منابع مشابه
PHY and MAC Layer Security in 802.11 Networks
IEEE 802.11-based wireless networks are being deployed in large numbers in home, business, and public environments but also in critical environments like hospitals or production plants where reliance on their availability is crucial. For example, Cisco reports that a 802.11n network is being deployed in a German university clinic to monitor vital parameters of patients as they are moved between...
متن کاملPhysical Layer Security for Multiuser MIMO Communications
Wireless multi-user MIMO communications are used more and more often to exchange sensitive data. Because of the broadcast nature of the physical medium, unauthorized receivers located within the transmission range can observe the signals sent by the transmitter to a legitimate receiver and eavesdrop them. Therefore, security has become an extremely important issue to deal with. Multiuser MIMO c...
متن کاملPhysical Layer Security in Massive MIMO
We consider a single-cell downlink massive MIMO communication in the presence of an adversary capable of jamming and eavesdropping simultaneously. We show that massive MIMO communication is naturally resilient to no training-phase jamming attack in which the adversary jams only the data communication and eavesdrops both the data communication and the training. Specifically, we show that the sec...
متن کاملMultilevel modulated chaos MIMO transmission scheme with physical layer security
Ensuring security at the physical layer in wireless communications is important and effective because it can omit upper-layer secure protocols in ad hoc or multi-hop relay transmissions, or it can enhance security together with upper-layer protocols. To realize this system, we have proposed a chaos-based multiple-input multiple-output (MIMO) transmission scheme that enables both physical-layer ...
متن کاملMAC-PHY Cross-Layer for High Channel Capacity of Multiple-Hop MIMO Relay System
For the high end-to-end channel capacity, the amplify-and-forward scheme multiple-hop MIMO relays system is considered. The distance between each transceiver is optimized to prevent some relays from being the bottleneck and guarantee the high end-to-end channel capacity. However, in some cases, the location of relays can’t be set at the desired location, the transmit power of each relay should ...
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ژورنال
عنوان ژورنال: Internet Technology Letters
سال: 2019
ISSN: 2476-1508
DOI: 10.1002/itl2.121