Robust Energy Efficiency Power Allocation for Uplink OFDM-Based Cognitive Radio Networks

被引：1
|
作者：
Zuo, Jiakuo [1 ]
Van Phuong Dao [1 ]
Bao, Yongqiang [2 ]
Fang, Shiliang [1 ]
Zhao, Li [1 ]
Zou, Cairong [1 ]
机构：
[1] Southeast Univ, Minist Educ, Key Lab Underwater Acoust Signal Proc, Nanjing, Jiangsu, Peoples R China
[2] Nanjing Inst Technol, Sch Commun Engn, Nanjing, Jiangsu, Peoples R China
来源：
ETRI JOURNAL | 2014年 / 36卷 / 03期
关键词：
Cognitive radio; energy efficiency; OFDM; general fractional programming;
D O I：
10.4218/etrij.14.0213.0262
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper studies the energy efficiency power allocation for cognitive radio networks based on uplink orthogonal frequency-division multiplexing. The power allocation problem is intended to minimize the maximum energy efficiency measured by "Joule per bit" metric, under total power constraint and robust aggregate mutual interference power constraint. However; the above problem is non-convex. To make it solvable, an equivalent convex optimization problem is derived that can be solved by general fractional programming. Then, a robust energy efficiency power allocation scheme is presented. Simulation results corroborate the effectiveness of the proposed methods.
引用
收藏
页码：506 / 509
页数：4
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