The Transmission Control Protocol (TCP) represents the most deployed transport protocol used in the Internet so far. This popularity motivates its presence in wireless networks, including ad hoc networks. These networks are very promising since they make i
Number of Retransmissions Retransmissions vs. Paket Size (10 flows) 1000NewReno Sack NewReno DA 900Sack DA 800 700 600 0 200 400 600 800 1000 1200 1400 1600
Paket Size (bytes)
(a)5-hop
Number of Retransmissions Retransmissions vs. Paket Size (10 flows) 1000NewReno Sack NewReno DA 900Sack DA 800 700 600 0 200 400 600 800 1000 1200 1400 1600
Paket Size (bytes)
(b)6-hop
Fig.6.Aggregatenumberofretransmissionsfor10 ows
Presumably,thisisaresultofthehighcongestioncausedbythecompeting ows,whichbecomesworseasthepacketsizeincreases.IntermsofcomparisonbetweenNewrenoandSACK,theresultscon rmagainthattheirperformancearevariableinmostcases.Therearecasesinwhichtheformeroutperformsthelatterandviceversa,butnooneisde nitelybettertheother.