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EtherLinx™
communication technology provides for the fastest and most cost
effective means of deploying Wi-Fi Hot Spots available today.
With
EtherLinx™ transparent 802.11 firmware and
software-defined radio (SDR) solutions, Hot Spots can be deployed on
demand to any location quickly and provide Wi-Fi connectivity where
other solutions (DSL or Cable) are not available.
The
Wi-Fi Spot™ repeater and Gateway
is installed within
the footprint or at the home to instantly create a WiFi hotspot. A
metropolitan WiFi network can easily be built by deploying multiple
EtherLinx Dual-mode WiFi Repeaters. This Dual-mode WiFi repeater
leverages the EtherLinx broadcast then converts it to standard WiFi
(802.11b or g) so that a laptop or PDA users can have instant wireless
access using standard WiFi cards in their computers. The user
doesn't need special hardware or software. The Dual-mode repeater
supports all standard 802.11b/g compatible devices. This capability is
expected to accelerate the ability for WiFi hotspots to be deployed
quickly and in large numbers.
Wi-Fi
Spot™ Security Through
the use of transparent software, firmware, and data networking
algorithms originally developed for counter-measures and electronic
surveillance techniques on US Military projects, EtherLinx has
developed a 802.11 based software product that enables a high-speed
wireless broadband capability.
At the same time mitigates the interference issue and
provides additional security layers superior to other wireless
methods.
This
technology enables long distance IP
transport
for the Wi-Fi Spot In-a-Box™
Internet Backhaul and alleviates the need for a local DSL, Cable or
other broadband connection .
EtherLinx™
software technology utilizes direct sequence spread spectrum and a
proprietary direct sequence code division multiple access (DS-CDMA /
BPSK /QPSK / and CCK) for secure data transmission that prevents any
type of eavesdropping. EtherLinx™ transparent RF (Radio Frequency) signal, if
seen, appears as background noise. Even this detection can only be
accomplished with very expensive spectrum analyzers and these
devices would not be able to decipher the content or data carried by
the RF signal. A data
signal at the point of transmission is combined with a higher
data-rate bit sequence (also known as a chipping code) that divides
the data according to a spreading ratio.
EtherLinx™ transparent and redundant chipping code helps
the signal resist interference and also enables all of the original
data to be recovered if data bits are damaged or lost during
transmission. EtherLinx™
direct sequence contrasts with the other spread spectrum processes
in that it is far more robust and can cover much longer distances
than competing DS (direct sequence) or FH (frequency hopping) spread
spectrum products available today.
Because
EtherLinx leverages the emerging standards set forth by 802.11 and
other RF technologies in the media access control layer and the
physical layer methods, including coding descriptions and
performance evaluations and scalable data rates, EtherLinx™ technology
provides for secure cost-effective wireless network solutions by
enabling intelligence in standard, low cost CPE (customer premise
equipment). Today spread spectrum is at the heart of the WiFi
standard and has been commercially accepted in the marketplace,
especially in local area wireless networks. 802.11b has become the
standard in WLAN, but as a result of this standard an inherit
weakness has evolved via the new standard " i.e.",
security issues.
It was found that anyone with this technology could join
other networks using the same 802.11 protocols and have access to
their data or eavesdrop on the traffic over these networks without
detection.
The
data networking algorithms used in the EtherLinx solution are the
most secure and advanced in the industry and were designed
specifically to prevent eavesdropping and/ or attacks by hackers.
Latency is minimized while allowing for the use of automatic
repeat request (ARQ) - a protocol for error control in data
transmission. When the receiver detects an error in a packet, it
automatically requests the transmitter to resend the packet.
This process is repeated until the packet is error free or
the error continues beyond a predetermined number of transmissions.
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