### Abstract

This paper presents a new blind carrier frequency offset estimation scheme for orthogonal frequency division multiplexing (OFDM) systems with constant modulus (CM) signaling. We consider both single-input single-output (SISO) systems and multiple-input multiple-output (MIMO) systems with orthogonal space-time block coding. The proposed scheme is based on the reasonable assumption that the number of resolvable multipaths is much smaller than the number of subcarriers, which implies that the channel frequency response on two consecutive sub-carriers is approximately the same. Based on this, we propose cost functions which minimize the difference of the signal power between neighboring subcarriers. We prove the identiflability of the proposed scheme and show that significant performance improvements with low complexity can be achieved, all relative to existing estimation schemes.

Original language | English |
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Title of host publication | SPAWC 2007 - 8th IEEE Workshop on Signal Advances in Wireless Communications |

Publication status | Published - 2007 |

Externally published | Yes |

Event | 8th IEEE Signal Processing Advances in Wireless Communications, SPAWC 2007 - Helsinki, Finland Duration: 17 Jun 2007 → 20 Jun 2007 |

### Other

Other | 8th IEEE Signal Processing Advances in Wireless Communications, SPAWC 2007 |
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Country | Finland |

City | Helsinki |

Period | 17/6/07 → 20/6/07 |

### Fingerprint

### ASJC Scopus subject areas

- Signal Processing
- Engineering(all)

### Cite this

*SPAWC 2007 - 8th IEEE Workshop on Signal Advances in Wireless Communications*[4401288]

**A blind carrier frequency offset estimation scheme for OFDM systems with constant modulus signaling.** / Xiang, Nian Zeng; Ghrayeb, Ali.

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

*SPAWC 2007 - 8th IEEE Workshop on Signal Advances in Wireless Communications.*, 4401288, 8th IEEE Signal Processing Advances in Wireless Communications, SPAWC 2007, Helsinki, Finland, 17/6/07.

}

TY - GEN

T1 - A blind carrier frequency offset estimation scheme for OFDM systems with constant modulus signaling

AU - Xiang, Nian Zeng

AU - Ghrayeb, Ali

PY - 2007

Y1 - 2007

N2 - This paper presents a new blind carrier frequency offset estimation scheme for orthogonal frequency division multiplexing (OFDM) systems with constant modulus (CM) signaling. We consider both single-input single-output (SISO) systems and multiple-input multiple-output (MIMO) systems with orthogonal space-time block coding. The proposed scheme is based on the reasonable assumption that the number of resolvable multipaths is much smaller than the number of subcarriers, which implies that the channel frequency response on two consecutive sub-carriers is approximately the same. Based on this, we propose cost functions which minimize the difference of the signal power between neighboring subcarriers. We prove the identiflability of the proposed scheme and show that significant performance improvements with low complexity can be achieved, all relative to existing estimation schemes.

AB - This paper presents a new blind carrier frequency offset estimation scheme for orthogonal frequency division multiplexing (OFDM) systems with constant modulus (CM) signaling. We consider both single-input single-output (SISO) systems and multiple-input multiple-output (MIMO) systems with orthogonal space-time block coding. The proposed scheme is based on the reasonable assumption that the number of resolvable multipaths is much smaller than the number of subcarriers, which implies that the channel frequency response on two consecutive sub-carriers is approximately the same. Based on this, we propose cost functions which minimize the difference of the signal power between neighboring subcarriers. We prove the identiflability of the proposed scheme and show that significant performance improvements with low complexity can be achieved, all relative to existing estimation schemes.

UR - http://www.scopus.com/inward/record.url?scp=48049117552&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=48049117552&partnerID=8YFLogxK

M3 - Conference contribution

SN - 1424409551

SN - 9781424409556

BT - SPAWC 2007 - 8th IEEE Workshop on Signal Advances in Wireless Communications

ER -