Menu

[Solved] Let 0 50 100 150 200 250 Specify Timestamps 6 Consecutive Packets Talk Spurt Period Voip A Q37204796

  1. Let 0, 50, 100, 150, 200, 250 specify the timestamps of 6consecutive packets during a talk-spurt period of a VoIPapplication. Also, let 26, 71, 133, 171, 239, 276 specify thecorresponding received times of the same six packets.
  1. Using the exponentially weighted moving average, find theestimated delay after every packet is received by the client(except the first one). Use the formula LaTeX: d_i = (1-alpha)d_{i-1} + alpha(r_i-t_i) di=(1−α)di−1+α(ri−ti) where LaTeX: i=1, 2, ldots, 5 i=1,2,…,5, α 0.2α=0.2,r71r1=71,ti -50t1=50,etc.
  2. Using the exponentially weighted moving average, find theestimated deviation of delays calculated in the previous part. Usethe formula  LaTeX: v_i=(1-beta)v_{i-1} + beta |r_i-t_i-d_i|vi=(1−β)vi−1+β|ri−ti−di|where β 0.1β=0.1,LaTeX: i=1,2,ldots, 5 i=1,2,…,5, vo = 0v0=0.
  3. Using the calculated values in previous parts and the followingformula, schedule the playout time of packets in the nexttalk-spurt period with timestamps 350,400, 450,500 350,400,450,500 and received times of 375,430, 481,543 375,430,481,543:

    playout time, -ti + di + Kviplayouttimei=ti+di+Kvi

    where 5K=5.Note that only the first packet (with timestamp 350) should bescheduled for playout using the given formula and the followingthree packets should be scheduled periodically (50 ms after theprevious packet’s playout time)

  4. Does any of the four packets specified in part c miss itsplayout schedule time; i.e. is there any packet whose playout timeis scheduled earlier than its arrival time? If so, what should bethe minimum value of LaTeX: KK so that we haveno packet playout loss.

We were unable to transcribe this imageWe were unable to transcribe this imageWe were unable to transcribe this imager71 ti -50 We were unable to transcribe this imageβ 0.1 We were unable to transcribe this imagevo = 0 350,400, 450,500 375,430, 481,543 playout time, -ti + di + Kvi 5 We were unable to transcribe this imageShow transcribed image text

r71
ti -50

β 0.1

vo = 0
350,400, 450,500
375,430, 481,543
playout time, -ti + di + Kvi
5

Expert Answer


Answer to Let 0, 50, 100, 150, 200, 250 specify the timestamps of 6 consecutive packets during a talk-spurt period of a VoIP appli… . . .

OR


Leave a Reply

Your email address will not be published. Required fields are marked *