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MU-MIMO WLANs in Diverse Bands and Environments
Multi-user MIMO (MU-MIMO) is a precoding technique that allows for an Access Point (AP) to transmit data to multiple receivers in parallel resulting in an overall capacity increase. However, achieving these gains requires significant overhead in first choosing the subset of users to serve and measuring the Channel State Information (CSI) between that ...
Augmenting Wireless Security Using Zero-Forcing Beamforming
We present the design and experimental evaluation of Simultaneous TRansmissions with Orthogonally Blinded Eavesdroppers (STROBE). STROBE is a cross-layer approach that exploits the multi-stream capabilities of existing technologies such as 802.11n and the upcoming 802.11ac standard where multi-antenna APs construct simultaneous data streams using ...