Earticle

초록

영어

Traditional distributed power control algorithms in cognitive radio networks are based on the assumption of perfect channel estimation which can lead to performance degradation in practical system. Cognitive radio sensor network (CRSN) has emerged as a promising solution to address the spectrum-related challenges of wireless sensor networks (WSN). Moreover, cognitive radio (CR) gives us a possibility to maximize the utilization efficiency of limited spectrum resources. However, because the wireless devices coexist in the same radio environment, there are harmful channel conflicts among users. First at all, this paper presents a practical model of cumulative interferences from the entire cognitive radio based industrial wireless sensor networks (CR-IWSN). Then, based on the interference model, we propose an intelligent power control scheme to address the communication requirements. The simulation results show that the proposed distributed power control scheme can efficiently increase the energy efficiencies as well as the throughput of the CR-IWSN compared with the existing protocols.

목차

Abstract
 1. Introduction
 2. System Model
  2.1. Cognitive radio-based industrial wireless sensor networks
  2.2. Secondary User Communications
 3. Problem Formulation
 4. Distributed Power Control Algorithm
 5. Simulation
 6. Conclusion
 Acknowledgments
 References

키워드

저자

• Tran Minh Phuong [ School of Electronic Engineering Kumoh National Institute of Technology, Gumi, South Korea ]
• Dong-Seong Kim [ School of Electronic Engineering Kumoh National Institute of Technology, Gumi, South Korea ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Control and Automation

• 간기

  월간

• pISSN

  2005-4297

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605