Performance analysis of TCP over wireless link with dedicated buffers and link level error control

To evaluate the behavior of TCP on a path with a wireless link, we build a wireline-wireless network model, and assume the wireless link is the bottleneck which causes packets to be buffered at the wireline-wireless interface buffer. A reliable link layer protocol is assumed on the wireless link which hides the fluctuations of the wireless medium from TCP. We first build the link layer model and the wireless channel Markov chain model, and use the matrix geometric method to evaluate the packet loss probability. We then analyze the long-term steady-state send rate and throughput of a TCP connection.