Title :
Interference cancellation in OFDM with parametric modeling of the antenna array weights
Author :
Kuzminskiy, Alexandr M.
Author_Institution :
Lucent Technol. Bell Labs, Swindon, UK
Abstract :
The problem of antenna array interference cancellation in an OFDM system is addressed. Joint estimation of the weight coefficients for all subcarriers is exploited. The technique is based on parametric modeling of the weights in the frequency domain. A particular linear model of the weights is proposed. The training-based and semi-blind optimization criteria and algorithms are developed. Their ability is demonstrated by simulations based on different HIPERLAN/2 propagation channels.
Keywords :
OFDM modulation; adaptive antenna arrays; interference suppression; mobile radio; optimisation; parameter estimation; wireless LAN; HIPERLAN/2; OFDM system; adaptive antenna arrays; frequency domain; interference cancellation; joint estimation; linear model; parametric modeling; propagation channels; semi-blind optimization; subcarrier weight coefficients; training based optimization; Antenna arrays; Antennas and propagation; Data models; Frequency domain analysis; Interference cancellation; Interpolation; OFDM; Parametric statistics; Radiofrequency interference; Time frequency analysis;
Conference_Titel :
Signals, Systems and Computers, 2001. Conference Record of the Thirty-Fifth Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-7803-7147-X
DOI :
10.1109/ACSSC.2001.987758
