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http://dx.doi.org/10.7840/KICS.2011.36A.7.627

A Joint Frequency Offset Measurement Using Inversely Repeated Training Symbol and Cyclic Prefix  

Kim, Jun-Woo (한국전자통신연구원 이동단말모뎀연구팀)
Park, Youn-Ok (한국전자통신연구원 이동단말모뎀연구팀)
Kim, Whan-Woo (충남대학교 전자공학과)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.36, no.7A, 2011 , pp. 627-634 More about this Journal
Abstract
In this paper, a new frequency offset estimation method in OFDM system is suggested. To measure fractional part of frequency offset, the repetition feature of cyclic prefix and that of training sequence is adopted. Both method shows relatively large frequency offset estimation error under low SNR circumstances, but this error can be greatly reduced by joint measurement of cyclic prefix and inversely repeated training symbol such as primary advanced preamble (PA-preamble) of IEEE 802.16m IMT-Advanced WiMax system. In this paper, the performance of suggested frequency offset estimation method is verified in IEEE 802.16m IMT Advanced WiMax system, using its PA-preamble and cyclic prefixes of A-preambles.
Keywords
OFDM; IEEE 802.16m; frequency offset;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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