Comparison of channel estimation techniques for OFDM systems in frequency-selective fast-fading channels

Hanqing Xing; Defeng Huang; Zucheng Zhou

doi:10.1117/12.445230

18 October 2001 Comparison of channel estimation techniques for OFDM systems in frequency-selective fast-fading channels

Hanqing Xing, Defeng Huang, Zucheng Zhou

Author Affiliations +

Proceedings Volume 4586, Wireless and Mobile Communications; (2001) https://doi.org/10.1117/12.445230
Event: Asia-Pacific Optical and Wireless Communications Conference and Exhibit, 2001, Beijing, China

Abstract

Channel estimations of many OFDM systems are accomplished by using pilot signals. Two kinds of pilots, frequency-domain pilots and time-domain pilots, are investigated. The performance of these methods in Rayleigh frequency selective channel is simulated. The effects of varying channels on these methods, especially on the time-domain pilot channel estimation technique, are examined. From the results, it can be concluded that when the channel is a slow fading channel time-domain method performs much better than frequency-domain method, but when the channel is a fast fading channel, the performance of time-domain technique is impacted more severely, and is no better than that of frequency-domain technique.

Citation Download Citation

Hanqing Xing, Defeng Huang, and Zucheng Zhou "Comparison of channel estimation techniques for OFDM systems in frequency-selective fast-fading channels", Proc. SPIE 4586, Wireless and Mobile Communications, (18 October 2001); https://doi.org/10.1117/12.445230

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available