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| Content Provider | IET Digital Library |
|---|---|
| Author | Naeem, Muhammad Illanko, Kandasamy Karmokar, Ashok Anpalagan, Alagan Jaseemuddin, Muhammad |
| Abstract | In this study, the problem of determining the power allocation that maximises the energy efficiency of cognitive radio network is investigated as a constrained fractional programming problem. The energy-efficient fractional objective is defined in terms of bits per Joule per Hertz. The proposed constrained fractional programming problem is a non-linear non-convex optimisation problem. The authors first transform the energy-efficient maximisation problem into a parametric optimisation problem and then propose an iterative power allocation algorithm that guarantees ε-optimal solution. A proof of convergence is also given for the ε-optimal algorithm. The proposed ε-optimal algorithm provide a practical solution for power allocation in energy-efficient cognitive radio networks. In simulation results, the effect of different system parameters (interference threshold level, number of primary users and number of secondary users) on the performance of the proposed algorithms are investigated. |
| Starting Page | 1279 |
| Ending Page | 1286 |
| Page Count | 8 |
| ISSN | 17518628 |
| Volume Number | 7 |
| e-ISSN | 17518636 |
| Issue Number | Issue 12, Aug (2013) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-com/7/12 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-com.2012.0604 |
| Journal | IET Communications |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Cognitive Radio Concave Programming Constrained Fractional Programming Problem Energy-efficient Cognitive Radio Network Energy-efficient Fractional Objective Energy-efficient Maximisation Problem Environmental Factors Green Cognitive Radio Interference Threshold Level Interpolation And Function Approximation Iterative Method Iterative Power Allocation Algorithm Nonlinear Nonconvex Optimisation Problem Nonlinear Programming Numerical Analysis Optimal Power Allocation Optimisation Technique Parametric Optimisation Problem Primary User Radio Link And Equipment Secondary User ε-optimal Solution |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering Computer Science Applications |
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