Seminaire: IEEE 802.11ax: Next Generation Wireless Local Area Networks

Title: IEEE 802.11ax: Next Generation Wireless Local Area Networks

 

Abstract:

In 1985 the US Federal Communications Commission (FCC) made several wireless spectrum bands available without a government license, known as “garbage band”, for Industrial, Medical, and Scientific (ISM) purposes, which unleashed a wave of innovations in the telecommunication industry that fundamentally changed humans experience and the interaction with wireless networks. Among those technologies the Wi-Fi networking based on IEEE 802.11 Wireless LAN (WLAN) standards has distinguished itself as the technology of choice for the masses to satisfy their networking requirements at an affordable cost. Wi-Fi devices now are being deployed in diverse environments. These environments are characterized by the existence of many access points (AP) and mobile nodes in geographically limited areas. Increased interference from neighboring devices and severe collisions from channel contention in dense environments give rise to network performance degradation. Hence, recently, a new effort to seek fundamental improvement of IEEE 802.11, known as IEEE 802.11ax (a.k.a. 802.11 HEW), was approved to deliver a new generation of WLANs. This talk will firstly introduce the history and the state-of-the-art operation of WLANs protocol. The expected features and challenges for designing future WLANs protocol will also be discussed. Next, in this talk we will summarize the IEEE 802.11ax standardization activities in progress and introduce the key features proposed in the 802.11ax amendment. Finally, in this talk we will also address coexistence issues between the different communication technologies operating in the same band since LTE- advanced (4G) and 5G are also planning to make use of the unlicensed bands.

 

Biography:

 

Der-Jiunn Deng received the Ph.D. degree in electrical engineering from the National Taiwan University in 2005. He joined the National Changhua University of Education as an Assistant Professor in the Department of Computer Science and Information Engineering in August 2005 and then became a Distinguished Professor in August 2016. In July 2018, he was seconded to Overseas Chinese University as the vice president for research and development for a period of one year. Dr. Deng has received a number of research awards, such as the Research Excellency Award of National Changhua University of Education, the Outstanding Faculty Research Award of National Changhua University of Education, the ICS 2014 Best Paper award, the NCS 2017 Best Paper Award, and the Chinacom 2017 Best Paper Award. Dr. Deng is the Co-Editor-in-Chief of EAI Endorsed Transactions on IoT and Journal of Computers. He serves as an associate editor in IEEE Network Magazine and International Journal of Communication Systems. He also served or is serving on several program chairs, symposium chairs, and technical program committees for IEEE and other international conferences. His research interests include multimedia communication, quality-of-service, and wireless local network.

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event_date: 
Mercredi, 5 Septembre, 2018 - 14:00 to 15:00


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