DocumentCode :
2126673
Title :
Beam switching support to resolve link-blockage problem in 60 GHz WPANs
Author :
An, Xueli ; Sum, Chin-sean ; Prasad, R. Venkatesha ; Wang, Junyi ; Lan, Zhou ; Wang, Jing ; Hekmat, Ramin ; Harada, Hiroshi ; Niemegeers, Ignas
Author_Institution :
EEMCS, Delft Univ. of Technol., Delft, Netherlands
fYear :
2009
fDate :
13-16 Sept. 2009
Firstpage :
390
Lastpage :
394
Abstract :
In this paper, we propose a solution to resolve link blockage problem in 60 GHz WPANs. Line-of-Sight (LOS) link is easily blocked by a moving person, which is concerned as one of the severe problems in 60 GHz systems. Beamforming is a feasible technique to resolve link blockage by switching the beam path from LOS link to a Non-LOS (NLOS) link. We propose and evaluate two kinds of Beam Switching (BS) mechanisms: instant decision based BS and environment learning based BS. We examine these mechanisms in a typical indoor WPAN scenario. Extensive simulations have been carried out, and our results reveal that combining angle-of-arrival with the received signal to noise ratio could make better decision for beam switching. Our work provides valuable observations for beam switching during point-to-point communication using 60 GHz radio.
Keywords :
beam steering; direction-of-arrival estimation; microwave links; personal area networks; WPAN; angle-of-arrival; beam switching support; frequency 60 GHz; line-of-sight link; link-blockage problem; nonLOS link; point-to-point communication; Array signal processing; Communication switching; Fading; HDTV; High definition video; Humans; Relays; Signal to noise ratio; Streaming media; Switches;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2009 IEEE 20th International Symposium on
Conference_Location :
Tokyo
Print_ISBN :
978-1-4244-5122-7
Electronic_ISBN :
978-1-4244-5123-4
Type :
conf
DOI :
10.1109/PIMRC.2009.5449837
Filename :
5449837
Link To Document :
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