Abstract:

Although the transport bridge proposed by international standardization organization development environment (ISODE) is a workable solution which interconnects the open system interconnection (OSI) hosts with the transmission control protocol/Internet protocol (TCP/IP) hosts, it requires that the transport application protocol interface (API) in the TCP hosts should be rewritten. A new transport gateway approach with better portability is proposed which implements the protocol translation function between TCP and transport protocol 4 (TP4). Furthermore, a novel adaptive congestion control algorithm is designed in the gateway which smoothes the rate difference between TCP and TP4 automatically through adjusting the flow control window dynamically. The test in the aeronautical telecommunication network (ATN) validates that the gateway achieves good performance with quality of service (QoS) guaranteed.

Key words: aeronautical telecommunication network, transport gateway, transport protocol 4, adaptive congestion control algorithm