Title :
ACK filtering on bandwidth asymmetry networks
Author :
Wu, Haitao ; Wu, Jing ; Cheng, Shiduan ; Ma, Jim
Author_Institution :
Nat. Key lab. of Switching Technol. & Telecommun. Networks, Beijing Univ. of Posts & Telecommun., China
Abstract :
We study the effects of bandwidth asymmetry on end-to-end TCP performance and suggest a mechanism to improve it. Bandwidth asymmetry has been considered a mismatch in the bandwidths in two directions of data transfer. It is common in wireless networks, ADSL networks, etc. In a bandwidth asymmetry network, throughput achieved is not only dependent on the traffic and link characteristics of the forward direction, but significantly determined by those of the backward direction. Some mechanisms, has been proposed to overcome this problem. In our study, we focus on the ACK filtering algorithm, which decrease the rate of ACK on a constrained reverse link, taking advantage of the fact that TCP ACKs are cumulative.
Keywords :
data communication; digital subscriber lines; radio networks; telecommunication links; telecommunication traffic; transport protocols; ACK filtering; ACK filtering algorithm; ADSL networks; TCP/IP Internet Protocol Suite; backward direction; bandwidth asymmetry networks; constrained reverse link; data transfer; end-to-end TCP performance; forward direction; link characteristics; open system interconnection; throughput; traffic characteristics; wireless networks; wireless technology; Bandwidth; Delay; Electronic mail; Filtering; Network topology; Research and development; TCPIP; Throughput; Wireless application protocol; Wireless networks;
Conference_Titel :
Communications, 1999. APCC/OECC '99. Fifth Asia-Pacific Conference on ... and Fourth Optoelectronics and Communications Conference
Conference_Location :
Beijing, China
Print_ISBN :
7-5635-0402-8
DOI :
10.1109/APCC.1999.824495
