package/madwifi/Config.in

   1 # MadWifi configuration
   2
   3 config MADWIFI_DEBUG
   4         bool "Enable compilation of debugging features"
   5         depends on DEVEL && PACKAGE_kmod-madwifi
   6         default n
   7
   8 config MADWIFI_COMPRESSION
   9         bool "Enable Atheros Super A/G Compression"
  10         depends on PACKAGE_kmod-madwifi
  11         depends !TARGET_ar71xx
  12         default n
  13         help
  14           Enables Atheros Super A/G Hardware Compression Engine.
  15
  16 choice
  17         prompt "Madwifi version"
  18         depends on PACKAGE_kmod-madwifi
  19         default MADWIFI_STABLE
  20         help
  21           This option allows you to select the version of MadWifi to be built.
  22
  23 config MADWIFI_STABLE
  24         bool "Use the OpenWrt stable version of madwifi"
  25
  26 config MADWIFI_UPSTREAM
  27         depends BROKEN
  28         depends !TARGET_atheros
  29         bool "Use the upstream release version 0.9.4"
  30
  31 endchoice
  32
  33 choice
  34         prompt "Rate control algorithm selection"
  35         depends on PACKAGE_kmod-madwifi
  36         default MADWIFI_RCA_MINSTREL
  37         help
  38           This option controls how MadWifi chooses its bitrate.
  39
  40 config MADWIFI_RCA_MINSTREL
  41         bool "Use the Minstrel rate control algorithm"
  42         help
  43           This code is takes a wandering minstrel approach. Wander around the
  44           different rates, singing wherever you can. And then, look at the
  45           performance, and make a choice. Note that the wandering minstrel will
  46           always wander in directions where he/she feels he/she will get paid
  47           the best for his/her work.
  48
  49 config MADWIFI_RCA_ONOE
  50         bool "Use the Onoe rate control algorithm"
  51         help
  52           Onoe is a credit based RCA where the value of the credit is determined
  53           by the frequency of successful, erroneous and retransmissions
  54           accumulated during a fixed invocation period of 1000 ms. If less than
  55           10% of the packets need to be retransmitted at a particular rate, Onoe
  56           keeps increasing its credit point till the threshold value of 10 is
  57           reached. At this point, the current transmission rate is increased to
  58           the next available higher rate and the process repeated with credit
  59           score of zero. Similar logic holds for deducting the credit score and
  60           moving to a lower bit-rate for failed packet
  61           transmission/retransmission attempts. However, once a bit-rate has
  62           been marked as failure in the previous attempt, Onoe will not attempt
  63           to select that bit-rate until 10 seconds have elapsed since the last
  64           attempt. Due to the manner in which it operates, Onoe is conservative
  65           in rate selection and is less sensitive to individual packet failure.
  66
  67 config MADWIFI_RCA_AMRR
  68         bool "Use the AMRR rate control algorithm"
  69         help
  70           AMRR uses Binary Exponential Backoff (BEB) technique to adapt the
  71           length (threshold) of the sampling period used to change the values of
  72           bit-rate and transmission count parameters. It uses probe packets and
  73           depending on their transmission status adaptively changes the threshold
  74           value. The adaptation mechanism ensures fewer failed
  75           transmission/retransmission and higher throughput by not switching to a
  76           higher rate as specified by the backoff mechanism. In addition to this,
  77           the AMRR employs heuristics to capture the short-term variations of the
  78           channel by judiciously setting the rate and transmission count
  79           parameters.
  80
  81 config MADWIFI_RCA_SAMPLERATE
  82         bool "Use the SampleRate rate control algorithm"
  83         help
  84           SampleRate decides on the transmission bit-rate based on the past
  85           history of performance; it keeps a record of the number of successive
  86           failures, the number of successful transmits and the total transmission
  87           time along with the destination for that bit-rate. Stale samples are
  88           removed based on a EWMA windowing mechanism. If in the sampling
  89           process, no successful acknowledgment is received or the number of
  90           packets sent is multiple of 10 on a specific link, it transmits the
  91           packet with the highest rate which has not failed 4 successive times.
  92           Other than that it transmits packets at the rate which has the lowest
  93           average transmission time.
  94
  95 endchoice