TCP performance analysis and optimization over DMT based ADSL system

This paper studies the transmission control protocol (TCP) performance over a discrete multi-tone (DMT) based asymmetric digital subscriber loop (ADSL) network. The impact of DMT subchannel bit loading on the TCP throughput performance is studied. The simulation results show that there is a threshold for the signal-to-noise ratio (SNR) gap or bit error rate (BER) above which TCP throughput drops quickly. This threshold takes its value in a wide range depending on the TCP round-trip time as well as channel noises. This suggests that it would be insuf

• Type: Journal
• Year: 2002
• Where: COMCOM
• Authors: Xiaoning He, Hao Che
• Keywords: Bit Error Rate, COMCOM 2002, TCP Round-trip Time, Transmission Control Protocol