Chai K. Toh: Difference between revisions

Latest revision as of 22:23, 18 September 2023

Biography

Dr. Chai Keong Toh, professor and chair in Communications Networks at the University of London in England, has been a trailblazer in the field of mobile ad hoc wireless networks. As former director of research in communications systems at TRW Tactical Systems Inc., (now Northrop Grumman Mission Systems Corporation) in Carson, California, and now as chair professor at the University of London, Dr. Toh has laid the critical foundation for a new type of next-generation mobile wireless communications, computing and networking.

He built the first practical wireless ad hoc network in 1998, using Lucent WaveLAN WiFi 802.11 2.4GHz radios, laptops running Linux OS, and his ad hoc routing protocol code. He demonstrated that realizing ad hoc networks is possible, and existing RPC/UDP/TCP/IP applications, such as FTP/TELNET/RLOGIN and HTTP web-based client-server multimedia applications can be supported transparently. He also worked to resolve power, media access, multicasting, TCP, and service discovery issues for wireless ad hoc networks.

In 1993, he invented associativity based routing, an on-demand routing approach that discovers route only when needed, selects stable mobile routes despite nodes' mobility and creates an ad hoc network that yields robust communications performance capable of relaying packets in a wireless hop-by-hop manner, without the need for any centralized control. It was a pioneering work that gained a U.S. patent and was subsequently licensed for defense use. Wireless ad hoc networks, also sometimes known as wireless mesh networks, is the precursor to Internet of Things, where devices could automatically connect to each other wirelessly. Wireless ad hoc networks have been widely used in smart phones (peer to peer chat without cellular), smart homes (Z-wave and ZigBee), smart street lights, disasters rescue operations during storms and earthquake, vehicular V2V communications for road safety, army tactical ad hoc mobile radios for soldiers in the battlefield, army explosive hopping mines, air force UAV (unmanned air vehicle) ad hoc networks, navy ship area ad hoc networks, etc.

A Fellow Member of IEEE, AAAS, IET, and a pioneering creator of mobile ad hoc networks, Dr. Toh has devoted over two decades (since 1993 while at Cambridge University, England) in this field. For his pioneering contributions, he received the IEEE Kiyo Tomiyasu Award in 2005, the IET Ambrose Fleming Medal in 2009, and was elected to The Royal Academy of Engineering, UK in 2019.

@@ Line 1: / Line 1: @@
-== Biography  ==
+{{Biography
+|Image=Prof toh 2016.jpg
+|Birthplace=Singapore
+|Associated organizations=Cambridge University; Manchester University; University of London, UK; National Tsing Hua University, TAIWAN; University of California Berkeley, USA
+|Fields of study=Computer Science, Telecommunications, Wireless Networks, Mobile Ad Hoc Networks, ITS, Telematics, IoT and Smart Cities
+|Awards=[[IEEE Kiyo Tomiyasu Award]], <br>IET Ambrose Fleming Medal<br>IET Editor-in-Chief Award<br>Royal Academy of Engineering, UK
+}}
+Dr. Chai Keong Toh, professor and chair in Communications Networks at the University of London in England, has been a trailblazer in the field of mobile ad hoc wireless networks. As former director of research in communications systems at TRW Tactical Systems Inc., (now Northrop Grumman Mission Systems Corporation) in Carson, California, and now as chair professor at the University of London, Dr. Toh has laid the critical foundation for a new type of next-generation mobile  wireless communications, computing and networking.
-Dr. Chai Keong Toh, professor and chair in Communications Networks at the University of London in England, has been a trailblazer in the field of ad hoc wireless networks. As former director of research in communications systems at Northrop Grumman Mission Systems Corporation in Carson, California, and now as chair professor at the University of London, Dr. Toh has laid the foundation for next-generation mobile communications, computing and networking. He invented associativity based routing, an approach that selects stable mobile routes that yield high performance, low-cost wireless networks that originate, terminate and relay traffic without centralized control. It was a pioneering work that gained a U.S. patent.
+He built the first practical wireless ad hoc network in 1998, using Lucent WaveLAN [[Wireless LAN 802.11 Wi-Fi|WiFi 802.11]] 2.4GHz radios, laptops running Linux OS, and his ad hoc routing protocol code. He demonstrated that realizing ad hoc networks is possible, and existing RPC/UDP/TCP/IP applications, such as FTP/TELNET/RLOGIN and HTTP web-based client-server multimedia applications can be supported transparently. He also worked to resolve power, media access, multicasting, TCP, and service discovery issues for wireless ad hoc networks.
-A Senior Member of IEEE and a pioneering promoter of ad hoc networking, Dr. Toh founded the Ad Hoc Wireless Networking and Computing Consortium and the IEEE Symposium on Ad Hoc Wireless Networks. He also served as chairman of the IEEE Computer Society's Technical Committee on Computer Communications and as a distinguished lecturer.
+In 1993, he invented associativity based routing, an on-demand routing approach that discovers route only when needed, selects stable mobile routes despite nodes' mobility and creates an ad hoc network that yields robust communications performance capable of relaying packets in a wireless hop-by-hop manner, without the need for any centralized control. It was a pioneering work that gained a U.S. patent and was subsequently licensed for defense use.  Wireless ad hoc networks, also sometimes known as wireless mesh networks, is the precursor to Internet of Things, where devices could automatically connect to each other wirelessly. Wireless ad hoc networks have been widely used in smart phones (peer to peer chat without cellular), smart homes (Z-wave and ZigBee), smart street lights, disasters rescue operations during storms and earthquake, vehicular V2V communications for road safety,  army tactical ad hoc mobile radios for soldiers in the battlefield, army explosive hopping mines, air force UAV (unmanned air vehicle) ad hoc networks, navy ship area ad hoc networks, etc.
+A [[IEEE Fellow Grade History|Fellow Member of IEEE]], AAAS, IET, and a pioneering creator of mobile ad hoc networks, Dr. Toh has devoted over two decades (since 1993 while at Cambridge University, England) in this field. For his pioneering contributions, he received the IEEE Kiyo Tomiyasu Award in 2005, the IET Ambrose Fleming Medal in 2009, and was elected to The Royal Academy of Engineering, UK in 2019.
+{{DEFAULTSORT:Toh}}
-[[Category:Visual_communication]]
 [[Category:Communication_networks]]
 [[Category:Routing]]
+[[Category:Radio_communication]]
+[[Category:Computer_networks]]
+[[Category:Pervasive_computing]]