To improve the performances ofTCP (transfer control protocol) in mobile environments, an end-
to-end solutionwas proposed based on ROMIPv4 (route optimization in mobile internet protocal version 4),
which is named as TCP-BROMIPv4. In this solution, sender TCP may adjust its operation when it is
switching to a new node if it receives a binding update message and a handoffwarning message. Simulation
results show that TCP-BROMIPv4 shortens the traffic interrupted time and increases the number of packets
transfered, greatly raises the throughput ofTCP in mobile networks .