Computer Science – Information Theory
Scientific paper
2010-08-23
35th International Conference on Acoustics, Speech, and Signal Processing 2010
Computer Science
Information Theory
4 pages, 3 figures, 2010
Scientific paper
Accurate channel state information (CSI) at the transmitter is critical for maximizing spectral efficiency on the downlink of multi-antenna networks. In this work we analyze a novel form of physical layer attacks on such closed-loop wireless networks. Specifically, this paper considers the impact of deliberately inaccurate feedback by malicious users in a multiuser multicast system. Numerical results demonstrate the significant degradation in performance of closed-loop transmission schemes due to intentional feedback of false CSI by adversarial users.
Mukherjee Amitav
Swindlehurst Lee A.
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