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