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| Content Provider | IET Digital Library |
|---|---|
| Author | Kaur, Avneet Sharma, Surbhi Mishra, Amit |
| Abstract | Cognitive radio (CR) technology enables adaptation of transmission parameters according to the operating environment and different quality of service (QoS) requirements. This feature can be applied to realise green radios as recent research trends are focused on improving the energy efficiency of wireless communication systems. A power amplifier (PA) is found to consume a major portion of energy in radio-frequency circuits for medium- and long-range transmissions. Thus, minimising PA power consumption is one of the major challenges to realise green radios. In this study, mathematical formulation of total system power consumption at CR transmitter with Class B PA is shown and its optimisation is done by parameter reconfiguration for data transmission scenario employing recently proposed nature-inspired optimisation techniques. Performance of ant lion optimiser, grasshopper optimisation algorithm, Grey wolf optimiser, Moth-flame optimisation and Whale optimisation algorithm (WOA) is compared for solving this problem in terms of different performance metrics. Simulation results show the effectiveness of WOA in minimising the system power consumption by parameter adaptation in multicarrier CR system while satisfying different QoS constraints. |
| Starting Page | 2511 |
| Ending Page | 2520 |
| Page Count | 10 |
| ISSN | 17518628 |
| Volume Number | 12 |
| e-ISSN | 17518636 |
| Issue Number | Issue 19, Dec (2018) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-com/12/19 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-com.2018.5327 |
| Journal | IET Communications |
| Publisher Date | 2018-09-11 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Ant Lion Optimiser Class B PA Cognitive Radio CR Technology CR Transmitter Data Transmission Scenario Energy Efficiency Grasshopper Optimisation Algorithm Green Communication Green Radios Grey Wolf Optimiser Long-range Transmissions Mathematical Formulation Microwave Circuit And Device Moth-flame Optimisation Multicarrier CR System Nature-inspired Optimisation Algorithm Optimisation Optimisation Technique PA Power Consumption Minimization Parameter Adaptation Parameter Reconfiguration Performance Metrics Power Amplifier Power Consumption QoS Constraint Quality of Service Radio Link And Equipment Radio-frequency Circuit Radiofrequency Power Amplifiers Telecommunication Power Management Total System Power Consumption Transmission Parameter Whale Optimisation Algorithm Wireless Communication System |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering Computer Science Applications |
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