NDLI: Disconnection Probability Improvement by Using Artificial Multi Reflectors for Millimeter-Wave Indoor Wireless Communications

Content Provider	IEEE Xplore Digital Library
Author	Sawada, H. Takahashi, S. Kato, S.
Copyright Year	1963
Abstract	In order to solve a key problem with multi-Gbps transmission in the 60 GHz band—communication interruption by human body crossing, this paper proposes a method to create more reflected waves by installing artificial reflector(s) in two-dimensional arrangements; we show that it reduces the disconnection probability from 80 to 20% (with one artificial reflector) and from 80 to 5% (with two reflectors). The interruption by human crossing is modeled and locations of transmitters and receivers are freely set on any node of a 50 centimeter grid (room sizes are defined by IEEE802.11ad) to get statistically meaningful data. Computer simulations are carried out with various TX and RX antenna HPBWs (Half Power Beam Width), several receiver sensitivities corresponding to 3 Gbps to 0.5 Gbps transmission and assuming a fixed TX antenna direction and a beam-forming receiver antenna that can track the incoming reflected wave(s) in the case of LOS (Line of sight) path interruption. The required minimum reflector radius and disconnection probability can be estimated from the chart described herein given the diagonal dimension of the room and data rate as inputs. By using the chart, the improvement in disconnection probability achieved by installing reflectors can be estimated easily. The improvements by the proposed method are generally applicable to similar indoor communications environments.
Sponsorship	IEEE Antennas and Propagation Society
Starting Page	1868
Ending Page	1875
Page Count	8
File Size	2154460
File Format	PDF
ISSN	0018926X
Volume Number	61
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-04-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Reflector antennas Sensitivity Interrupters Humans Receiving antennas ray tracing Beam steering electromagnetic reflection millimeter wave communication millimeter wave propagation
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering

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