Broadcasting in Cognitive Radio Networks: A Fountain Codes Approach

Tu, Lam-Thanh; Nguyen, Tan N.; Duy, Tran Trung; Tran, Phuong T.; Vozňák, Miroslav; Aravanis, Alexis I.

doi:10.1109/tvt.2022.3188969

Cited by 18 publications

(25 citation statements)

References 10 publications

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“…It, however, merely equips a single antenna at the transmitter rather than multiple antennae like the current work. The main differences between [20] and the present paper are the following:…”

Section: Introductionmentioning

confidence: 77%

“…Additionally, the transmit diversity that can significantly enhance the system reliability is ignored and the statistics of the number of required time slots to broadcast messages are missing too. The most closet work is [20] where authors also employed Fountain codes to broadcast messages to all terminals. It, however, merely equips a single antenna at the transmitter rather than multiple antennae like the current work.…”

Section: Introductionmentioning

confidence: 99%

“…• In the present paper, the secondary transmitter (ST) is equipped with multiple antennae while ST in [20] solely equips with a single antenna. The maximal ratio transmission (MRT) is deployed to take advantage of multiple antennae at ST. As a consequence, the mathematical framework of the signal-to-interference-plusnoise-ratio (SINR) is dissimilar and more challenging.…”

Section: Introductionmentioning

confidence: 99%

“…The maximal ratio transmission (MRT) is deployed to take advantage of multiple antennae at ST. As a consequence, the mathematical framework of the signal-to-interference-plusnoise-ratio (SINR) is dissimilar and more challenging. More precisely, the distribution of the sum of multiple exponential random variables (RVs) is no longer following the exponential distribution, hence, a different approach is needed to compute the success probability to decode a packet at secondary receivers (SRs) and the derived framework is obviously not the same as [20].…”

Section: Introductionmentioning

confidence: 99%

“…• In the present work, we address the performance of the average throughput of secondary networks (SNs) while [20] focuses on the energy efficiency of the SNs.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Performance on Cognitive Broadcasting Networks Employing Fountain Codes and Maximal Ratio Transmission

Nguyen¹,

Tu²,

Nguyen³

et al. 2023

RADIOENGINEERING

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The comprehensive performance of cognitive broadcasting networks employing Fountain codes (FC) and maximal ratio transmission (MRT) is investigated in the present paper. More precisely, the secondary transmitter (ST) employs Fountain code to effectively broadcast a common message such as a safety warning, security news, etc., to all secondary receivers (SRs) via underlay protocol of cognitive radio networks (CRNs). Different from works in the literature that are interested in studying the outage probability (OP), and the ergodic capacity of the CRNs. The present paper, on the other hand, focuses on the characteristics of the number of needed time slots to successfully deliver such a message. Particularly, we derive in closed-form expressions the cumulative distribution function (CDF), the probability mass function (PMF), and the average number of the required time slot to broadcast the message to all SRs. Additionally, we also provide the throughput of secondary networks (SNs). We point out the impact of some key parameters, i.e., the number of SRs and the number of transmit antennae at the secondary transmitter, on the performance of these considered metrics. Numerical results via the Monte-Carlo method are given to verify the accuracy of the derived framework as well as to highlight the influences of some essential parameters. Furthermore, we also compare the performance of the proposed networks with state-of-the-art and simulation results unveiling that the considered system consistently outperforms works in the literature.

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Section: Introductionmentioning

confidence: 77%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…• In the present work, we address the performance of the average throughput of secondary networks (SNs) while [20] focuses on the energy efficiency of the SNs.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Performance on Cognitive Broadcasting Networks Employing Fountain Codes and Maximal Ratio Transmission

Nguyen¹,

Tu²,

Nguyen³

et al. 2023

RADIOENGINEERING

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show abstract

Augmented LT codes over binary extension fields with increased ratio of full‐degree columns

Jiang,

Cui,

et al. 2024

Electronics Letters

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This letter proposes an augmented scheme of LT codes to improve the decoding success rate. The method involves substituting the 1‐s in full‐degree columns of the generator matrix of conventional LT codes with binary extension field elements and simultaneously increasing the ratio of full‐degree columns in the ideal soliton distribution. For non‐full‐degree columns, we retain the nonzero elements as 1‐s in the conventional LT codes generator matrix to preserve computational efficiency. Compared to conventional LT codes, the proposed method enhances the linear independence of the generator matrix, leading to a higher decoding success rate with minimal data packets. Experimental results demonstrate the effectiveness of the method at improving the performance of LT codes, with close to 100% decoding success rate achieved with around 5% data redundancy.

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On the security and reliability performance of SWIPT-enabled full-duplex relaying in the non-orthogonal multiple access networks

Nguyen

2023

Journal of Information and Telecommunication

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Broadcasting in Cognitive Radio Networks: A Fountain Codes Approach

Cited by 18 publications

References 10 publications

Performance on Cognitive Broadcasting Networks Employing Fountain Codes and Maximal Ratio Transmission

Performance on Cognitive Broadcasting Networks Employing Fountain Codes and Maximal Ratio Transmission

Augmented LT codes over binary extension fields with increased ratio of full‐degree columns

On the security and reliability performance of SWIPT-enabled full-duplex relaying in the non-orthogonal multiple access networks

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