On Thu, Jun 30, 2011 at 09:31:43PM -0500, Ben West wrote: > This write-up appears to suggest that things like TCP ACK might end up > limiting your throughput down below what is useful. > > http://www.radio-active.net.au/web/80211/distance.html > > I'm guessing you would need to abandon TCP for such a long link.
TCP will work fine at such distances, but there can be link-layer problems. The per-frame acknowledgement in 802.11 was not a great idea even in 802.11b times. ISTR that options were introduced with 802.11n to use fewer acks. Block ACKs I think that it's called? You can also diverge from strict 802.11 constants or protocol to make such a link work. For years, NICs have let you fiddle with the SIFS and other parameters. Dave -- David Young OJC Technologies [email protected] Urbana, IL * (217) 344-0444 x24 _______________________________________________ wsfii-discuss mailing list [email protected] http://lists.okfn.org/mailman/listinfo/wsfii-discuss
