A Joint Beamforming based SDMA Protocol for IEEE 802.11n Downlink
Cheng Guo, Liqiang Zhao, Hui Zhao, Whai‐En Chen · 2015
To support space division multiple access (SDMA) in the IEEE 802.11n downlink, a joint beamforming based MAC protocol, J-MAC is presented in this paper. An access point (AP) follows J-MAC, which employs multiple array antennas, and user equipments (UEs) follow the IEEE 802.11x standard which employ