楊偉豪 信息工程學系教授


項目簡介|PROJECT SUMMARY

BATS is a disruptive technology that solves the wireless communication problem by recoding the data packets at the relay nodes. As a result, high-throughput and low-latency transmission can be achieved over tens or even hundreds of wireless links.

發展階段|STAGE OF DEVELOPMENT

Launched

產品特點|DISTINGUISHED FEATURES

  • BATS is a disruptive technology developed from the fundamental research of Prof. Yeung’s team on Network Coding, a research field co-founded by himself in the late 1990s. BATS solves the longstanding wireless multi-hop communication problem by recoding the data packets at the relay nodes. As a result, high-throughput and low-latency transmission can be achieved over tens or even hundreds of wireless links.
  • When applied to different communication systems, BATS drastically increases the ceiling capacity of the system, pushing bandwidth, connectivity, and security performances to new heights. This allows the Internet to reach secluded areas, expanding information access and the economic market to many more areas.
  • Hong Kong is the first city to adopt the BATS technology. It has been deployed in the Government’s pilot smart lamppost system in East Kowloon for transmitting data collected at the smart lampposts. This application of BATS won a Gold Medal with Congratulations of the Jury at the 47th International Exhibition of Inventions of Geneva in 2019. Most recently, it has been deployed in a pilot network at Lantau Country Park for providing WiFi services at locations that are not well covered by the cellular network.

如何解決市場痛點|RESPONSE TO MARKET PAIN POINTS

In wireless multi-hop communication, a longstanding problem is packet loss accumulation along the transmission path. The more hops the transmission goes through, the larger the end-to-end packet loss. This can cause, for example, pixelation of a video that it is transmitted over a few wireless hops. As such, a connection in an existing communication system rarely contains more than 2 wireless links. With BATS, the network coding technology developed by our team, high-throughput and low-latency transmission can be achieved over tens or even hundreds of wireless links.

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