Paper Info
Title
Performance Of Pre-Fft Type Mmse Adaptive Array Antenna With Iterative Weight Update In Presence Of Sporadic Intra-System Interference
Abstract
This paper introduces our proposed pre-FFT type MMSE-AAA for an OFDM packet transmission system to suppress sporadic interference. The AAA scheme controls an antenna weight to minimize the mean square error between its output signals of two periods with identical transmitted waveform and iterates the weight updating process in an OFDM[ symbol to rapidly converge the weight. The average PER performance of the proposed AAA with the presence of a sporadic inter-system/intra-system interference signal is evaluated through computer simulations that assume an exponentially decaying 12-path LOS fading channel and IEEE 802.11a data frame transmission. Simulation results show that the proposed AAA can effectively suppress sporadic inter-system interference that is irrelevant to its arrival timing. Sporadic intra-system interference can also be suppressed by the proposed AAA more efficiently than inter-system interference as long as the interference arrives between 13% and 90% of the OFDM symbol duration after the beginning of an OFDM symbol of the desired signal.
Year
DOI
Venue
2009
10.1587/transcom.E92.B.1852
IEICE TRANSACTIONS ON COMMUNICATIONS
Keywords
Field
DocType
pre-FFT type adaptive array antenna, sporadic interference suppression, OFDM, indoor LOS propagation, packet transmission, IEEE 802.11a
Signal processing,IEEE 802.11a-1999,Telecommunications,Data transmission,Computer science,Fading,Waveform,Algorithm,Computer network,Antenna array,Interference (wave propagation),Orthogonal frequency-division multiplexing
Journal
Volume
Issue
ISSN
E92B
5
0916-8516
Citations 
PageRank 
References 
1
0.40
3
Authors
3
Name
Order
Citations
PageRank
Kazuto Yano1189.01
Makoto Taromaru2258.96
Masazumi Ueba3186.96