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Security in Uplink MU-MIMO Networks: Poster Abstract

Published: 18 April 2017 Publication History

Abstract

Multiple-In-Multiple-Out (MIMO) offers great potential for increasing network capacity by exploiting spatial diversity with multiple antennas. Multiuser MIMO (MU-MIMO) further enables Access Points (APs) with multiple antennas to transmit multiple data streams concurrently to several clients. However, the uplink data transmission (from client to AP) of MU-MIMO is more vulnerable because its wide distribution and diversification. We explore the vulnerability in clients' feedback of estimated CSI to the AP. We then propose two attacks potentially taken by malicious clients and malicious AP respectively: (1) the forging client attack that malicious client report the forged CSI to the AP and (2) forging AP attack that malicious AP transmits wrong training frame to clients. Both of these attacks can lead to incorrect resolving at AP and ruin the whole uplink communication. Correspondingly, we design countermeasures for these attacks, namely CVU and CFU. We evaluate their performance via simulators. Based on our experimental results, we suggest a new CSI feedback scheme to prevent CSI forging, which only requires slight modification at the client side and easy for deployment.

References

[1]
Tung-Wei Kuo, Kuang-Che Lee, Kate Ching-Ju Lin, and Ming-Jer Tsai. 2014. Leader-Contention-Based User Matching for 802.11 Multiuser MIMO Networks. IEEE Transactions on Wireless Communications 13, 8 (2014), 4389--4400.
[2]
Berk Sunar, William J Martin, and Douglas R Stinson. 2007. A provably secure true random number generator with built-in tolerance to active attacks. IEEE Trans. Comput. 56, 1 (2007), 109--119.
[3]
Kun Tan, He Liu, Ji Fang, Wei Wang, Jiansong Zhang, Mi Chen, and Geoffrey M Voelker. SAM: enabling practical spatial multiple access in wireless LAN. In Proceedings of ACM MobiCom 2009. 49--60.

Cited By

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  • (2019)Physical layer security schemes for MIMO systems: an overviewWireless Networks10.1007/s11276-019-02060-0Online publication date: 14-Jun-2019

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cover image ACM Conferences
IoTDI '17: Proceedings of the Second International Conference on Internet-of-Things Design and Implementation
April 2017
353 pages
ISBN:9781450349666
DOI:10.1145/3054977
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Association for Computing Machinery

New York, NY, United States

Publication History

Published: 18 April 2017

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Author Tags

  1. Beamforming
  2. MU-MIMO
  3. Security

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  • Short-paper
  • Research
  • Refereed limited

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Cited By

View all
  • (2019)Physical layer security schemes for MIMO systems: an overviewWireless Networks10.1007/s11276-019-02060-0Online publication date: 14-Jun-2019

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