A hybrid artificial-noise and secret-key scheme for securing OFDM transmissions in V2G networks

  title={A hybrid artificial-noise and secret-key scheme for securing OFDM transmissions in V2G networks},
  author={Ahmed El Shafie and Mohamed F. Marzban and Rakan C. Chabaan and Naofal Al-Dhahir},
  journal={2018 15th IEEE Annual Consumer Communications \& Networking Conference (CCNC)},
We propose a new scheme to enhance the physical-layer security of wireless single-input single-output orthogonal-frequency division-multiplexing (OFDM) transmissions from an electric vehicle, Alice, to the aggregator, Bob, in the presence of an eavesdropper, Eve. To prevent information leakage to Eve, Alice exploits the wireless channel randomness to extract secret key symbols that are used to encrypt some data symbols which are then multiplexed in the frequency domain with the remaining… 
Novel Secret-Key-Assisted Schemes for Secure MISOME-OFDM Systems
Numerical results validate the theoretical findings and quantify the impact of different system design parameters for a new secure transmission scheme for uplink multiple-input single-output (MISO) orthogonal-frequency multiplexing (OFDM) systems in the presence of multiple eavesdroppers.
Security-Enhanced SC-FDMA Transmissions Using Temporal Artificial-Noise and Secret Key Aided Schemes
It is proved that the number of useful AN streams that can degrade Eve’s signal-to-noise ratio is dependent on the channel memories of Alices–Bob and Alice–Eve links, and a hybrid security scheme is proposed that integrates temporal AN with channel-based secret key extraction.
Securing SC-FDE Uplink Transmissions Using Temporal Artificial Noise under Three Detection Strategies
This paper investigates the physical-layer security of single-input single-output uplink single-carrier frequencydomain equalization (SC- FDE) and derives a closed-form expression for the average secrecy rate at high input SNR under the worse-case scenario when Eve performs ML detection.
The Secrecy Capacity Optimization Artificial Noise: A New Type of Artificial Noise for Secure Communication in MIMO System
A secrecy capacity optimization artificial noise for the whole communication system to further improve the system’s secrecy capacity is proposed and results in practical environments show that the proposed method has a good performance on improving the secrecy capacity.


Securing OFDM-based wireless links using temporal artificial-noise injection
It is demonstrated that the AN-aided scheme is effective and achieves almost the same average secrecy rate as the full-CSI case without the need for Eve's instantaneous CSI at Alice.
MIMO Wireless Secure Communication Using Data-Carrying Artificial Noise
This paper derives expressions for the minimum-guaranteeable secrecy rate as a function of number of symbols encrypted as well as bounds for rates assuming the overhead time required for key generation produces a Gaussian channel-estimation error.
Hybrid Spatio-Temporal Artificial Noise Design for Secure MIMOME-OFDM Systems
Artificial noise (AN) injection along the temporal and spatial dimensions of a legitimate system to secure its transmissions from potential eavesdropping is investigated and an upper bound on the secrecy rate loss due to the presence of the eavesdropper is derived.
Artificial-Noise-Aided Secure MIMO Full-Duplex Relay Channels With Fixed-Power Transmissions
The numerical results demonstrate that the proposed AN-aided secure scheme achieves a significant average secrecy rate improvement compared with the case of no cooperative jammer.
Enhancing the PHY-Layer Security of MIMO Buffer-Aided Relay Networks
This work investigates the physical-layer security of a buffer-aided multiple-input multiple-output relay channel and proposes a precoded artificial-noise injection scheme to enhance the security of the legitimate transmissions.
Efficient Key Generation by Exploiting Randomness From Channel Responses of Individual OFDM Subcarriers
A new approach to extract keys efficiently from the channel responses of individual orthogonal frequency-division multiplexing (OFDM) subcarriers is proposed, verifying that it is feasible to extract randomness from both time and frequency domains of the OFDM subcarrier's channel responses.
Secure wireless communications: Secret keys through multipath
  • A. Sayeed, A. Perrig
  • Computer Science
    2008 IEEE International Conference on Acoustics, Speech and Signal Processing
  • 2008
This work proposes a protocol that exploits the inherent randomness in multipath wireless channels for generating secret keys through channel estimation and quantization and shows that the resulting keys are distinct for distinct pairwise links with a probability that increases exponentially with the key-size/channel DoF.
Secret Key Extraction from Wireless Signal Strength in Real Environments
An environment adaptive secret key generation scheme that uses an adaptive lossy quantizer in conjunction with Cascade-based information reconciliation and privacy amplification is developed, which shows that the scheme performs the best in terms of generating high entropy bits at a high bit rate.
Power Allocation for Artificial-Noise Secure MIMO Precoding Systems
  • S. Tsai, H. Poor
  • Physics, Computer Science
    IEEE Transactions on Signal Processing
  • 2014
This paper investigates the power allocation problem for artificial noise (AN) secure precoding systems, and proposes closed-form solutions for maximizing the achievable secrecy rate, and shows that equal power and water-filling power allocations lead to similar solutions and rate loss.
Secret Key Extraction in Ultra Wideband Channels for Unsynchronized Radios
It is demonstrated that high secure key generation rates are possible and it is shown that these key rates can be generated over a wide range of signal to noise ratios and channel synchronization errors.