Network-Coded Two-Way Relaying in Spectrum-Sharing Systems With Quality-of-Service Requirements

Hatamnia, Sajad; Vahidian, Saeed; Aı̈ssa, Sonia; Champagne, Benoı̂t; Ahmadian-Attari, Mahmoud

doi:10.1109/tvt.2016.2558600

Cited by 29 publications

(25 citation statements)

References 40 publications

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“…As previously mentioned, the retransmission process is based on an ACK/NACK mechanism, in which shortlength error-free packets are broadcasted by the destination D over a separate narrow-band channel, in order to inform the source and the relay nodes of that reception QoS status. In the second time slot, if necessary, i.e., if the rate of the source-destination channel falls below R, the best relay processes the received signal using the DF protocol [43,44], whereby a copy of the original source message is generated and transmitted again to the destination.…”

Section: System Modelmentioning

confidence: 99%

On the Security Analysis of a Cooperative Incremental Relaying Protocol in the Presence of an Active Eavesdropper

2019

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Physical layer security offers an efficient means to decrease the risk of confidential information leakage through wiretap links. In this paper, we address the physical-layer security in a cooperative wireless subnetwork that includes a source-destination pair and multiple relays, exchanging information in the presence of a malevolent eavesdropper. Specifically, the eavesdropper is active in the network and transmits artificial noise (AN) with a multiple-antenna transmitter to confound both the relays and the destination. We first analyse the secrecy capacity of the direct source-to-destination transmission in terms of intercept probability (IP) and secrecy outage probability (SOP). A decode-andforward incremental relaying (IR) protocol is then introduced to improve reliability and security of communications in the presence of the active eavesdropper. Within this context, and depending on the availability of channel state information, three different schemes (one optimal and two sub-optimal) are proposed to select a trusted relay to improve the achievable secrecy rate. For each one of these schemes, and for both selection and maximum ratio combining at the destination and eavesdropper, we derive new and exact closed-form expressions for the IP and SOP. Our analysis and simulation results demonstrate the superior performance of the proposed IR-based selection schemes for secure communication. They also confirm the existence of a floor phenomenon for the SOP in the absence of AN.Artificial noise, incremental relaying, network, physical-layer security.S. Vahidian is with the

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Section: System Modelmentioning

confidence: 99%

On the Security Analysis of a Cooperative Incremental Relaying Protocol in the Presence of an Active Eavesdropper

2019

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“…A comprehensive survey toward using network coding in CRN has been newly provided in Naeem et al Increase throughput, spectrum efficiency, security, and increase outage probability are some of the advantages of using network coding in CRN mentioned in this survey. Specifically, physical layer network coding (PLNC) providing lower bit error rate and higher throughput drew the attention of many researchers as a good candidate for future wireless cellular networks . The basic idea of PLNC is extracting a network coded signal from a superimposed signal with the goal of trading computation for throughput .…”

Section: Introductionmentioning

confidence: 99%

“…Receiving the network code, each node with the knowledge of its own information can extract the information of the other node (for example, X B = X R ⊕ X A ). Performance of PLNC in CRN has been studied in previous studies from different perspectives. For example, Hatamnia et al studied PLNC in CRN considering quality of service requirements and Alnabelsi et al used PLNC in CRN to recover the packets and for multiple access (MA) to the same channel, simultaneously.…”

Section: Introductionmentioning

confidence: 99%

“…Performance of PLNC in CRN has been studied in previous studies from different perspectives. For example, Hatamnia et al studied PLNC in CRN considering quality of service requirements and Alnabelsi et al used PLNC in CRN to recover the packets and for multiple access (MA) to the same channel, simultaneously. In Xu et al, a cooperative model based on PLNC is proposed to increment the throughput of the system and reduce the transmission time.…”

Section: Introductionmentioning

confidence: 99%

“…Receiving the network code, each node with the knowledge of its own information can extract the information of the other node (for example, X B = X R ⊕ X A ). Performance of PLNC in CRN has been studied in previous studies 10,[16][17][18][19][20] 22 However, in these recent works, 2 different PUs coverage areas with 2 separate orthogonal frequency sets are considered, where SUs in each area operate on the frequency range of the opposite area.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Achieving maximum bit rate in a cognitive radio network with physical layer network coding

Khosroazad

Abedi

Neda

2018

Int J Communication

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Summary In this paper, the power allocation problem in a relay‐assisted cognitive radio network (CRN) is considered where the secondary users exchange information in an interweave mode on the basis of physical layer network coding. In order to enhance the capacity of CRN, using multiple‐input multiple‐output and orthogonal frequency division multiplexing has become very popular in the literature. This paper goes one step further to improve the throughput of secondary users using physical layer network coding by drawing off the transmission time. The main goal is to maximize the capacity of CRN, while keeping the total interference imposed on the primary users under a certain threshold. An optimal solution to this power allocation problem with limited relay power constraint, due to the limited budget, is derived; however, because of the high complexity of this method, an efficient suboptimal solution is also proposed.

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Network Coding-Based Broadcasting Schemes for Cognitive Radio Networks

Zaheer

Rehmani

Othman

2018

Cognitive Radio, Mobile Communications and Wireless Networks

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Network-Coded Two-Way Relaying in Spectrum-Sharing Systems With Quality-of-Service Requirements

Cited by 29 publications

References 40 publications

On the Security Analysis of a Cooperative Incremental Relaying Protocol in the Presence of an Active Eavesdropper

On the Security Analysis of a Cooperative Incremental Relaying Protocol in the Presence of an Active Eavesdropper

Achieving maximum bit rate in a cognitive radio network with physical layer network coding

Network Coding-Based Broadcasting Schemes for Cognitive Radio Networks

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