package/madwifi/Config.in

   1 # MadWifi configuration
   2
   3 config MADWIFI_DEBUG
   4         bool "Enable compilation of debugging features"
   5         depends on EXPERIMENTAL && PACKAGE_kmod-madwifi
   6         default n
   7
   8 choice
   9         prompt "Madwifi version"
  10         depends on PACKAGE_kmod-madwifi
  11         default MADWIFI_STABLE
  12         help
  13           This option allows you to select the version of MadWifi to be built.
  14
  15 config MADWIFI_STABLE
  16         bool "Use the OpenWrt stable version of madwifi"
  17
  18 config MADWIFI_TESTING
  19         depends BROKEN
  20         bool "Use the OpenWrt testing version of madwifi"
  21
  22 config MADWIFI_UPSTREAM
  23         depends !LINUX_2_6_26
  24         depends !TARGET_atheros
  25         bool "Use the upstream release version 0.9.4"
  26
  27 endchoice
  28
  29 choice
  30         prompt "Rate control algorithm selection"
  31         depends on PACKAGE_kmod-madwifi
  32         default MADWIFI_RCA_MINSTREL
  33         help
  34           This option controls how MadWifi chooses its bitrate.
  35
  36 config MADWIFI_RCA_MINSTREL
  37         bool "Use the Minstrel rate control algorithm"
  38         help
  39           This code is takes a wandering minstrel approach. Wander around the
  40           different rates, singing wherever you can. And then, look at the
  41           performance, and make a choice. Note that the wandering minstrel will
  42           always wander in directions where he/she feels he/she will get paid
  43           the best for his/her work.
  44
  45 config MADWIFI_RCA_ONOE
  46         bool "Use the Onoe rate control algorithm"
  47         help
  48           Onoe is a credit based RCA where the value of the credit is determined
  49           by the frequency of successful, erroneous and retransmissions
  50           accumulated during a fixed invocation period of 1000 ms. If less than
  51           10% of the packets need to be retransmitted at a particular rate, Onoe
  52           keeps increasing its credit point till the threshold value of 10 is
  53           reached. At this point, the current transmission rate is increased to
  54           the next available higher rate and the process repeated with credit
  55           score of zero. Similar logic holds for deducting the credit score and
  56           moving to a lower bit-rate for failed packet
  57           transmission/retransmission attempts. However, once a bit-rate has
  58           been marked as failure in the previous attempt, Onoe will not attempt
  59           to select that bit-rate until 10 seconds have elapsed since the last
  60           attempt. Due to the manner in which it operates, Onoe is conservative
  61           in rate selection and is less sensitive to individual packet failure.
  62
  63 config MADWIFI_RCA_AMRR
  64         bool "Use the AMRR rate control algorithm"
  65         help
  66           AMRR uses Binary Exponential Backoff (BEB) technique to adapt the
  67           length (threshold) of the sampling period used to change the values of
  68           bit-rate and transmission count parameters. It uses probe packets and
  69           depending on their transmission status adaptively changes the threshold
  70           value. The adaptation mechanism ensures fewer failed
  71           transmission/retransmission and higher throughput by not switching to a
  72           higher rate as specified by the backoff mechanism. In addition to this,
  73           the AMRR employs heuristics to capture the short-term variations of the
  74           channel by judiciously setting the rate and transmission count
  75           parameters.
  76
  77 config MADWIFI_RCA_SAMPLERATE
  78         bool "Use the SampleRate rate control algorithm"
  79         help
  80           SampleRate decides on the transmission bit-rate based on the past
  81           history of performance; it keeps a record of the number of successive
  82           failures, the number of successful transmits and the total transmission
  83           time along with the destination for that bit-rate. Stale samples are
  84           removed based on a EWMA windowing mechanism. If in the sampling
  85           process, no successful acknowledgment is received or the number of
  86           packets sent is multiple of 10 on a specific link, it transmits the
  87           packet with the highest rate which has not failed 4 successive times.
  88           Other than that it transmits packets at the rate which has the lowest
  89           average transmission time.
  90
  91 endchoice