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Q: Wireless 2.4Ghz ( No Answer,   1 Comment )
Question  
Subject: Wireless 2.4Ghz
Category: Computers > Wireless and Mobile
Asked by: swiv1980-ga
List Price: $50.00
Posted: 08 Nov 2005 00:10 PST
Expires: 08 Dec 2005 00:10 PST
Question ID: 590430
Hi 

I need to know about 2.4Ghz Wireless. 

I am about to set up a wireless network using mostly D-Link Products.
The D-Link DWL-2100AP Access Point in particular.

My question is Related to repeating the 2.4Ghz main acess point.
 (for examples sake it has a name or SSID of ---CENTRE---).

I have read that 2.4Ghz Repeaters should be used only as necesary. And
that if i was to set up one main access point (called Centre) with
lets say 5 repeaters. I would effectively be creating allot of Network
Traffic.

My Question is how much traffic would it be? Would it still be
acceptable in terms of usablilty? Would it affect how long
www.google.com would take to come up Internet Explorer? If my current
ping was 20Ms would it become 30Ms or 300Ms?

There is a good reason for me wanting to use only repeaters. If i
don't use them the job could double in cost. And it is already quite
high.

Clarification of Question by swiv1980-ga on 08 Nov 2005 15:53 PST
So if i had a central Access Point and 5 repeaters surrounding it.
None of them overlapping. Would there still be the traffic.

Do you have any evidence, or related articles that can help me to make
my decision?

Tell me more about CPL also please. I have never heard of it. Is it
802.11b/g compatible?
Answer  
There is no answer at this time.

Comments  
Subject: Re: Wireless 2.4Ghz
From: jmfaure-ga on 08 Nov 2005 00:51 PST
 
My Question is how much traffic would it be? 
- if you put repeaters too close, there will be overlapping on-air
traffic resulting in high rate of collisions.

Would it still be acceptable in terms of usablilty? 
- I used to manage my home WLAN network with 1 repeater and it was
usable, but performance was just acceptable.
- with too many repeaters too close it won't be usable.

Would it affect how long www.google.com would take to come up Internet Explorer? 
- with too many repeaters too close, there will be a lot of packet
loss resulting in erratic www.google.com access (sometimes the page
will never come).

If my current ping was 20Ms would it become 30Ms or 300Ms?
- with too many repeaters too close ming will be 20ms when low traffic
and 1500ms when high traffic (high collision rate).

From my experience, 5 repeaters is definetly a case I would never
install because overlapping transmissions will create high collision
rate and poor performance.

Instead I'd go for a CPL network as a backbone with distant Wireless
repeaters to ensure no overlapping on-air traffic. Even 5 repeaters if
distant enough.

I moved from "Wireless AP + 1 repeater" to "CPL backbone with 1
repeater" and it's much better performance. Now High Speed 85Mpbs CPL
are affordable (I mix devolo CPL with D-Link wireless).

Hope this helps.

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