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[OM] Re: [OT] Dealing with weak wireless network signals

Subject: [OM] Re: [OT] Dealing with weak wireless network signals
From: "Jez Cunningham" <jez@xxxxxxxxxxxxxx>
Date: Wed, 28 May 2008 09:02:46 +0200
http://www.pcmag.com/encyclopedia_term/0,2542,t=MIMO&i=47052,00.asp

 ARCHITECTURE AND ADVANTAGES OF MULTIPLE ANTENNA TECHNOLOGIES

                          Compared to
                         Single Antenna
                         Technologies

     Transmit  Receive   Data
Type  Antennas  Antennas  Rate     Distance
MIMO  Multiple  Multiple  Greater  Greater range
MISO  Multiple  Single    Same     Same range but
More Reliable
SIMO  Single    Multiple  Same     Greater range
  On Tue, May 27, 2008 at 10:08 PM, Moose <olymoose@xxxxxxxxx> wrote:
> Jez Cunningham wrote:
>> I haven't studied it but I understand that a MIMO device uses multiple
antennas that are combined to steer the directionality towards the
transmitter.  I recall claims that they can improve the range.
>> I have a draft-N router with MIMO and a regular laptop without and it
certainly communicates better (faster) then my old B-router.  But that could
be N.  Or the router.
>>
> Not saying that other factors couldn't be at work... But simply
> switching from a B router to a G or N  router with a G laptop increases
> speed from 11 to 54 mbps, almost 5x the speed. On the other hand,
> switching from a G to N router with a G laptop won't increase the speed.
> Add a USB N adapter to the laptop to see WiFi  speed up some more.
>
> That's all assuming a decent signal/connection. Better antenna
> performance wouldn't change the basic speed, but could increase the
> distance at which it could be reached.
>> Anyway I don't think it can make things worse good luck.
>>
> No, it just probably isn't worth any price premium for the specific
> question originally at hand.
>
> Moose
>
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