A pilot-aided frequency offset estimation algorithm for OFDMA uplink systems

Kilbom Lee; Sung Hyun Moon; Inkyu Lee

doi:10.1109/VTCFall.2012.6398887

A pilot-aided frequency offset estimation algorithm for OFDMA uplink systems

Kilbom Lee, Sung Hyun Moon, Inkyu Lee

School of Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Citations (Scopus)

Abstract

In this paper, we propose a pilot aided carrier frequency offset (CFO) estimation algorithm for orthogonal frequency division multiplexing access (OFDMA) uplink systems based on two consecutive received OFDMA symbols. Assuming that the channels and the CFOs are static over the two consecutive symbols, we express the second received OFDMA symbol in terms of the CFOs and the first OFDMA symbol. Based on this signal model, a new estimation algorithm which obtains the CFOs by minimizing the mean square distance between the received OFDMA symbol and its regenerated signal is provided. The simulation results show that the proposed algorithm approaches the average Cramer Rao bound for moderate and high signal to noise ratio regions. Moreover, the algorithm can be applied for any carrier assignment schemes.

Original language	English
Title of host publication	2012 IEEE Vehicular Technology Conference, VTC Fall 2012 - Proceedings
DOIs	https://doi.org/10.1109/VTCFall.2012.6398887
Publication status	Published - 2012
Event	76th IEEE Vehicular Technology Conference, VTC Fall 2012 - Quebec City, QC, Canada Duration: 2012 Sept 3 → 2012 Sept 6

Publication series

Name	IEEE Vehicular Technology Conference
ISSN (Print)	1550-2252

Other

Other	76th IEEE Vehicular Technology Conference, VTC Fall 2012
Country/Territory	Canada
City	Quebec City, QC
Period	12/9/3 → 12/9/6

ASJC Scopus subject areas

Computer Science Applications
Electrical and Electronic Engineering
Applied Mathematics

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10.1109/VTCFall.2012.6398887

Cite this

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title = "A pilot-aided frequency offset estimation algorithm for OFDMA uplink systems",

abstract = "In this paper, we propose a pilot aided carrier frequency offset (CFO) estimation algorithm for orthogonal frequency division multiplexing access (OFDMA) uplink systems based on two consecutive received OFDMA symbols. Assuming that the channels and the CFOs are static over the two consecutive symbols, we express the second received OFDMA symbol in terms of the CFOs and the first OFDMA symbol. Based on this signal model, a new estimation algorithm which obtains the CFOs by minimizing the mean square distance between the received OFDMA symbol and its regenerated signal is provided. The simulation results show that the proposed algorithm approaches the average Cramer Rao bound for moderate and high signal to noise ratio regions. Moreover, the algorithm can be applied for any carrier assignment schemes.",

author = "Kilbom Lee and Moon, {Sung Hyun} and Inkyu Lee",

year = "2012",

doi = "10.1109/VTCFall.2012.6398887",

language = "English",

isbn = "9781467318815",

series = "IEEE Vehicular Technology Conference",

booktitle = "2012 IEEE Vehicular Technology Conference, VTC Fall 2012 - Proceedings",

note = "76th IEEE Vehicular Technology Conference, VTC Fall 2012 ; Conference date: 03-09-2012 Through 06-09-2012",

}

TY - GEN

T1 - A pilot-aided frequency offset estimation algorithm for OFDMA uplink systems

AU - Lee, Kilbom

AU - Moon, Sung Hyun

AU - Lee, Inkyu

PY - 2012

Y1 - 2012

N2 - In this paper, we propose a pilot aided carrier frequency offset (CFO) estimation algorithm for orthogonal frequency division multiplexing access (OFDMA) uplink systems based on two consecutive received OFDMA symbols. Assuming that the channels and the CFOs are static over the two consecutive symbols, we express the second received OFDMA symbol in terms of the CFOs and the first OFDMA symbol. Based on this signal model, a new estimation algorithm which obtains the CFOs by minimizing the mean square distance between the received OFDMA symbol and its regenerated signal is provided. The simulation results show that the proposed algorithm approaches the average Cramer Rao bound for moderate and high signal to noise ratio regions. Moreover, the algorithm can be applied for any carrier assignment schemes.

AB - In this paper, we propose a pilot aided carrier frequency offset (CFO) estimation algorithm for orthogonal frequency division multiplexing access (OFDMA) uplink systems based on two consecutive received OFDMA symbols. Assuming that the channels and the CFOs are static over the two consecutive symbols, we express the second received OFDMA symbol in terms of the CFOs and the first OFDMA symbol. Based on this signal model, a new estimation algorithm which obtains the CFOs by minimizing the mean square distance between the received OFDMA symbol and its regenerated signal is provided. The simulation results show that the proposed algorithm approaches the average Cramer Rao bound for moderate and high signal to noise ratio regions. Moreover, the algorithm can be applied for any carrier assignment schemes.

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DO - 10.1109/VTCFall.2012.6398887

M3 - Conference contribution

AN - SCOPUS:84878919076

SN - 9781467318815

T3 - IEEE Vehicular Technology Conference

BT - 2012 IEEE Vehicular Technology Conference, VTC Fall 2012 - Proceedings

T2 - 76th IEEE Vehicular Technology Conference, VTC Fall 2012

Y2 - 3 September 2012 through 6 September 2012

ER -

A pilot-aided frequency offset estimation algorithm for OFDMA uplink systems

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