Energy Efficient Power Allocation for OFDM-Based Cognitive Radio Systems with Partial Intersystem CSI
Joint Authors
Li, Yong
Hou, Yibin
Chen, Yunli
Jin, Shan
Zheng, Zhengguang
Source
Mathematical Problems in Engineering
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-06-25
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
This paper investigates energy efficient power allocation for orthogonal frequency division multiplexing- (OFDM-) based cognitive radio (CR) systems with partial intersystem channel state information (CSI) available.
The goal is to maximize energy efficiency (EE) while ensuring the minimum rate of secondary user (SU) and keeping the average interference power (AIP) introduced to primary user (PU) within a target probability level.
We propose a suboptimal algorithm to solve this optimization problem based on classic water-filling (WF) technique.
Moreover, we first address the relation between EE and water level.
In order to reduce complexity, a simplified algorithm with closed-form solution is also proposed.
Numerical results are provided to corroborate our theoretical analysis and to demonstrate the effectiveness of the proposed schemes.
American Psychological Association (APA)
Chen, Yunli& Zheng, Zhengguang& Hou, Yibin& Li, Yong& Jin, Shan. 2014. Energy Efficient Power Allocation for OFDM-Based Cognitive Radio Systems with Partial Intersystem CSI. Mathematical Problems in Engineering،Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-497516
Modern Language Association (MLA)
Chen, Yunli…[et al.]. Energy Efficient Power Allocation for OFDM-Based Cognitive Radio Systems with Partial Intersystem CSI. Mathematical Problems in Engineering No. 2014 (2014), pp.1-7.
https://search.emarefa.net/detail/BIM-497516
American Medical Association (AMA)
Chen, Yunli& Zheng, Zhengguang& Hou, Yibin& Li, Yong& Jin, Shan. Energy Efficient Power Allocation for OFDM-Based Cognitive Radio Systems with Partial Intersystem CSI. Mathematical Problems in Engineering. 2014. Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-497516
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-497516