File Download
There are no files associated with this item.
SFX Link
- Find it @ UNIST can give you direct access to the published full text of this article. (UNISTARs only)
- Gong, Taesik
- Ubiquitous AI Lab
Views & Downloads
Detailed Information
Cited time in 
Cited time in 
Cited time in
Metadata Downloads
Poster: Dissecting 802.11ac performance - Why you should turn off MU-MIMO
- Author(s)
- Choi, Hyunwoo, Gong, Taesik, Kim, Jaehun, Shin, Jaemin, Lee, Sung-Ju
- Issued Date
- 2019-06-17
- Citation
- ACM International Conference on Mobile Systems, Applications, and Services, pp.510 - 511
- Abstract
- While the recent Wi-Fi standard 802.11ac achieves Gb/s theoretical capacity with Multi-User MIMO (MU-MIMO) technology, several studies reported that throughput of 802.11ac in practice is far from Gb/s link speed. We investigate the downlink throughput of Wi-Fi systems with commercially available 802.11ac products in multiple indoor environments to reveal the throughput of MU-MIMO system that user experiences in practice. From our experiments, Single-User MIMO (SU-MIMO) outperformed MU-MIMO at every experimental environments. We further provide analysis on our experimental results considering channel sounding overhead, user grouping, environmental impact, and transmission mode selection.
- Publisher
- Association for Computing Machinery, Inc
Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.