NDLI: Joint user association and resource allocation for cognitive radio networks

Content Provider	IEEE Xplore Digital Library
Author	Ding Xu Qun Li
Copyright Year	2014
Description	Author affiliation: Sch. of Comput. Sci. & Technol., Nanjing Univ. of Posts & Telecommun., Nanjing, China (Qun Li) \|\| Wireless Commun. Key Lab. of Jiangsu Province, Nanjing Univ. of Posts & Telecommun., Nanjing, China (Ding Xu)
Abstract	This paper investigates the problem of joint user association and resource allocation in a downlink cognitive radio (CR) network. In the CR network, multiple cognitive base stations (CBSs) and multiple secondary users (SUs) are considered to share multiple channels with the primary user (PU) under the condition that the interference from the CR network to the PU is restricted. Exclusive user association, where each SU is allowed to associate with only one CBS, and exclusive channel allocation, where each channel is allowed to be allocated to only one SU, are adopted. Furthermore, the maximum number of SUs that can be supported by the CBS is restricted in order to prevent from CBS overloading. Under the above setups, a heuristic joint user association and resource allocation scheme is proposed. The aim is to maximize the sum rate of the SUs subject to the transmit power constraint and the interference power constraint. It is shown by simulations that the proposed scheme achieves significantly higher sum rate of the SUs than that of the fixed scheme, especially for high transmit power limit and high interference power limit.
Starting Page	1
Ending Page	6
File Size	325742
Page Count	6
File Format	PDF
ISBN	9781479973392
DOI	10.1109/WCSP.2014.6992099
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-10-23
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Interference Downlink Telecommunications Resource management Cognitive radio Joints
Content Type	Text
Resource Type	Article

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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
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