18 October 2001 Comparison of channel estimation techniques for OFDM systems in frequency-selective fast-fading channels
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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.
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Hanqing Xing, Defeng Huang, 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); doi: 10.1117/12.445230; https://doi.org/10.1117/12.445230
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