1 research outputs found
Survey and Performance Evaluation of the Upcoming Next Generation WLAN Standard - IEEE 802.11ax
With the ever-increasing demand for wireless traffic and quality of serives
(QoS), wireless local area networks (WLANs) have developed into one of the most
dominant wireless networks that fully influence human life. As the most widely
used WLANs standard, Institute of Electrical and Electronics Engineers (IEEE)
802.11 will release the upcoming next generation WLANs standard amendment: IEEE
802.11ax. This article comprehensively surveys and analyzes the application
scenarios, technical requirements, standardization process, key technologies,
and performance evaluations of IEEE 802.11ax. Starting from the technical
objectives and requirements of IEEE 802.11ax, this article pays special
attention to high-dense deployment scenarios. After that, the key technologies
of IEEE 802.11ax, including the physical layer (PHY) enhancements, multi-user
(MU) medium access control (MU-MAC), spatial reuse (SR), and power efficiency
are discussed in detail, covering both standardization technologies as well as
the latest academic studies. Furthermore, performance requirements of IEEE
802.11ax are evaluated via a newly proposed systems and link-level integrated
simulation platform (SLISP). Simulations results confirm that IEEE 802.11ax
significantly improves the user experience in high-density deployment, while
successfully achieves the average per user throughput requirement in project
authorization request (PAR) by four times compared to the legacy IEEE 802.11.
Finally, potential advancement beyond IEEE 802.11ax are discussed to complete
this holistic study on the latest IEEE 802.11ax. To the best of our knowledge,
this article is the first study to directly investigate and analyze the latest
stable version of IEEE 802.11ax, and the first work to thoroughly and deeply
evaluate the compliance of the performance requirements of IEEE 802.11ax.Comment: 155 pages, 53 figure