Bandwidth and Topology Control for Multi-Hop Multi-Radio Wireless Networks

University College Cork Background
Wireless Local Area Networks (WLANs) based on 802.11/WiFi are widely deployed in residences and enterprises. To increase capacity in WLANs, extenders are often equipped with multiple wireless interfaces which can operate on different frequency bands. A Multi‑Hop Wireless Network (MWN) consists of a gateway connected to extenders. There are two approaches to elevate the performance of such MWNs and our technology works to collect measurements and statistics from the MWN system to identify traffic and performance in the network.
Technology Overview
The technology employs an optimized developed approach to accurately estimate the amount of required airtime and resources needed to serve Quality of Service (QoS) traffic and bandwidth fairness. It is able to limit the maximum overall bandwidth of non‑QoS traffic, and accommodate new QoS traffic which joins the network through periodically pulling measurements and statistics. The technology assesses the network bandwidth capacity and estimates the gain of reassigning channels, to bring significant improvement to the network performance.

Prioritization of QoS traffic over non‑QoS.
Performs instant actions to improve conditions for QoS traffic.
Performs topology control to improve client/network capacities.
Acknowledges carrier sense interference constraints and channel/band diversities.
Suitable for single‑hop and multi‑hop.

Integration of this technology can provide for a faster download experience, and better user experience when streaming video and voice traffic.
CONNECT is the world leading Science Foundation Ireland Research Centre for Future Networks and Communications. CONNECT is funded under the Science Foundation Ireland Research Centres programme, which has established a network of SFI Research Centres focusing on key research areas in Ireland. The centre is co-funded under the European Regional Development Fund.
CONNECT brings together world-class expertise from ten Irish academic institutes to create a one-stop-shop for telecommunications research, development and innovation. We engage with over 40 companies including large multinationals, SMEs and start-ups.
This technology is available for licensing and research collaboration.

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