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Content Provider | IET Digital Library |
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Author | Ghosh, J. Roy, S. Dhar |
Abstract | The network coverage and energy efficiency issues in heterogeneous cognitive-femtocell networks over the macrocell network is studied. Cognitive functions in wireless network nodes are serviceable with the macrocell infrastructure to achieve a balance between two desirable but incompatible features: coverage and energy efficiency. There are two basic but related aspects of cognitive radios (CRs) in the context of wireless communications: optimum CRs for energy efficiency and the act of the functioning of CRs with energy efficiency. To fully utilise the cognitive capability, a dual-tier network architecture is assumed where both the macrocell and the femtocell have a bearing on the cognitive capability. Owing to the salient features of femtocells, they can improve the coverage and enhance the spectrum efficiency by reutilising the frequency spectrum allocated to the macrocell, although, the resulting intercell interference accompanied by the same frequency coverage cannot be underestimated. The effectiveness of the scheme is verified by extensive Matlab simulation. |
Starting Page | 1378 |
Ending Page | 1380 |
Page Count | 3 |
ISSN | 00135194 |
Volume Number | 51 |
e-ISSN | 1350911X |
Issue Number | Issue 17, Aug (2015) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/el/51/17 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/el.2015.0171 |
Journal | Electronics Letters |
Publisher Date | 2015-08-06 |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | Adjacent Channel Interference Cognitive Capability Cognitive Function Cognitive Radio Coverage Probability Dual Tier Network Architecture Electromagnetic Compatibility Energy Conservation Energy Efficiency Femtocellular Radio Frequency Allocation Frequency Spectrum Allocation Heterogeneous Cognitive Femtocell Network Intercell Interference Interference Interference Suppression Macrocell Infrastructure Macrocell Network Mobile Radio System Network Coverage Network Management Probability Spectrum Efficiency Enhancement Statistics Telecommunication Network Management Wireless Communication System Wireless Network Node |
Content Type | Text |
Resource Type | Article |
Subject | Electrical and Electronic Engineering |
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