mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-27 02:24:35 +02:00
923a5cc674
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@12992 3c298f89-4303-0410-b956-a3cf2f4a3e73
88 lines
3.6 KiB
Plaintext
88 lines
3.6 KiB
Plaintext
# MadWifi configuration
|
|
|
|
config MADWIFI_DEBUG
|
|
bool "Enable compilation of debugging features"
|
|
depends on EXPERIMENTAL && PACKAGE_kmod-madwifi
|
|
default n
|
|
|
|
choice
|
|
prompt "Madwifi version"
|
|
depends on PACKAGE_kmod-madwifi
|
|
default MADWIFI_STABLE
|
|
help
|
|
This option allows you to select the version of MadWifi to be built.
|
|
|
|
config MADWIFI_STABLE
|
|
bool "Use the OpenWrt stable version of madwifi"
|
|
|
|
config MADWIFI_UPSTREAM
|
|
depends !LINUX_2_6_26
|
|
depends !TARGET_atheros
|
|
bool "Use the upstream release version 0.9.4"
|
|
|
|
endchoice
|
|
|
|
choice
|
|
prompt "Rate control algorithm selection"
|
|
depends on PACKAGE_kmod-madwifi
|
|
default MADWIFI_RCA_MINSTREL
|
|
help
|
|
This option controls how MadWifi chooses its bitrate.
|
|
|
|
config MADWIFI_RCA_MINSTREL
|
|
bool "Use the Minstrel rate control algorithm"
|
|
help
|
|
This code is takes a wandering minstrel approach. Wander around the
|
|
different rates, singing wherever you can. And then, look at the
|
|
performance, and make a choice. Note that the wandering minstrel will
|
|
always wander in directions where he/she feels he/she will get paid
|
|
the best for his/her work.
|
|
|
|
config MADWIFI_RCA_ONOE
|
|
bool "Use the Onoe rate control algorithm"
|
|
help
|
|
Onoe is a credit based RCA where the value of the credit is determined
|
|
by the frequency of successful, erroneous and retransmissions
|
|
accumulated during a fixed invocation period of 1000 ms. If less than
|
|
10% of the packets need to be retransmitted at a particular rate, Onoe
|
|
keeps increasing its credit point till the threshold value of 10 is
|
|
reached. At this point, the current transmission rate is increased to
|
|
the next available higher rate and the process repeated with credit
|
|
score of zero. Similar logic holds for deducting the credit score and
|
|
moving to a lower bit-rate for failed packet
|
|
transmission/retransmission attempts. However, once a bit-rate has
|
|
been marked as failure in the previous attempt, Onoe will not attempt
|
|
to select that bit-rate until 10 seconds have elapsed since the last
|
|
attempt. Due to the manner in which it operates, Onoe is conservative
|
|
in rate selection and is less sensitive to individual packet failure.
|
|
|
|
config MADWIFI_RCA_AMRR
|
|
bool "Use the AMRR rate control algorithm"
|
|
help
|
|
AMRR uses Binary Exponential Backoff (BEB) technique to adapt the
|
|
length (threshold) of the sampling period used to change the values of
|
|
bit-rate and transmission count parameters. It uses probe packets and
|
|
depending on their transmission status adaptively changes the threshold
|
|
value. The adaptation mechanism ensures fewer failed
|
|
transmission/retransmission and higher throughput by not switching to a
|
|
higher rate as specified by the backoff mechanism. In addition to this,
|
|
the AMRR employs heuristics to capture the short-term variations of the
|
|
channel by judiciously setting the rate and transmission count
|
|
parameters.
|
|
|
|
config MADWIFI_RCA_SAMPLERATE
|
|
bool "Use the SampleRate rate control algorithm"
|
|
help
|
|
SampleRate decides on the transmission bit-rate based on the past
|
|
history of performance; it keeps a record of the number of successive
|
|
failures, the number of successful transmits and the total transmission
|
|
time along with the destination for that bit-rate. Stale samples are
|
|
removed based on a EWMA windowing mechanism. If in the sampling
|
|
process, no successful acknowledgment is received or the number of
|
|
packets sent is multiple of 10 on a specific link, it transmits the
|
|
packet with the highest rate which has not failed 4 successive times.
|
|
Other than that it transmits packets at the rate which has the lowest
|
|
average transmission time.
|
|
|
|
endchoice
|