Wireless Access Point Proxy Forwarding to Reduce Backhaul Traffic
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Solution Overview
Problem
Conventional wireless communication systems face inefficiencies due to increased hop counts and communication delays, leading to wasted bandwidth and frequent access point changes, which result in communication disruptions and increased traffic when transmission destinations change.
Innovation Solution
A wireless communication system where a wireless access point determines if it is closer to the packet's destination than the access point the packet originated from, allowing it to act as a proxy and transmit the packet directly to the backbone, thereby reducing the need for hop relays and access point changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If packets are relayed through multiple wireless access points to reach the backbone network, then stations can connect to the network even when not directly connected to a wired access point, but the hop count increases and communication delay increases
Solution Approach 1:
A wireless access point that is closer to the destination acts as an intermediary to forward packets directly to the backbone network, bypassing the conventional path through the original access point. This mediator reduces the number of hops and communication delay while maintaining network connectivity for stations that cannot directly connect to wired access points.
2Loss of time
If the access point to which a station belongs is changed to reduce hop count, then communication delay decreases, but communication disruptions occur and authentication is required
Solution Approach 1:
The invention extracts the packet forwarding function from the station's registered access point and assigns it to a different wireless access point that is closer to the destination. The station maintains its registration with the original access point, while the new access point independently forwards packets, eliminating the need for access point changes and associated authentication disruptions.
3Adaptability or versatility
If packets are forwarded through wireless access points not directly connected to the backbone, then stations can access the network, but bandwidth is wasted due to unnecessary relaying
Solution Approach 1:
The system dynamically changes the forwarding parameters by selecting wireless access points based on their proximity to the destination and their connection status to the backbone network. Packets are routed through optimal paths that minimize bandwidth consumption, with wireless access points that have direct backbone connections prioritized for forwarding traffic to avoid unnecessary relaying hops.
Data Source
AI summary
The traffic of wireless communication between wireless access points can be lowered without requiring a change in the access point to which an associated station belongs, to thereby efficiently use a band for the wireless communication. For this purpose, (1) a station sends a packet, and a wireless access point and a wired access point receives the packet; (2) the wired access point stores an identifier indicating proxy transmission in an ACK packet and then transmits the ACK packet, and (3) the wireless access point confirms the proxy processing identifier of the ACK packet from wired access point and stops delivery of packets to the backhaul. The wired access point delivers the packet to a destination of the packet.