Earticle

초록

영어

Cognitive radio has been demonstrated for improved spectrum utilization by secondary users in the presence of spectrum holes. In this paper, a Cognitive Radio (CR) network is implemented over the cooperative multihop wireless link. A multihop network is a collection of relay nodes within transmitter and receiver. A fixed infrastructure based multihop architecture is assumed for the performance analysis of energy detection algorithm for spectrum sensing in CR. System performance estimation against channel impairments dominated by fading and shadowing effects is one of the prerequisite for performance analysis of such networks. An effort has been made for exact performance analysis of multihop wireless network over composite fading channels. The investigation lead to the findings i.e., for a given value of fading or shadowing parameter, the preferable detection probability is always dependent upon the optimum number of hops. Depending upon SNR a three- or five- hop link may perform better. For severe fading conditions, the one-hop link performs best.

목차

Abstract
 1. Introduction
 2. Multihop Systems and Spectrum Sensing
 3. Composite Fading Channel Model
 4. Performance Analysis and Simulation Results for Multihop System
 5. Conclusion
 References

키워드

저자

• Deepti Kakkar [ Department of ECE, National Institute of Technology, Jalandhar, India ]
• Arun Khosla [ Department of ECE, National Institute of Technology, Jalandhar, India ]
• Moin Uddin [ Delhi Technological University ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Advanced Science and Technology

• 간기

  월간

• pISSN

  2005-4238

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605