[1st-mile-nm] Intel's Long-Distance Wi-Fi

[peter]

Hi Sebastian

Loved your piece, and you are right, its so sad when companies make huge 
amount of money from hype " Its just radio indeed  " spot on

First wif fi was the answer to all the worlds problems then it becomes 
long distance wif fi  ( upgrade upgrade same crappy service ) then the 
ever mystifying Wimax then long distance wi max and on and on.

I would love to chime in ( U2 Richard )and give us you full take on 
WIMAX -- now that all the big companies like Sprint and Clearwire are 
abandoning it like crazy

What we really need is fiber lots and lots of fiber and nothing but fiber

( : ( : pete


Peter Baston

*IDEAS*

/www.ideapete.com/ <http://www.ideapete.com/>


 

 



Richard Lowenberg wrote:
> In response to Tom's posting, I've been hoping for the past couple of days that
> no one would post to the 1st-Mile list about the Intel long distance wifi
> transmission announcement.   It is less than meets the eye.   Following is an
> informative posting from another list, about this.   Be careful of tech-hype.
> rl
>
> ----- Forwarded message from sebastian at less.dk -----
>     Date: Thu, 20 Mar 2008 09:55:43 +0200
>     From: sebastian buettrich <sebastian at less.dk>
>
> Dear all,
> i am normally an interested but quiet reader on this list,
> but this time around i would like to comment, since i am specializing in
> community wireless networking
>
> On Wed, 2008-03-19 at 05:35 -0400, Ian Thomson wrote:
>   
>> Hi All,
>> This is a very confusing press release. Many WIFI practitioners are today
>>     
> getting distances of 30 to 60 kms with parabolic antenna. What is so special
> about the Intel development?
>   
>> If it is just that is drops requests to resend packets, then this is doubtful.
>>     
> Any radio engineer will tell you that radio is bad for dropping packets and
> resending them is necessary to recover the full data.
>
> It is absolutely correct -
>
> wireless practicioners have been doing up to 300+ km already and the
> current world record is approx 380 km
>
> http://www.eslared.org.ve/articulos/Long%20Distance%20WiFi%20Trial.pdf
>
> Distances up to 100 km have never been *that* great challenge and can be
> done and are frequently done by wireless practicioners - and a lot
> cheaper than USD 1000 - from around USD 200-300 in wireless gear.
>
> For the tech minded, some detail:
>
> Going above 100 km, the shortcomings of the MAC 802.11 layer have been
> the challenge - in simple words, the "hello" and "acknowledge" timeouts
> between the wireless nodes.
> This is what the Intel product addresses, not by dropping the ACL
> altogether, but by using TDMA - if you are interested in more techie
> details
>
> The statements made in the article,
>
> ""If you take standard Wi-Fi and focus it," Galinovsky says, "you can't
> get past a few kilometers.""
>
> and in the Intel video can only be called misleading and simply wrong.
> So, it s more of a PR cloud, misleading people, than "a huge step
> forward".
>
> hope this helps,
> best to all,
>
> sebastian
>
> ------------------------------------
> dr. sebastian buettrich
> sebastian at wire.less.dk
>
> a free book on wireless networking in the developing world - 2nd edition out
> now!
>
> http://www.wndw.net
> http://wire.less.dk
> http://thewirelessroadshow.org
> ------------------------------------
>
> Richard Lowenberg
> 1st-Mile Institute
> P.O. Box 8001, Santa Fe, NM 87504
> 505-989-9110;   505-603-5200 cell
> rl at 1st-mile.com  www.1st-mile.com
>
>
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