance of the overall communication system. In order to improve the characteristics of the bottleneck link, several methods are proposed, such as selective [6,7], opportunistic [8], multiantenna [9], cooperative [10,11], buffer-aided [12,13] relaying, or some combination of these methods, [14][15][16][17][18][19]. In this paper multi-antenna relaying node is analyzed to overcome the problem of bottleneck link.…”

Section: Introductionmentioning

confidence: 99%

Performance improvements for small-cells with cooperative diversity in Rayleigh/Rice fading environment

Delibasic

2023

Preprint

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The evolution of wireless and mobile networks is moving towards increased number of user devices, higher data rates, lower latency, higher energy efficiency and reliable connectivity. Sensor network nodes, infrastructure-based relays, femto-cell relays, cooperative diversity, etc. are already recognized as relatively simple, but important part of wireless networks that assist in signal transmission and provide improved quality of service. This paper studies performance improvements of two-hop cooperative relay system employing polarization diversity at infrastructure relay station. The obtained results are compared with the basic cooperative relay system, so the level of the achieved improvements can be measured.

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“…Xu et al [16] used buffers and randomness to determine link selection, indicating that different trade-offs between outage probability and average packet delay could be achieved. To avoid ideal assumptions, considering the limited buffer, CSI, and buffer status, various link selection protocols in BASUR system were summarized in [17]. Some of them were analyzed for a specific number of buffer sizes.…”

Section: Introductionmentioning

confidence: 99%

Performance Modeling and Analysis of BASUR-CARQ Protocol Based on Interrelay Interference Cancellation

Zhou

Qian

Song

2023

Wireless Communications and Mobile Computing

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To recover the performance loss of nodes in half-duplex mode, this paper proposes a buffer-aided successive relay protocol based on cooperative automatic repeat request mechanism (BASUR-CARQ). Based on the fact that interrelay interference (IRI) will occur when relay nodes transmit or receive simultaneously, an interference cancellation operator is proposed to determine whether the interference is eliminated to reduce the outage probability. Moreover, a delay model for data frame transmission is proposed based on CARQ mechanism, and a closed-form expression for the average delay is derived. A 6-state discrete-time Markov chain (DTMC) model is developed to obtain the system throughput, and a closed-form expression for the system energy efficiency under M-ary modulation is derived. Finally, the simulation results show that with the setting of parameters that can balance the main performance, the delay performance of BASUR-CARQ protocol is significantly enhanced compared to the traditional protocols, and the throughput of BASUR-CARQ protocol is also optimized at high signal-to-noise ratio (SNR). Meanwhile, the energy efficiency of BASUR-CARQ protocol is significantly improved for the successive relay communication system without interference cancellation technique.

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Buffer‐aided relaying: a survey on relay selection policies

Cited by 10 publications

References 139 publications

Reputation-Aware Relay Selection With Opportunistic Spectrum Access: A Blockchain Approach

Reputation-Aware Relay Selection With Opportunistic Spectrum Access: A Blockchain Approach

Performance improvements for small-cells with cooperative diversity in Rayleigh/Rice fading environment

Performance Modeling and Analysis of BASUR-CARQ Protocol Based on Interrelay Interference Cancellation

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