App. Res. of Comp. Accepted Paper
Vol. 41, 2024 No. 7

Resource allocation of cognitive ultra-dense network with imperfect spectrum sensing

Li Fan1,2
Qiu Runhe1,2
1. College of Information Sciences & Technology, Donghua University, Shanghai 201620, China
2. Engineering Research Center of Digitized Textile & Apparel Technology, Ministry of Education, Donghua University, Shanghai 201620, China
DOI: 10.19734/j.issn.1001-3695.2023.10.0536

Abstract

Aiming at the situation of imperfect spectrum sensing of cognitive radio in actual cognitive ultra-dense network scenarios, this paper proposed a resource allocation scheme based on imperfect spectrum sensing. The target was to maximize the energy efficiency of secondary network in cognitive ultra-dense network with imperfect spectrum sensing while taking into account cross-tier/co-tier interference constraints and ensuring users' quality of service. For it, the author constructed the energy efficiency optimization problem based on the network model, which was a mixed integer non-convex programming problem, then transformed it into an equivalent convex optimization problem by the time-sharing relaxation method and Dinkelbach method, and finally used the Lagrangian dual method to get its optimal solution, thereby obtained the sub-channel and power allocation strategy for optimal energy efficiency. Based on this, this paper proposed an iterative sub-channel and power allocation algorithm. In order to trade off the computational complexity, this paper also proposed a practical sub-channel and power allocation algorithm. Simulation results show that the proposed algorithms effectively improve energy efficiency.

Foundation Support

上海市自然科学基金资助项目(20ZR1400700)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2023.10.0536
Publish at: Application Research of Computers Accepted Paper, Vol. 41, 2024 No. 7

Publish History

[2024-01-22] Accepted Paper

Cite This Article

李凡, 仇润鹤. 非完美频谱感知下认知超密集网络的资源分配 [J]. 计算机应用研究, 2024, 41 (7). (2024-04-10). https://doi.org/10.19734/j.issn.1001-3695.2023.10.0536. (Li Fan, Qiu Runhe. Resource allocation of cognitive ultra-dense network with imperfect spectrum sensing [J]. Application Research of Computers, 2024, 41 (7). (2024-04-10). https://doi.org/10.19734/j.issn.1001-3695.2023.10.0536. )

About the Journal

  • Application Research of Computers Monthly Journal
  • Journal ID ISSN 1001-3695
    CN  51-1196/TP

Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

Aiming at the urgently needed cutting-edge technology in this discipline, Application Research of Computers reflects the mainstream technology, hot technology and the latest development trend of computer application research at home and abroad in a timely manner. The main contents of the journal include high-level academic papers in this discipline, the latest scientific research results and major application results. The contents of the columns involve new theories of computer discipline, basic computer theory, algorithm theory research, algorithm design and analysis, blockchain technology, system software and software engineering technology, pattern recognition and artificial intelligence, architecture, advanced computing, parallel processing, database technology, computer network and communication technology, information security technology, computer image graphics and its latest hot application technology.

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