David Young <[EMAIL PROTECTED]> wrote:
|On Mon, Oct 20, 2003 at 07:03:44PM -0400, Dan Lanciani wrote:
|> "Moebius" <[EMAIL PROTECTED]> wrote:
|>
|> |Let me know if 25km on a radio that does not allow adjustment of the 802.11b
|> |protocol for distance works... Supposedly things should stop working for an
|> |unadulterated 802.11b radio at that distance..
|>
|> Should they really stop working or just degrade? It seems like it would
|> be a complicated function of just when/if the extraneous retransmits collide
|> with the acks.
|
|Each packet will be ordinarily retransmitted up to the retransmission
|limit, so throughput will degrade a lot.
But is that the most common outcome? (I admit that I haven't tried to
work out the details, and it would probably require considering a distribution
of packet sizes...)
|(I guess that for both the "right" length of data packet and the
|"right" distance between stations, the 802.11 ACK sent in response to
|the Nth transmission will be received as acknowledgement for the N+Kth
|transmission, so there will be fewer retransmissions than the limit.)
Exactly. Which is why I said it is probably a complex function of just
when/if the collisions (in the sense of the transmitter being on when
you need to hear an ACK) happen.
Dan Lanciani
[EMAIL PROTECTED]
--
general wireless list, a bawug thing <http://www.bawug.org/>
[un]subscribe: http://lists.bawug.org/mailman/listinfo/wireless
