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PROJECT TITLE :

MU-MIMO MAC Protocols for Wireless Local Area Networks: A Survey

ABSTRACT:

As wireless devices boom and bandwidth-hungry applications (e.g., video and cloud uploading) get popular, these days's wireless local area networks (WLANs) become not solely crowded but additionally stressed at throughput. Multiuser multiple-input-multiple-output (MU-MIMO), a complicated form of MIMO, has gained attention because of its huge potential in improving the performance of WLANs. This paper surveys random access-based mostly medium access control (MAC) protocols for MU-MIMO-enabled WLANs. It 1st provides background info regarding the evolution and the basic MAC schemes of IEEE 802.eleven Standards and Amendments, and then identifies the key needs of designing MU-MIMO MAC protocols for WLANs. After this, the most representative MU-MIMO MAC proposals in the literature are overviewed by benchmarking their MAC procedures and examining the key elements, such as the channel state information acquisition, decoding/precoding, and scheduling schemes. Classifications and discussions on necessary findings of the surveyed MAC protocols are provided, primarily based on that, the analysis challenges for coming up with effective MU-MIMO MAC protocols, furthermore as the envisaged MAC's role in the long run heterogeneous networks, are highlighted.


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