A novel reception method to mitigate frequency offset in OFDM receivers

Author

Seyedi, Alireza ; Saulnier, Gary J.

Author_Institution

Dept. of ECSE, Rensselaer Polytech. Inst., Troy, NY, USA

Volume

4

fYear

2003

fDate

11-15 May 2003

Firstpage

2355

Abstract

A novel reception method for OFDM systems, based on the use of multiple local oscillators at the receiver is proposed. In this method the received signal is down-converted using multiple oscillators with slightly different frequencies. The down-converted signals are then combined before the OFDM demodulation takes place. The signal-to-inference ratio and bit error rate performance of the proposed system has been obtained and compared to those of the existing systems. It has been shown that a higher frequency offsets the proposed method can provide better performance.

Keywords

OFDM modulation; error statistics; frequency estimation; radio receivers; radiofrequency oscillators; reception; BER; OFDM demodulation; OFDM receivers; SIR; bit error rate; down-converted signals; frequency offset; multiple local oscillators; multiple oscillators; novel reception method; orthogonal frequency division multiplexing; signal-to-inference ratio; Bandwidth; Bit error rate; Demodulation; Frequency domain analysis; Frequency estimation; Interference; Local oscillators; OFDM modulation; Transmitters; Wireless networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2003. ICC '03. IEEE International Conference on

Print_ISBN

0-7803-7802-4

Type

conf

DOI

10.1109/ICC.2003.1204307

Filename

1204307