Performance improvement of 802.11 wireless access network with TCP ACK agent and auto-zoom backoff algorithm
Refereed conference paper presented and published in conference proceedings


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AbstractThis paper proposes two schemes to improve the TCP performance over 802.11 WLAN access protocol. In the standard 802.11 and TCP protocols, a TCP data segment is acknowledged twice, once at the MAC layer, and once at the TCP layer. By a simple cross-layer design, a TCP ACK agent is installed at the WLAN AP. When a MAC acknowledgment is received by the AP, the AP generates a TCP ACK on behalf of the WLAN stations. Together with the TCP ACK agent scheme, an autozoom backoff algorithm is proposed to further improve the access performance. In the auto-zoom backoff, the contention windows can be progressively reduced to a very low value in case of light or asymmetric traffic, and return to normal quickly when collision occurs. With the TCP ACK agent and auto-zoom backoff, we show that significant improvement in TCP throughput performance can be achieved in typical Internet application scenarios. © 2005 IEEE.
All Author(s) ListPang Q., Liew S.C., Leung V.C.M.
Name of Conference2005 IEEE 61st Vehicular Technology Conference -VTC 2005 - Spring Stockholm: Paving the Path for a Wireless Future
Start Date of Conference30/05/2005
End Date of Conference01/06/2005
Place of ConferenceStockholm
Country/Region of ConferenceSweden
Detailed descriptionorganized by IEEE,
Year2005
Month10
Day17
Volume Number61
Issue Number3
Pages2046 - 2050
ISSN1550-2252
LanguagesEnglish-United Kingdom
KeywordsCross-Layer Protocols, Data access, IEEE 802.11, MAC, TCP over WLAN, WiFi, WLAN

Last updated on 2021-27-11 at 23:47