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Alohanet: World’S First Wireless Network

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Wiliki_Dec2020_Wiliki Sept06 11/24/20 6:54 AM Page 1 VOL. 56 NO. 10 SERVING 2000 ENGINEERS DECEMBER, 2020 ALOHAnet: World’s First Wireless Network Dr. Franklin Kuo and Dr. Norman Abramson attended the Milestone ceremony virtually. On October 13, 2020, Hawaii celebrated the An excerpt from Dr. Vinton Cerf, Google’s chief o Comprised of the ALOHA protocol and the installation of its fourth IEEE Milestone (for the internet evangelist and “Father of the Internet”: ALOHA System. ALOHAnet) with the world. “The University of Hawai’i is the gift that keeps o Acronym for "Additive Links On-line Hawaii Hawaii established a significant first with this on giving, and it has been giving for 50 years and Area network". celebration: The first IEEE Milestone to be more,” Cerf said. “We benefit from that. Imagine Prior to the ALOHA protocol, there was no virtually broadcast worldwide due to the COVID- the industries that have grown up around people existing packet-switching or packet-based 19 pandemic. who have learned skills from the University of protocols. This is the reason that Bob Metcalfe IEEE established the Electrical Engineering Hawaiʻi.” came to the University of Hawaii College of Milestones program in 1983 to honor significant Peer recognition of ALOHAnet and its co- Engineering to study under Dr. Norman achievements in the history of electrical and Principal Investigators, Dr. Norman Abramson Abramson. electronics engineering. and Dr. Franklin Kuo during the Virtual Prior to the ALOHA system, mainframe Due to the COVID-19 pandemic, the University Installation Ceremony included: computers (PCs were at least a decade away) of Hawaii at Manoa College of Engineering • Dr. Vinton Cerf “Father of the Ethernet” were connected to one another via dedicated, decided on two ceremonies to recognize • Dr. Robert Metcalfe “Father of Ethernet”. Bob leased telephone lines or dedicated satellite ALOHAnet: a Fall 2020 virtual installation Metcalfe actually studied under Dr. Abramson at circuits, not a broadcast technology that is ceremony and a June 2021 mini symposium the University of Hawaii College of Engineering inherent to radio. physical ceremony to commemorate the 50th for a month while a graduate student at Harvard Prior to the ALOHAnet, there were no anniversary of the initial ALOHAnet broadcast in University. He took the ALOHA protocol and computer networks. ARPAnet became June 1971. improved it to build Collision Sense Multiple operational in 1975; ARPAnet computer- Dr. Brennon Morioka, Dean of the University of Access/Collision Detect (CSMA/CD) for Ethernet computer connections or nodes, were Hawaii at Manoa College of Engineering served while at Xerox Palo Alto Research Center dedicated, leased telephone lines. as Master of Ceremonies and speakers for the (PARC). In fact, he originally named Ethernet, Prior to the ALOHAnet the concept of shared ALOHAnet Installation ceremony were: “Altos Aloha Network”. medium access did not exist. Radio is inherently • Dr. David Lassner; President of the University • Dr. Robert Kahn at the time was the Director a shared access medium. of Hawaii; at ARPA/IPTO stated, “The ALOHA system was Prior to the ALOHAnet, there were no wireless • State of Hawaii Governor David Ige; to packet radio like the original timesharing computer communications. The Department of • Dr. Norman Abramson, co-PI for ALOHAnet; computer was to Arpanet”. Defense allowed ALOHAnet to utilize an • Dr. Franklin Kuo, co -PI for ALOHAnet; ALOHAnet consisted of three parts and experimental UHF frequency. • Kathy Land, IEEE President-Elect. established a number of firsts in Other significant firsts for the ALOHAnet communications, networking, and radio. The With the exception of Gov. Ige, all of the included: three components of the ALOHAnet (aka ALOHA speakers are IEEE Fellows or Senior Members. • Established and operated a UHF terrestrial System) were: The video recording of the October 13, 2020 data network within the state of Hawaii by • ALOHA protocol ALOHAnet Installation Ceremony may be December 1971. accessed at: https://www.youtube.com/watch? O Random access-based packet protocol • December 1972. v=moqUIww_fqQ&feature=emb_rel_end. • ALOHA System o The University of Hawaii at Manoa IBM 360 The official University of Hawaii o Comprised of a mainframe computer, remote mainframe became the first ARPAnet node to be communications site has an article that has the terminals, terminal connection units, and radio connected via satellite. This allowed connectivity recognition attributed to the University of Hawaii equipment in the first star, or hub-and-spoke between ALOHAnet and ARPAnet. College of Engineering and its graduates: configuration and to use a shared access • 1973. https://www.hawaii.edu/news/2020/10/13/aloha medium. net-honored-as-engineering-milestone/. • ALOHAnet continued on Page 5 Wiliki_Dec2020_Wiliki Sept06 11/24/20 6:54 AM Page 2 Page 2 Hawaii Society of The American Professional Engineers Society of A state society of the National Society of Professional Engineers Mechanical Engineers Published monthly by: P.O. BOX 3774 HONOLULU, HAWAII 96812 HAWAII COUNCIL OF ENGINEERING SOCIETIES http://www.hawaiispe.org/ www.asme-hi.com SERVICE PRINTERS, INC. HSPE Officers for 2020-2021 ASME-HI 2020-2021 Officers 1829 Dillingham Boulevard • Honolulu, HI 96819 Acting Pres.: Sara Doi Chairperson Froilan Garma 321-2691 Telephone: (808) 841-7644 • Fax: (808) 847-1487 [email protected] [email protected] Pres. 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