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| Content Provider | IET Digital Library |
|---|---|
| Author | Song, Min Zheng, Meng |
| Abstract | Heterogeneous cognitive radio networks (H-CRNs) operating in the same TV white space (TVWS) spectrum cause severe mutual interferences, which heavily degrades the network performance of coexisting H-CRNs. Inspired by the Lotka–Volterra competition model of different species in a biological ecosystem, this study formulates the coexistence of H-CRNs over TVWS as an equilibrium assignment problem of a discrete non-linear control system (DNCS). By using the local linearisation method, the authors can find an approximate linear control system (ALCS) model to the DNCS. Further, they obtain an effective feedback control to the equilibrium assignment of the ALCS via solving a sufficient condition in the form of linear matrix inequalities. Third, they propose a novel ecology-inspired heterogeneous coexistence algorithm (EHCA) based on the obtained feedback control. It is shown in simulations that the proposed EHCA could guarantee any desired but feasible spectrum share among H-CRNs. |
| Starting Page | 620 |
| Ending Page | 626 |
| Page Count | 7 |
| ISSN | 17518628 |
| Volume Number | 12 |
| e-ISSN | 17518636 |
| Issue Number | Issue 5, Mar (2018) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-com/12/5 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-com.2017.0531 |
| Journal | IET Communications |
| Publisher Date | 2018-01-11 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | ALCS Model Algebra Approximate Linear Control System Biological Ecosystem Cognitive Radio Control Application in Radio And Radar Discrete Nonlinear Control System DNCS Ecology-inspired Heterogeneous Coexistence Algorithm Effective Feedback Control EHCA Equilibrium Assignment Equilibrium Assignment Problem H-CRN Heterogeneous Cognitive Radio Network Legislation, Frequency Allocation And Spectrum Pollution Linear Matrix Inequalities Local Linearisation Method Lotka-Volterra Competition Model Mutual Interferences Nonlinear Control System Radio Link And Equipment Radio Spectrum Management Spectrum Share Telecommunication Control TV White Space TV White Space Spectrum TVWS Spectrum |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering Computer Science Applications |
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