On the Vulnerabilities of CSI in MIMO Wireless Communication Systems
Multiple-Input Multiple-Output (MIMO) technologies are a popular choice for emerging wireless systems due to their promised gains in throughput and reliability. In order to realize any gains over traditional non-MIMO communication systems, these systems must possess accurate knowledge of the wireless channel. In this paper, the authors investigate strategies for disrupting MIMO communications by developing attacks that target the often over-looked, but essential, channel estimation procedure. Their study focuses on the two most popular and well-known MIMO techniques: the capacity achieving SVD-based MIMO scheme, and the Alamouti Space-Time Block Code (STBC), which spans many protocols including 802.11n, WiMAX, and 3GPP.