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Technology
overview of HomeRF 2.0
15-May-2001
This year Proxim and other companies are putting
some heavy support behind an improved version of HomeRF (version 2.0) that
will likely carve itself a healthy niche in the home networking market.
Like its predecessor, HomeRF 2.0 has been engineered with the home user in
mind so setup and use is much easier than other wireless solutions like
802.11b.
 As a networking standard, HomeRF 2.0 strives to be
easy to use without compromising a robust feature set. Use of a HomeRF 2.0
network will be a transparent function of your computing environment. The
HomeRF 2.0 stanadard includes support for advanced networking features
like security, interference dodging and quality of service all
transparent to the end user.
HomeRF 2.0 is not just a networking standard. With
HomeRF 2.0, a wireless home network can also become a wireless multi-media
platform. HomeRF 2.0 includes support for up to 4 voice wireless phone
handsets that operate just like your standard phone line with Caller ID
and all the other features you are used too. As the technology rolls out
this year, we should see some exciting developments in this area.
Expect to see the first HomeRF
2.0 devices hit the shelves some time in Q3 2001.
HomeRF 2.0 Technology Specifics
Improved Speed
HomeRF 1.0 ran at 1.6Mbps. That
speed was fine for Internet sharing but copying large files like MP3s was
a tedious job. HomeRF 2.0 increases the bandwidth to 10Mbps - the same
speed as standard wired Ethernet. To understand network
speeds click here
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Security
HomeRF 2.0s security model is
relatively transparent to the end user and very secure. HomeRF 2.0 uses a
technology called frequency hopping. 
This keeps the data channel shifting from one
frequency to another many times a second. Frequency hopping makes it very
hard for someone to eavesdrop on your network. Also, HomeRF 2.0 has
introduced the concept of a network password needed to join your
network. Without knowing the password peripherals will be unable to
communicate with your network. Lastly, the HomeRF 2.0 standard includes
support for 128 bit encryption so all the data traveling across the radio
waves is scrambled.
Interferance Resistance
802.11b, or wireless Ethernet, is subject to
interference from 2.4GHz devices like some coreless phones. HomeRF also
uses 2.4GHz but will track the particular kinds of interference in your
home and work around them. It does this by figuring out what data
channel the interference is on, and then telling the frequency hopper to
not use that channel. HomeRF 2.0 does NOT interfere with Bluetooth
technologies.
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