| Summary: | 碩士 === 國立中正大學 === 電機工程研究所 === 89 === In this thesis, we evaluate TCP over a hybrid wireline-wireless network and seek its performance improvement. In particular, the wireless part of the hybrid network we consider
is a short thin network (STN). First, in the evaluation part of the thesis, we discuss the problems of TCP over wireless, with emphasis on the problem of TCP with multiple losses.
We next discuss the solutions to the problems of TCP over wireless. There are three main solutions in the performance improvement part of the thesis. In the first two solutions, we investigate the link layer mechanisms. In the third solution, we investigate the transport layer mechanism, and develop a new algorithm, BDP-Aware mechanism, to accommodate the wireless channel with time-varying channel state.
In all solutions, we analyze the long-term steady-state send rate, throughput, queue size, and link utilization through simulation. We also build a mathematical model to evaluate the throughput and compare it with the simulation. For the hybrid wireline-wireless network scenario, the TCP with BDP-Aware mechanism achieves good performance in both channel utilization and overall throughput.
|
|---|
