| Publisher | Chinese University of Hong Kong | ||
|---|---|---|---|
| Format | 94.7KB PDF | Date added | 15 Apr 2005 |
| Topics | Wireless LAN, Wi-Fi (802.11), TCP - IP | ||
| Downloads | 86 | ||
This 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 auto-zoom backoff algorithm is proposed to further improve the access performance.
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