Earticle

초록

영어

To satisfy green communication needs, energy efficiency is regraded as one of the most important indicators to evaluate the effectiveness of a communication system. In this paper, we establish the energy efficiency optimization framework for uplink multiuser mutliple-input multiple-output system. Taking the circuit power, the antenna link power and signal processing power into consideration, an analytical expression of the achieveable energy efficiency is firstly established, which can better model the practical communication process. Furthermore, we simplify the objective function under some mild conditions. After demonstrating the existence of a unique golbally optimal energy efficiency, an adaptive water-filling power allocation algorithm is proposed to further improve the energey efficiency of the system. Finally some simulation results are given to verify the performance of our scheme. Our work can provide a fundamental principles for uplink mutiluser multiple-input multiple-output systems design.

목차

Abstract
 1. Introduction
 2. System Model
 3. Optimal EE under Mild Condition
  3.2. The Case of N=K  
  3.3. The Case of N>K  
 4. Simulation Results
 5. Conclusions
 Acknowledgements
 7. Appendix A
 References

키워드

저자

• Lina Ma [ School of Information Engineering, Zhengzhou University, Zhengzhou, China ]
• Shuangzhi Li [ School of Information Engineering, Zhengzhou University, Zhengzhou, China ]
• Xiaomin Mu [ School of Information Engineering, Zhengzhou University, Zhengzhou, China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Multimedia and Ubiquitous Engineering

• 간기

  월간

• pISSN

  1975-0080

• 수록기간

  2008~2016

• 등재여부

  SCOPUS

• 십진분류

  KDC 505 DDC 605