Enhanced Channel Estimation for Comb-type Pilot-aided OFDM systems

Konferenz: PIMRC 2005 - 16th Annual IEEE International Symposium on Personal Indoor and Mobile Radio Communications
11.09.2005 - 14.09.2005 in Berlin, Germany

Tagungsband: PIMRC 2005

Seiten: 3Sprache: EnglischTyp: PDF

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Kim, Jihyung; Park, Jeongho; Hong, Daesik (Center for Information Technology of Yonsei University (CITY), Information and Telecommunication Lab., Dept. of Electrical and Electronic Engin., Yonsei Univ., 134 Shinchondong Seodaemungu, Seoul, Korea)

In this paper, when a timing offset occurs within a cyclic prefix, we describe a linear interpolation with phase compensation for preventing a performance degradation due to the timing offset in the comb-type pilot-aided OFDM systems. With the performance analysis, the phase value which is needed for the phase compensation is derived. By means of the simulation results, we show that the channel estimation is accurate, using the phase compensation with optimal phase value.