#3 Mac802_11 random backoff patch

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nobody
ns-2 (14)
5
2005-12-30
2005-12-30
No

-------- Original Message --------
Subject: [Ns-developers] Mac802_11 random backoff patch
Date: Tue, 11 Oct 2005 22:59:13 +0200
From: Enrico Minack <enrico-minack@gmx.de>
To: ns-developers@ISI.EDU

Dear ns-developers,

as announced on the ns-users mailing list some months
ago there is an
inaccuracy between the IEEE 802.11 code and the
specification. The
random backoff is selected out of [0, cw_), but the
specification
_includes_ cw_, thus it should be [0, cw_]. This bug
leads to a better
throughput than actually possible. I'd highly
appreciate any comment on
that. See attached a patch that modifies all random
backoff selection of
Mac802_11.

regards,
Enrico M.

ieee 802.11 random backoff patch:
http://www.maniac-site.de/download/ns-2.28-ieee802_11_random_backoff.patch

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