Aegis: Physical Space Security for Wireless Networks With Smart Antennas
| Autor: | Raghupathy Sivakumar, Cheng-Lin Tsao, Sriram Lakshmanan |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Beamforming
Computer Networks and Communications Network security business.industry Computer science Wireless network Smart antenna Data security Context (language use) Cryptography Data_CODINGANDINFORMATIONTHEORY Computer Science Applications Wireless lan Wireless Electrical and Electronic Engineering business Software Computer network |
| Zdroj: | IEEE/ACM Transactions on Networking. 18:1105-1118 |
| ISSN: | 1558-2566 1063-6692 |
| DOI: | 10.1109/tnet.2009.2037621 |
| Popis: | In this paper, we focus on securing communication over wireless data networks from malicious eavesdroppers by using smart antennas. While conventional cryptography-based approaches focus on hiding the meaning of the information being communicated from the eavesdropper, we consider a complimentary class of strategies that limit knowledge of the existence of the information from the eavesdropper. We profile the performance achievable with simple beamforming strategies using a newly defined metric called exposure region. We then present three strategies within the context of an approach called Aegis, which uses virtual arrays of physical arrays to significantly improve the exposure region performance of a wireless LAN environment. Using simulations, analysis, and field trials, we validate and evaluate the proposed strategies. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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