Throughput enhancement by acknowledgment suppression

摘要

Systems and methods for improving data transmission rates in communication networks are disclosed. In an 802.11 wireless communication network, where a source node of the wireless network transmits TCP data to a destination node of the wireless network, the destination node does not transmit TCP acknowledgments (ACKs) for the TCP data if 802.11 ACKs indicate that the destination node received the TCP data. If a source outside the wireless network transmits TCP data to the destination node within the wireless network through an intermediate device, such as an access point, the destination node suppresses transmitting TCP ACKs. The intermediate device transmits TCP ACKs as proxy for the destination node to the source. The intermediate device also suppresses TCP ACKs where a source node within the wireless network sends the TCP data to a destination node outside of the wireless network.

主权项

1. A method for increasing data throughput, the method comprising:
performing a handshake between an intermediate device and a destination device, wherein the handshake enables acknowledgement suppression between the intermediate device and the destination device; receiving data at the intermediate device, the received data originating from a source device and directed to the destination device; transmitting the received data using a higher layer protocol, from the intermediate device to the destination device; receiving a first acknowledgment of a lower layer protocol, sent from the destination device to the intermediate device, wherein the destination device suppresses any acknowledgement using the higher level protocol from being sent to the intermediate device; determining that the destination device received the data without error based on the first acknowledgement; synthesizing a second acknowledgement based on the first acknowledgement, the second acknowledgment spoofed as being from the destination device; and transmitting the second acknowledgment using the higher layer protocol, from the intermediate device to the source device.