Preamble reconstruction method for impulsive interference avoidance in MIMO-OFDM receivers

Author

He, Tsung-Yeh ; Lin, You-Hsien ; Tsai, Tsung-yu ; Hsu, Terng-Yin

Author_Institution

Inst. of Comput. Sci. & Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan

fYear

2012

fDate

23-27 July 2012

Firstpage

132

Lastpage

136

Abstract

For wireless packet transmissions, preambles are essential to make packet synchronization function. Impulsive interference not only distorts datum, but also degrades link reliability. To deal with such distortions, a peak-to-average ratio (PAPR) detection is adopted to search impulsive positions and the convolution with the estimated time-domain response is used to recovery the distorted preambles. Simulations of a 2×2 MIMO-OFDM system with RF impairments in frequency-selective fading indicate that the SNR loss is about 2.5 dB ~ 4.6 dB to ensure synchronization working at a signal-to-impulse ratio (SIR) of -10 dB.

Keywords

MIMO communication; OFDM modulation; convolution; interference suppression; radio receivers; radiofrequency interference; synchronisation; telecommunication network reliability; time-domain analysis; MIMO-OFDM receiver system; PAPR detection; RF impairments; SNR loss; convolution; estimated time-domain response; frequency-selective fading; impulsive interference avoidance; impulsive positions; link reliability; packet synchronization function; peak-to-average ratio detection; preamble reconstruction method; signal-to-impulse ratio; wireless packet transmissions; Fading; Gain control; Interference; Peak to average power ratio; Synchronization; Wireless communication; Impulsive Interference Avoidance; MIMO-OFDM; Preamble Reconstruction; RF impairment;

fLanguage

English

Publisher

ieee

Conference_Titel

Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC), 2012

Conference_Location

New Taipei City

Print_ISBN

978-1-4673-1867-9

Type

conf

DOI

10.1109/CSQRWC.2012.6294968

Filename

6294968