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- W3081321207 abstract "In this paper, we study the impact of environmental factors that affect Mu-MIMO user selection compared to conventional models. MU-MIMO is a technique in802.11 ac that improves spectral efficiency by allowing concurrent communication between one AP and multiple clients. In practice, the expected gain is not always achieved and is sometimes even negative. 802.11ac joint MU-MIMO user grouping and scheduling is important for many applications over Wi-Fi applications. Although Mu-MIMO is introduced in 802.11ac to improve spectral efficiency by allowing concurrent communication , it may introduce high delays and low throughput if AP selects the wrong users to group in an MU-MIMO transmission, as users with correlated channels cause high packet losses due to interference. Therefore, using a commodity 802.11ac AP, we experimentally show that the factors such as user mobility or user device with low SNR can reduce Mu-MIMO throughput below that of single-user transmissions." @default.
- W3081321207 created "2020-09-01" @default.
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- W3081321207 date "2020-08-19" @default.
- W3081321207 modified "2023-09-27" @default.
- W3081321207 title "Data-Driven MAC Protocol in Commodity 802.11ac" @default.
- W3081321207 hasPublicationYear "2020" @default.
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