NDLI: Optimal power allocation for multiple input single output cognitive radios with antenna selection strategies

Content Provider	IET Digital Library
Author	Zhou, Fuhui Li, Zan Si, Jiangbo Liu, Boyang Huang, Haiyan
Abstract	The opportunistic spectrum access technology is one of the most promising methods for alleviating the spectrum scarcity problem, which enables a secondary user (SU) to utilise a primary user spectrum band that is detected idle. However, the throughput achieved by cognitive radios is limited by the interference constraint imposing on the SU. Multiple input single output antenna techniques and antenna selection (AS) techniques are exploited to combat the interference constraint and improve the achievable average throughput of the SU. The optimal power allocation strategy is proposed to maximise the achievable average throughput. Performance analyses for the achievable average throughputs are performed under the maximum channel gain AS strategy, the minimum interference channel gain AS strategy and the ratio AS strategy. It is proved that the optimal transmitted AS strategy is the ratio AS strategy when the optimal power allocation strategy is used. The optimal sensing parameters are designed to further improve the maximum average throughput. Extensive simulation results are conducted to verify this analysis.
Starting Page	1337
Ending Page	1345
Page Count	9
ISSN	17518628
Volume Number	9
e-ISSN	17518636
Issue Number	Issue 10, Jul (2015)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/9/10
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2014.0939
Journal	IET Communications
Publisher Date	2015-04-29
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Antenna Array Cognitive Radio Electromagnetic Compatibility Interference Legislation, Frequency Allocation And Spectrum Pollution Maximum Average Throughput Maximum Channel Gain AS Strategy MIMO Communication Minimum Interference Channel Gain AS Strategy Multiple Input Single Output Antenna Selection Technique Multiple Input Single Output Cognitive Radio Opportunistic Spectrum Access Technology Optimal Power Allocation Strategy Optimal Sensing Parameter Primary User Spectrum Band Radio Frequency Interference Radio Link And Equipment Radio Spectrum Management Secondary User Signal Detection Spectrum Scarcity Problem Wireless Channel
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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