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Table 2 Layered approaches

From: A survey of performance enhancement of transmission control protocol (TCP) in wireless ad hoc networks

Proposed solution Layer Involved Sender Intermediate Receiver Route Failure Shared Medium Transmission Losses Unfairness Congestion Normal SACK DACK Routing Protocol Parameters ACK After Proposed in Simulation environment
Fixed RTO T Y - - Y - - - Y Y Y Y DSR, AODV, ADV RTO - 2001 Mobile
ADTCP T Y - Y Y - Y - Y Y - - DSR Inter-packet delay & short-term throughput - 2002 Mobile
TCP-DOOR T Y - Y Y - - - Y   Y - DSR Out of order packet - 2002 Mobile
Backup path routing N Y - - Y   - - - Y - - SMR - - 2003 Mobile
COPAS N Y Y Y   Y - - - Y - - DSR Weighted. Ave Backoff - 2003 Static
LRED Link Layer Y Y Y - Y - Y - Y - - Manual Routing Number of Try for medium access - 2003 Static & Mobile
TCP-Dynamic Delay ACK T - - Y - Y - - - - - Y AODV - One ACK/1-4 packets 2003 Static
OPET MAC Y Y Y - Y - - Y Y - - Manual Routing - - 2004 Static
QE & FF MAC - - - - Y - - - Y - - AODV, DSR - - 2004 Static & mobile
TCP-ADA T - - Y - Y - - - - - Y DSR - One ACK/Cwnd 2004 Static
TCP-DAA T Y - Y - Y - - - - - Y - - 2-4 Packets 2005 Static
FeW T Y - - - Y - - Y Y - - DSR - - 2005 Static
NRED Link Layer Y Y Y - - - Y   Y - - AODV Queue length - 2005 Static & mobile
TCP-AP T Y Y Y   Y     Y    AODV - AODV 2005 Static
TCP-DCA T - - Y - Y - - - - - Y AODV, DSR and GPRS - Delay window based on hop 2008 Static
APS-FeW T Y - - - - - - Y Y - - DSR cwnd, packet size - 2009 Static & mobile
  1. Note: The'-'mark is used if the approach does not involve a particular aspect, otherwise 'Y' is used except in case of routing where the '-' mark means the approach does not clearly specify the underlying routing protocol used.