WTCP: a reliable transport protocol for wireless wide-area networks
MobiCom '99 Proceedings of the 5th annual ACM/IEEE international conference on Mobile computing and networking
Modeling TCP Reno performance: a simple model and its empirical validation
IEEE/ACM Transactions on Networking (TON)
Quantifying TCP Performance Improvements in Noisy Environments Using Protocol Boosters
ISCC '00 Proceedings of the Fifth IEEE Symposium on Computers and Communications (ISCC 2000)
Performance of TCP over Lossy Upstream and Downstream Links with Link-Level Retransmissions
ICON '00 Proceedings of the 8th IEEE International Conference on Networks
WTCP: An Efficient Mechanism for Improving TCP Performance over Wireless Links
ISCC '98 Proceedings of the Third IEEE Symposium on Computers & Communications
Improving Performance of TCP over Wireless Networks
ICDCS '97 Proceedings of the 17th International Conference on Distributed Computing Systems (ICDCS '97)
I-TCP: indirect TCP for mobile hosts
ICDCS '95 Proceedings of the 15th International Conference on Distributed Computing Systems
A low-power accelerator for the SPHINX 3 speech recognition system
Proceedings of the 2003 international conference on Compilers, architecture and synthesis for embedded systems
| Hi-index | 0.00 |
TCP performs reasonably well over Internet where packet losses are mainly due to network congestion. However, TCP originally targeted on the wire networks is inapplicable for the wireless networks where packet losses are mainly caused by link errors. TCP treats a packet loss as an indication of network congestion and misleads the packet loss caused by the link error in the wireless networks. This confusion makes the over-reduction of window size in TCP, resulting in poor performance. Wireless TCP (WTCP) was proposed to promote the performance of TCP in the wireless networks [1]. WTCP splits a TCP connection between a fixed host and a mobile host into two segments with end-to-end semantics. It is installed into the base station to more correctly estimate the retransmission timeout and speed up the packet retransmission in the wireless link.In this paper, we analyzed the WTCP based on the analysis of TCP Reno [2]. WTCP treats a timeout or a duplicateACK as an indication of packet loss.We first analyzed the throughput under only considering the loss caused by a duplicate ACK, and then expanded to the case with timeouts. The simulation results show that WTCP outperforms TCP in the wireless environment where link error rate is high, while has the similar throughput in the wire environment with low link error rate.