1. Performance Comparison of SU- and MU-MIMO in 802.11ax: Delay and Throughput
- Author
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Yein Heo, Yeongjun Kim, Hyun Jong Yang, and Jonggyu Jang
- Subjects
Wireless ad hoc network ,Computer science ,business.industry ,ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS ,010401 analytical chemistry ,05 social sciences ,MIMO ,050801 communication & media studies ,Throughput ,Data_CODINGANDINFORMATIONTHEORY ,01 natural sciences ,Multi-user MIMO ,0104 chemical sciences ,0508 media and communications ,Performance comparison ,Telecommunications link ,Computer Science::Networking and Internet Architecture ,Wireless ,business ,Throughput (business) ,Computer Science::Information Theory ,Computer network - Abstract
The most recent Wi-Fi standard, IEEE 802.11ax, supports uplink multiuser (MU) multi-input multi-output (MIMO) with the expectation of increased throughput and reduced access delay, compared with the legacy Wi-Fi. Recent studies on cellular mobile networks, such as 3GPP LTE, have shown that MU-MIMO indeed greatly improves the delay and throughput performance, compared to single user (SU)-MIMO. However, there is no study explicitly comparing the 802.11ax and the legacy Wi-Fi in the uplink delay and throughput perspectives. This paper presents numerical comparison of uplink MU- and SU-MIMO on the delay and throughput performance.
- Published
- 2020
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