On the Spectral Efficiency of Selective Decode-and-Forward Relaying

Sokun, Hamza Umit; Yanıkömeroğlu, Halim

doi:10.1109/tvt.2016.2607159

Cited by 9 publications

(11 citation statements)

References 11 publications

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“…Typically, relaying involves two phases for transmitting a message from the source to the destination: in the first phase, the message is broadcast from the source to the relay and the destination [46]. During the second phase, the relay node transmits its received message to the destination using a specific protocol, e.g., amplify-and-forward (AF) [47], compressand-forward (CF) [48], compute-and-forward (CTF) [49], or decode-and-forward (DF) [50]. According to the AF protocol, the relay transmits a scaled version of its received signal.…”

Section: ) Cooperativementioning

confidence: 99%

A Comprehensive Survey on Cooperative Relaying and Jamming Strategies for Physical Layer Security

Jameel

Wyne

Kaddoum

et al. 2019

IEEE Commun. Surv. Tutorials

228

106

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Physical layer security (PLS) has been extensively explored as an alternative to conventional cryptographic schemes for securing wireless links. Of late, the research community is actively working towards exploiting cooperative communication techniques to further improve the security. Many studies are showing that the cooperation between the legitimate nodes of a network can significantly enhance their secret communications, relative to the non-cooperative case. Motivated by the importance of this class of PLS systems, this paper provides a comprehensive survey of the recent works on cooperative relaying and jamming techniques for securing wireless transmissions against eavesdropping nodes which attempt to intercept the transmissions. First, it provides a in-depth overview of various secure relaying strategies and schemes. Next, a review of recently proposed solutions for cooperative jamming techniques has been provided with an emphasis on power allocation and beamforming techniques. Then, the latest developments in hybrid techniques, that use both cooperative relaying and jamming, are elaborated. Finally, several key challenges in the domain of cooperative security are presented along with an extensive discussion on the applications of cooperative security in key enablers for 5G communications, such as non-orthogonal multiple access (NOMA), device-to-device (D2D) communications, and massive multiple-input multipleoutput (MIMO) systems.

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Section: ) Cooperativementioning

confidence: 99%

A Comprehensive Survey on Cooperative Relaying and Jamming Strategies for Physical Layer Security

Jameel

Wyne

Kaddoum

et al. 2019

IEEE Commun. Surv. Tutorials

228

106

View full text Add to dashboard Cite

show abstract

“…Recently, there have been many research advances in the DF relay network: the opportunistic relaying (OR) in the presence of CCIs is investigated in [10]; a new transmission scheme for selective DF relaying networks is presented, considering the employment of different modulation levels at the transmitting nodes [11]; and a joint scheme (JS) has been proposed for a multiple-relay multiple-input multiple-output (MIMO) network with a DF relaying strategy [12]. In [13], a novel distributed space-time coding (DSTC) transmission scheme for a two-path successive DF relay network is proposed.…”

Section: Introductionmentioning

confidence: 99%

On performance analysis for optimum combining of DF relaying with fast-fading multiple correlated CCIs, correlated source-relay, and thermal noise

Chung

2019

J Wireless Com Network

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This paper analyzes the outage probability (OP) and the average symbol error rate (SER) of decode-and-forward (DF) relaying. The paper derives closed-form expressions for the OP and the average SER with optimum combining (OC) considering fast-fading multiple correlated CCIs, the correlated source-relay, and thermal noise. It is shown that the performance of the large distance between the source and the relay is better than that of the small distance, regardless of interference fading speed at the destination. We also show that given the source-relay distance, the performance of slow-fading interference is basically better than that of fast fading, except in the low signal-to-noiseratio (SNR) regime for the distance being small. In result, the source-relay distance is generally a more dominating factor for the performance than fading CCIs.

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“…To alleviate the spectral efficiency loss, a transmission scheme has been proposed in decode and forward relaying networks [11]. In [12], authors proposed a joint power allocation and strategy selection scheme for half duplex decode and forward relay system.…”

Section: Introductionmentioning

confidence: 99%

Channel and Relay Assignment Using Kruskal Algorithm in LTE Networks

Rathnasamy¹,

Nagarajan²

2018

IJIES

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Abstract:The paper deals with the study of throughput maximization by relay selection and assignment along with channel and subcarrier allocation. In particular, Kruskal algorithm is applied to solve radio resource allocation problem in wireless communication. Solution for joint optimization of carrier and relay is proposed in this work. Graphical theory approach is examined for solving the problem optimally in a given polynomial time. Total network throughput performances variations are analysed through numerical simulation for various combinations of transmit power nodes and relay nodes. It is also demonstrated in this paper the improvement in sum rate against Greedy's algorithm and Prim's algorithm using proposed Kruskal algorithm. Simulation results obtained show that the Kruskal algorithm based approach around 10% to 22% improvement in Sumrate over the fixed subcarrier pairing for a given source power for a carrier and number of relays.

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On the Spectral Efficiency of Selective Decode-and-Forward Relaying

Cited by 9 publications

References 11 publications

A Comprehensive Survey on Cooperative Relaying and Jamming Strategies for Physical Layer Security

A Comprehensive Survey on Cooperative Relaying and Jamming Strategies for Physical Layer Security

On performance analysis for optimum combining of DF relaying with fast-fading multiple correlated CCIs, correlated source-relay, and thermal noise

Channel and Relay Assignment Using Kruskal Algorithm in LTE Networks

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