Earticle

초록

영어

Time-varying channel estimation is an important activity in next generation wireless communication. Channel estimation is required mainly for the significant signal processing operation in multiple input multiple output (MIMO)-orthogonal frequency division multiplexing (OFDM) systems such as precoder designing at transmitter & relay and relay selection scheme in cooperative communication system. In this paper we investigate and compare various efficient channel estimation schemes for OFDM system. In this paper the channel estimation techniques based on block type Pilot arrangement for OFDM system are investigated. Finally, the discrete Fourier transform (DFT) based channel estimation technique is performed which gives better performance over least square(LS) and minimum mean square error(MMSE) based channel estimation. The bit error rate (BER) of DFT based channel estimation is less than the BER of LS and MMSE based channel estimation with same signal to noise ratio (SNR).

목차

Abstract
 1. Introduction
 2. System description
 3. Channel estimation in OFDM system
  3.1. Block type pilot based channel estimation
  3.2. LS channel estimation
  3.3. MMSE channel estimation
  3.4. DFT-based channel estimation
 4. Simulation and results
 5. Conclusion
 References

키워드

저자

• Md. Muktar Hossain [ Department of Electronics & Telecommunication Engineering, Rajshahi University of Engineering & Technology, Bangladesh ]
• Abdulla Al Suman [ Department of Electronics & Telecommunication Engineering, Rajshahi University of Engineering & Technology, Bangladesh ]
• Liton Chandra Paul [ Liton Chandra Paul3 | Department of Electronic& Telecommunication Engineering, Pabna University of Science & Technology, Bangladesh ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Hybrid Information Technology

• 간기

  격월간

• pISSN

  1738-9968

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605