1- Fu . t.IE In , f- Flow control of TCP Fairness { over - PDF document

: finish Up TCP Oct 13 Topics : f- Timeout ( RTO ) Estimation variation ↳ RTT , ↳ smoothing EWMA . packets to Bytes f- TCP : . I AIM D f- Rough throughput = oasis , 1- Fu . t.IE In , f- Flow control of TCP Fairness { over wireless . T cp - estimation ( via plot pain ) bandwidth Bottleneck - .

Estimation ③ RTO * . me current Perionfhuers Max { last k RTT } RTO → = will affect max mean { last k RTT } -7 weighted org safety RTO = y - historical of factor RTTS t t Estimated RTT Deviation of RTT ( E ) ( E ) t Eft ) RTO ft ) Elt ) = in + fi - agree , ← Rmtetasured = a pile Elt ) - y at time t O - 8 0.2

a Pitt - 2) - Y Pitt - l ) t ( I - x ) Rft - = pitt ) = a ( a tilt - 2) + f - D) t Ci - G Rft ) - a) Rft - i ) t ( I - a) Rtt ) an K' ft - iz ) t all - x ) Rft = ¥8 ) ? 0.64 R^lt)=aRH-D-KDR# , - JH=a8 µ ytGa)frH-i2 Elt ) t 48ft ) RTOHI = Estddev ( RTT ) . RT Td Est

→ Bytes ⑨ TCP Packets . - in # of bytes Expressed Cw → . Segment - - . . ÷ ;÷÷÷ ↳ ↳ ↳ . but AIM D → Additive Increase ③ Multiplicative Decrease . ↳ ¥¥ipaE? " In . = 0759pm Saw tooth behavior of CW

" Yttrium # i-TH me *i÷E 1- ⑦ ttowcontrol ? qq.io ~ No . of bytes still available } ACK { " at Rx ew , B } min { Tx transmits

-mms/loo , ooo krill ⑦ Topfairness ET El .su#cNN Alice 818%81 ¥ capacity How is Bob divided between qais quinonoid Fox . ? Alice & Bob capacity - 100 - #.W " • www i÷÷ Alice Bob or ¥ = Go Cw CW - O - at capacity # -20 cw - 10 40 CW # ¥ is . . . . w = Capacity - constant CWB -

• Bob > an , ↳ own TcPHw¥YeaYbfomor ①