Energy harvesting assisted cognitive radio: random location-based transceivers scheme and performance analysis

Nam, Pham Minh; Do, Dinh‐Thuan; Nguyen, Tien‐Tung; Tin, Phu Tran

doi:10.1007/s11235-017-0325-0

Cited by 17 publications

(19 citation statements)

References 20 publications

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“…From (3), (6), and (7), the channel capacity of the primary, data and eavesdropping links in the t-th time slot can be shown, respectively by From (3), (6), and (7), the channel capacity of the primary, data and eavesdropping links in the t-th time slot can be shown, respectively by…”

Section: Sinr Formulationmentioning

confidence: 99%

“…where b, b ∈ {1, 2, … , N T } , denotes the antenna of PT used to transmit the data, and P P b,t and P P u,t are interferences that PT causes on ST t and SE, respectively. From (3), (6), and (7), the channel capacity of the primary, data and eavesdropping links in the t-th time slot can be shown, respectively by…”

Section: Sinr Formulationmentioning

confidence: 99%

“…In CR, licensed users (primary users) share licensed bands to unlicensed users (secondary users), follows underlay, overlay, or interweave scenario. [4][5][6] However, the secondary transmitters operating on the underlay model must adjust their transmit power to satisfy the interference constraint given by the primary receivers. [4][5][6] However, the secondary transmitters operating on the underlay model must adjust their transmit power to satisfy the interference constraint given by the primary receivers.…”

Section: Introductionmentioning

confidence: 99%

“…3 Among these methods, underlay spectrum sharing can guarantee the continuous data transmission for the secondary network. [4][5][6] However, the secondary transmitters operating on the underlay model must adjust their transmit power to satisfy the interference constraint given by the primary receivers. With the limited transmit power, cooperative relay protocols 7,8 can be employed to improve performance of the secondary systems.…”

Section: Introductionmentioning

confidence: 99%

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End‐to‐end security‐reliability analysis of multi‐hop cognitive relaying protocol with TAS/SC‐based primary communication, total interference constraint and asymmetric fading channels

Nam

Duy

2018

Int J Communication

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In this paper, we analyze the tradeoff between outage probability (OP) and intercept probability (IP) for a multi-hop relaying scheme in cognitive radio (CR) networks. In the proposed protocol, a multi-antenna primary transmitter (PT) communicates with a multi-antenna primary receiver (PR), using transmit antenna selection (TAS) / selection combining (SC) technique, while a secondary source attempts to transmit its data to a secondary destination via a multi-hop approach in presence of a secondary eavesdropper. The secondary transmitters such as source and relays have to adjust their transmit power to satisfy total interference constraint given by PR. We consider an asymmetric fading channel model, where the secondary channels are Rician fading, while the remaining ones experience the Rayleigh fading. Moreover, an optimal interference allocation method is proposed to minimize OP of the primary network. For the secondary network, we derive exact expressions of end-to-end OP and IP which are verified by Monte Carlo simulations. KEYWORDSasymmetric fading channels, cognitive radio, multi-hop relaying protocol, security-reliability analysis Int J Commun Syst. 2019;32:e3854.wileyonlinelibrary.com/journal/dac dual-hop asymmetric fading channels. In, 14-17 multi-hop CR scenarios were studied, where the secondary source has to transfer information via several intermediate hops to the secondary destination.Recently, physical layer security (PLS) 18-20 has gained much attention of researchers. The PLS mechanism exploits physical channel characteristics (ie, random and noisy nature of wireless channels) in order to prevent the eavesdropper from intercepting transmission messages on wireless medium. Performance of the PLS-based systems is conventionally evaluated via average secrecy capacity (ASC), secrecy outage probability (SOP), and probability of non-zero secrecy capacity (PNSC). In, 21-23 security-reliability tradeoffs for secure communication systems were investigated, where the security and reliability are quantified in terms of intercept probability (IP) by an eavesdropper and the outage probability (OP), and by an intended receiver, respectively. In, 24 the authors proposed an opportunistic relay selection method to enhance the trade-off between security and reliability for random dual-hop CR networks. The authors of 25 evaluated the security-reliability tradeoff for energy-harvesting underlay CRs system, where cognitive base stations can harvest energy from their surrounding environments for the data transmission. In, 26-29 the authors investigated performances of secure multi-hop relaying networks. In the cooperative relaying approaches, the authorized transmitters often use randomize-and-forward (RF) technique 30,31 to randomly generate codebook so that the eavesdropper cannot combine the transmitted data with maximal ratio combining (MRC).Until now, almost published works related to the security versus reliability study have considered one-hop or dual-hop relaying networks. Motivated by this, we propose a novel m...

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Section: Sinr Formulationmentioning

confidence: 99%

Section: Sinr Formulationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

End‐to‐end security‐reliability analysis of multi‐hop cognitive relaying protocol with TAS/SC‐based primary communication, total interference constraint and asymmetric fading channels

Nam

Duy

2018

Int J Communication

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“…For the overlay strategy, the secondary users detect the underutilized licensed spectrum to access which can avoid collision with the primary transmission [14,15]. For the underlying strategy, the secondary network shares the licensed spectrum with the primary users by controlling the interference with the primary receivers under a threshold [16,17]. In [18], the concept of interweave cognitive radio (CR) systems together with Opportunistic interference alignment (OIA) are introduced as a new technique to enable the multiple-input multiple-output (MIMO) secondary user (SU) to exploit the inherent spatial spectrum holes of the MIMO primary user's (PU) communication link.…”

Section: Introductionmentioning

confidence: 99%

On Performance Analysis of Underlay Cognitive Radio-Aware Hybrid OMA/NOMA Networks with Imperfect CSI

Lee

2019

Electronics

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This study considers the outage and throughput performance of downlink in the secondary network of cognitive radio assisted non-orthogonal multiple access (NOMA) systems. Both orthogonal multiple access (OMA) mode and NOMA mode are investigated with respect to status of decoding operation of each user. Depending on the transmit signal-to-noise ratio (SNR) at the primary source and interference constraint from the primary network, the closed-form expressions of the outage probability for two users are obtained and compared in terms of performance. To obtain further insights, an asymptotic analysis of the outage probability in the high SNR regime is presented. Optimal throughput also provides insight in the computation of the power allocation factor. Furthermore, power allocation factor, target rates, and transmit SNR are evaluated to obtain reasonable outage performance. Monte Carlo simulations are conducted to confirm the analytical results.

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On the secrecy outage probability and performance trade-off of the multi-hop cognitive relay networks

Nam

2019

Telecommun Syst

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Energy harvesting assisted cognitive radio: random location-based transceivers scheme and performance analysis

Cited by 17 publications

References 20 publications

End‐to‐end security‐reliability analysis of multi‐hop cognitive relaying protocol with TAS/SC‐based primary communication, total interference constraint and asymmetric fading channels

End‐to‐end security‐reliability analysis of multi‐hop cognitive relaying protocol with TAS/SC‐based primary communication, total interference constraint and asymmetric fading channels

On Performance Analysis of Underlay Cognitive Radio-Aware Hybrid OMA/NOMA Networks with Imperfect CSI

On the secrecy outage probability and performance trade-off of the multi-hop cognitive relay networks

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