nanog mailing list archives
Re: 10 Mbit/s problem in your network
From: Warren Bailey <wbailey () satelliteintelligencegroup com>
Date: Tue, 26 Feb 2013 17:19:48 +0000
Perhaps I don't understand.. Generally in wireless we look at two things; bits to hertz and noise components. If the noise is LESS and the carrier is the same power spectral density, you will have a greater c/n. I've always wondered why wifi didn't implement an array of modcods which can be used with a given system. That way, when you attenuate you have lower efficiency modulation and coding which will allow you to deal with fades better. Maybe they do us it and I'm just not hip to 802.11?
From my Android phone on T-Mobile. The first nationwide 4G network.
-------- Original message -------- From: Rob Seastrom <rs () seastrom com> Date: 02/26/2013 3:40 AM (GMT-08:00) To: Owen DeLong <owen () delong com> Cc: Warren Bailey <wbailey () satelliteintelligencegroup com>,NANOG <nanog () nanog org> Subject: Re: 10 Mbit/s problem in your network Owen DeLong <owen () delong com> writes:
N on 5Ghz takes advantage of the increased bandwidth of the 5Ghz channel where A merely replicated G on 5Ghz for all practical purposes.
You have that backwards, actually, but the legacy support in 802.11g for 802.11b clients does represent a performance hit even in the absence of b-only clients, so claiming that a and g are equivalent is only true on paper. -r (802.11a user before 802.11g, still love the relatively unoccupied 5 ghz spectrum)
Current thread:
- Re: 10 Mbit/s problem in your network, (continued)
- Re: 10 Mbit/s problem in your network Owen DeLong (Feb 18)
- Re: 10 Mbit/s problem in your network Mikael Abrahamsson (Feb 18)
- Re: 10 Mbit/s problem in your network joel jaeggli (Feb 18)
- Re: 10 Mbit/s problem in your network Owen DeLong (Feb 18)
- RE: 10 Mbit/s problem in your network Frank Bulk (Feb 24)
- Re: 10 Mbit/s problem in your network Owen DeLong (Feb 25)
- Re: 10 Mbit/s problem in your network Warren Bailey (Feb 25)
- Re: 10 Mbit/s problem in your network Owen DeLong (Feb 25)
- Re: 10 Mbit/s problem in your network Warren Bailey (Feb 25)
- Re: 10 Mbit/s problem in your network Rob Seastrom (Feb 26)
- Re: 10 Mbit/s problem in your network Warren Bailey (Feb 26)
- Re: 10 Mbit/s problem in your network Neil Harris (Feb 26)
- Re: 10 Mbit/s problem in your network joel jaeggli (Feb 25)
- RE: 10 Mbit/s problem in your network Frank Bulk (iname.com) (Feb 25)
- Re: 10 Mbit/s problem in your network Constantine A. Murenin (Feb 09)
- Re: 10 Mbit/s problem in your network Masataka Ohta (Feb 11)
- Re: 10 Mbit/s problem in your network James Cloos (Feb 16)
- Re: 10 Mbit/s problem in your network JP Velders (Feb 10)
- Re: 10 Mbit/s problem in your network Måns Nilsson (Feb 10)