Joint optimization of spectrum sensing and dynamic spectrum access system

Author(s):  
Ye Wang ◽  
Bin Cao ◽  
Xiaodong Lin ◽  
Qinyu Zhang
2021 ◽  
Author(s):  
Zhihui Gao ◽  
Ang Li ◽  
Yunfan Gao ◽  
Bing Li ◽  
Yu Wang ◽  
...  

A conveyed compressive inspecting method is proposed for agreeable wideband spectrum sensing which requires fewer quantities of estimations whereas conquering time-changeability of range inhabitance and the shrouded station issue. Initially, we demonstrate that the wideband range inhabitance data could most likely be recouped with a decreased quantity of range estimations. Second, we suggest detecting framework plan which increases the spectrum detecting recuperation precision. Utilizing simulations, we affirm our theoretic outcomes and demonstrate that collaboration prompts high identification likelihood, even with every auxiliary client taking just little estimation. We likewise demonstrate that it is adequate to think about a subset of near to optional clients to get equivalent exhibitions.


2015 ◽  
Vol 8 (1) ◽  
pp. 140-148
Author(s):  
Chen Guizhen ◽  
Ding Enjie ◽  
Wang Gang ◽  
Xue Xue

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.


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