= I v Network Layer - YEE Tcpoverwireless Last 1 mile . . . - PDF document

TCP complete Oct 15 : over wireless TCP - RED TCP - to end bottleneck bandwidth End - estimation ( plat pair ) = I v Network Layer -

YEE ③ Tcpoverwireless Last 1¥ mile . . . BER ( Bit error rate ) - . of hit error much big prob = in wireless than wired . in error every 1045¥ I Wireless bit - 10-5 - 12 wired n yo Packet Drop freaks d ' congestion wireless link ( Router g fined up ) failure I response + response CW cut back Just retx .

know The is Problem → TOP doesn't treason for packet drop . 7.EU#i - - Eit :i÷÷÷÷ - : N retransmission low prob . is very ret x failing all N Be → TCP asking Link Cross layer approaches . layer for hints .

. II t3 ④ Bank split T op Power outage .q ⑤ , . ap¥# ✓ A&t tntngighaicks finning } 's :p . Link layer A- 5 into is SNOOPING RED ( Random ⑦ TCP Early Dnpntopmaedkemt when beginningtofiuup.my#.Dop). is → increasing kiosk Cw . nice way is RED a , . ⇐ *m .gg#nEerkIo9ee : TCP Transmitter

that Q is filling up , cut back so CW ( via Fast Recovery ) on . I Does not violate layering , note : Packet Pair ③ - T s bandwidth Bottleneck . R , R2 R3 - Rl 40 30 20 100

W W = Packetsize T B/w Bottleneck ¥ done . danger