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학술지 Timing Estimation for OFDM Systems by Using a Correlation Sequence of Preamble
Cited 42 time in scopus Download 0 time Share share facebook twitter linkedin kakaostory
저자
강연수, 김수영, 안도섭, 이호진
발행일
200811
출처
IEEE Transactions on Consumer Electronics, v.54 no.4, pp.1600-1608
ISSN
0098-3063
출판사
IEEE
DOI
https://dx.doi.org/10.1109/TCE.2008.4711208
협약과제
08MR5600, IMT-Advanced 위성접속 기술개발(표준화연계), 안도섭
초록
In this paper, we propose a novel timing estimation method for orthogonal frequency division multiplexing (OFDM) systems. The most common approaches in estimating timing use correlation by using a given preamble. Thus, the estimation performance is directly dependent on the specific preamble type. The proposed algorithm estimates the timing by using a simple circular shift operation of the given preamble at the receiver. For this reason, the proposed method can be used for any of the OFDM systems regardless of their preamble structures. The simulation results investigated in this paper reveal that the proposed method remarkably increases the estimation performance by more than 5 dB in terms of the mean squared error compared to conventional methods. We also consider the computational complexity of the methods and introduce a simple structure to reduce the computational burden of the proposed method. © 2008 IEEE.
키워드
OFDM, Preamble, Synchronization, Timing estimation
KSP 제안 키워드
Circular shift, Computational complexity, Conventional methods, Estimation method, OFDM systems, Orthogonal frequency division Multiplexing(OFDM), Shift Operation, Timing estimation, computational burden, estimation performance, mean square error(MSE)