scholarly journals Modeling Study on Dynamic Spectrum Sharing System Under Interference Temperature Constraints in Underground Coal Mines

2015 ◽  
Vol 8 (1) ◽  
pp. 140-148
Author(s):  
Chen Guizhen ◽  
Ding Enjie ◽  
Wang Gang ◽  
Xue Xue
Keyword(s):  
Spectrum Sharing ◽  
Dynamic Spectrum Access ◽  
Coal Mines ◽  
Dynamic Spectrum ◽  
Utilization Efficiency ◽  
Spectrum Access ◽  
Secondary Users ◽  
Dynamic Spectrum Sharing ◽  
Interference Temperature ◽  
Access System

This paper proposes a dynamic spectrum access system for underground wireless communication——a dynamic spectrum sharing system under interference temperature constrains. It can make the best of spectrum resources and improve the utilization efficiency. Then, a multi-dimensional Markov chain is used to model the system. On the basis, the secondary users’ performance under interference temperature constrains is obtained. As two important performance indexes to measure secondary users’ performance, cognitive users’ interrupting probability and blocking probability are calculated. Finally, cognitive users’ performance under different users’ access is analyzed, and the performances in dynamic spectrum access system and overlay access system are compared. Simulation results indicate that the dynamic spectrum sharing access system under interference temperature constrains is superior to the overlay access system and helpful to improve the spectrum sharing system in coal mines.

scholarly journals Heuristic Greedy Method for Spectrum Sensing in Cognitive Radio Network

2019 ◽  
Vol 9 (2) ◽  
pp. 1454-1459
Keyword(s):  
Cognitive Radio ◽  
Spectrum Sensing ◽  
Spectrum Sharing ◽  
Dynamic Spectrum Access ◽  
Cognitive Radio Network ◽  
Dynamic Spectrum ◽  
Radio Network ◽  
Secondary Users ◽  
Dynamic Spectrum Sharing ◽  
Radio Frequency Spectrum

In recent years, radio frequency spectrum in wireless communication is not effectively utilized. To utilize the spectrum effectively, an optimistic technology called “Cognitive Radio network” used. It is the best preferable next generation wireless networks. Using DSA (Dynamic Spectrum Access) approaches, it shares the spectrum effectively between the primary and secondary users. It allows the secondary users to use the spectrum by dynamic spectrum sharing algorithms. When the primary users and secondary users are using same frequency band and transmitting simultaneously, there is a spectrum underlay problem in the network. A novel heuristic greedy algorithm proposed for improving the performance parameters of cognitive radio network using co-operative spectrum sensing.

Learning-based predictive dynamic spectrum access framework: a practical perspective for enhanced QoE of secondary users

2018 ◽  
Vol 12 (18) ◽  
pp. 2243-2252 ◽  
Author(s):  
Anirudh Agarwal ◽  
Ranjan Gangopadhyay ◽  
Shivangi Dubey ◽  
Soumitra Debnath ◽  
Mohd Asif Khan
Keyword(s):  
Dynamic Spectrum Access ◽  
Dynamic Spectrum ◽  
Spectrum Access ◽  
Secondary Users

FedSwap: A Federated Learning based 5G Decentralized Dynamic Spectrum Access System

2021 ◽  
Author(s):  
Zhihui Gao ◽  
Ang Li ◽  
Yunfan Gao ◽  
Bing Li ◽  
Yu Wang ◽  
...  
Keyword(s):  
Dynamic Spectrum Access ◽  
Dynamic Spectrum ◽  
Spectrum Access ◽  
Access System

scholarly journals Analysis of Spectrum Selection Methods Based on Platform-Qualnet in Cognitive Radio Networks

2019 ◽  
Vol 15 (03) ◽  
pp. 124
Author(s):  
Hui Sun ◽  
Han Han
Keyword(s):  
Dynamic Spectrum Access ◽  
Radio Networks ◽  
Dynamic Spectrum ◽  
Control Channel ◽  
Selection Methods ◽  
Spectrum Access ◽  
Secondary Users ◽  
Control Center ◽  
Regular Control ◽  
Spectrum Selection

Dynamic spectrum Access （DSA）is used to make use of the spectrum in wireless network. In most situations, control channel is a common approach to negotiation between secondary users. But, based on this feature, the attacker can destroy the communication network only influence the control center. So, in this paper, two methods without control channel are simulated in Qualent platform. The results prove that those methods are available, and the Receiver-directed channel selection is more match to the regular control channel standards in throughput.

Sign in / Sign up

Export Citation Format

Share Document