Design and Implementation of a TCP Performance Enhancement Gateway for Satellite Networks

The performance of TCP suffers from degradation in satellite network due to long latency, high bit error rate. A design of TCP performance enhancing proxy (PEP) over satellite network is proposed. The network architecture is given based on the PEP, and the key technique is introduced. At last the PEP is validated with OPNET in this paper. The result shows that this PEP can improve the transmission efficiency significantly over satellite network, and the fairness is also good when the bandwidth is shared among multi-connections.