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