Question about 5GHz channel Bonding

Post new topic   Reply to topic    DD-WRT Forum Forum Index -> Broadcom SoC based Hardware
Author Message
Masterman
DD-WRT Guru


Joined: 24 Aug 2009
Posts: 2057
Location: South Florida

PostPosted: Sun Oct 17, 2010 15:39    Post subject: Question about 5GHz channel Bonding Reply with quote
I have searched to my wits end and cannot determine the advantages, disadvantages of the 100's of channel frequencies in the 5GHz band.

Since 5GHz has WAY less range and penetration than 2.4GHz, is it logical to assume that the lower the frequency (i.e 5.280 GHz on channel 56) has more range than say 5.805 (channel 161)?

I have played around with the settings (changing channels, Xmit pwr), and still cannot determine if there is any benefit to change the channel to a higher (or a lower) frequency for better range ...

My setup consists of a RT-N16 as main DHCP with wireless disabled, an E2000 physically linked to it and serving a WRT610nv1 via a WDS LAN node. The 5GHz WDS'ed radios on the E2000 and WRT610nv1 are on channel 56 upper providing a 300Mbps physical link to serve an Xbox 360, a PC and an Asus Oplay HD. The 2.4 GHz radio in the WRT610N is my dedicated WAP for my iphone, printer and various other devices..

Anyone have any thoughts on this?


Thanks

_________________
Optware, the Right Way
Asus WL520gU
Asus WL500gPv2 x2
Asus WL500W
Asus RT-N10
Asus RT-N12
Asus RT-N16 x3
D-Link DIR-825B
Linksys WRT320Nv1
Linksys WRT600Nv1.1
Linksys WRT610Nv1
Linksys E2000
Netgear WNDR3300
TP-Link WR1043ND
Sponsor
buddee
DD-WRT Guru


Joined: 06 Feb 2010
Posts: 7382
Location: Little Rock

PostPosted: Sun Oct 17, 2010 16:50    Post subject: Re: Question about 5GHz channel Bonding Reply with quote
Masterman wrote:

Since 5GHz has WAY less range and penetration than 2.4GHz, is it logical to assume that the lower the frequency (i.e 5.280 GHz on channel 56) has more range than say 5.805 (channel 161)?


In my EXP in this, i had different results with different channels used, IE seemed the higher channels gave me better results, not much better, but the percent meters would raise atleast 1-2% more if i used higher channels, but to be honest, i'm like you in this matter because its not significant enough to notice around my house because all the other AP's around me use 2.4 basically making 5Ghz pretty much wide open, but in the measured meter readings on both dd-wrt and DUmeter (for throughput measuring), the higher the channel, the better the result.

Edit: also wanted to note that my using different dual band nic's may have something to play in this as well. currently i use wnda3100 v1 and wusb600n v2 for my 5Ghz adapters, which different adapters gave diff results as well. so no tellin

_________________
Wireless N Config | Linking Routers | DD-WRT Wiki | DD-WRT Builds | Peacock - Broadcom FAQ

Having problems with port forwarding? Check out Port Forward Troubleshooting for more info.
phuzi0n
DD-WRT Guru


Joined: 10 Oct 2006
Posts: 10143

PostPosted: Sun Oct 17, 2010 18:05    Post subject: Reply with quote
Speaking purely about the physics of it, a shorter frequency (longer wavelength) with equal transmit power should attenuate quicker. In the real world there's lots of variables though and the difference between channel frequencies in 5GHz is small so you may experience different results.
_________________
Read the forum announcements thoroughly! Be cautious if you're inexperienced.
Available for paid consulting. (Don't PM about complicated setups otherwise)
Looking for bricks and spare routers to expand my collection. (not interested in G spec models)
Display posts from previous:    Page 1 of 1
Post new topic   Reply to topic    DD-WRT Forum Forum Index -> Broadcom SoC based Hardware All times are GMT

Navigation

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You can attach files in this forum
You can download files in this forum