A MAXIMUM LIKEHOOD FREQUENCY OFFSET ESTIMATION WITH IMPROVED RANGE AD PERFORMANCE IN OFDM SYSTEMS

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NEZAMFAR H.; KAHAEI M.H.

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Paper Information

Journal: INTERNATIONAL JOURNAL OF INFORMATION AND COMMUNICATION TECHNOLOGY RESEARCH Year:2010 | Volume:2 | Issue:1 Page(s): 11-19

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Title

A MAXIMUM LIKEHOOD FREQUENCY OFFSET ESTIMATION WITH IMPROVED RANGE AD PERFORMANCE IN OFDM SYSTEMS

Author(s)

NEZAMFAR H. | KAHAEI M.H. | Issue Writer Certificate

Keywords

ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING (OFDM)

CARRIER FREUENCY

OFFSET

MAXIMUM LIKLIHOOD

Abstract

Maximum Likelihood (ML) estimation of the frequency offset between the transmitter and the receiver from known transmitted preambles is the dominant technique for the estimation of Carrier Frequency Offset (CFO) in OFDM systems. A general formulation of ML detection problem for OFDM systems is provided in this paper and it is described how different ML techniques can be treated as special cases. In addition, major newly proposed ML techniques are compared in unified simulation framework in the presence of AWGN and their performance in term of estimation range and complexityis compared. Furthermore, we proposed two new preamble structures which have comparable complexity to the simplest available methods while their estimation ranges are fairly large, comparable to the largest achieved ranges.

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APA: Copy

NEZAMFAR, H., & KAHAEI, M.H.. (2010). A MAXIMUM LIKEHOOD FREQUENCY OFFSET ESTIMATION WITH IMPROVED RANGE AD PERFORMANCE IN OFDM SYSTEMS. INTERNATIONAL JOURNAL OF INFORMATION AND COMMUNICATION TECHNOLOGY RESEARCH, 2(1), 11-19. SID. https://sid.ir/paper/315066/en

Vancouver: Copy

NEZAMFAR H., KAHAEI M.H.. A MAXIMUM LIKEHOOD FREQUENCY OFFSET ESTIMATION WITH IMPROVED RANGE AD PERFORMANCE IN OFDM SYSTEMS. INTERNATIONAL JOURNAL OF INFORMATION AND COMMUNICATION TECHNOLOGY RESEARCH[Internet]. 2010;2(1):11-19. Available from: https://sid.ir/paper/315066/en

IEEE: Copy

H. NEZAMFAR, and M.H. KAHAEI, “A MAXIMUM LIKEHOOD FREQUENCY OFFSET ESTIMATION WITH IMPROVED RANGE AD PERFORMANCE IN OFDM SYSTEMS,” INTERNATIONAL JOURNAL OF INFORMATION AND COMMUNICATION TECHNOLOGY RESEARCH, vol. 2, no. 1, pp. 11–19, 2010, [Online]. Available: https://sid.ir/paper/315066/en

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