The use of WiFi networks is ceaselessly expanding beyond local wireless networks.
According to the 2013 WBA industry report, the progress towards “near-ubiquitous” WiFi is exemplified by the steady growth of carrier-operated public WiFi hotspots, from 5.2m in 2012 to 10.5m by 2018. The report goes on to list the most promising new expansion models that are encouraged by demand for service ubiquity and subsequent investment.
Such new venues include stadium WiFi, but also coffee shops, business workspaces, and public spaces such as supermarkets and hospitals.
Crowded WiFi settings require architectures capable of managing an unprecedented volume of connections. Such architectures are designed to support new services and applications that are required at crowded WiFi venues, such as broadcast support.
Broadcasting services enable users in crowded WiFi settings such as stadiums to access popular videos (e.g., replays) simultaneously. A growing number of wireless service providers see our technology as an indispensable ingredient for crowded WiFi scenarios. Our algorithm represents a technological leap in broadcasting and multicasting services, both in performance and management.
Researchers have used our algorithm to implement three technical feats that potentially revolutionize broadcasting without hardware upgrades:
- Simplified retransmissions: Retransmissions of erroneous packets are minimized and their management is greatly simplified.
- Optimal cooperation: Devices share missing packets in a way that minimizes communication with access points and among themselves.
- Multipath communications: Devices can seamlessly combine WiFi with existing 4G access so as to minimize costs.
Mobile WiFi mesh experiments have shown that our technology brings 4x throughput gains and 3.6x reductions in file download times, all while consuming 2 to 3 orders of magnitude (i.e., 100x to 1000x) less energy than WiFi uses for transmission for computation purposes.
More information can be found on our Multicast Topology Section.
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