An integrating channel coding and cryptography design for OFDM based WLANs

Lin, Wei; Yen, Jui-Cheng

doi:10.1109/isce.2009.5156995

Cited by 7 publications

(1 citation statement)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recently, OFDM has been widely used in wireless communications due to its high performance and low complexity, and the physical layer security in the application of OFDM systems is also well-noticed. Early informationtheoretic based techniques utilized in OFDM systems are basically channel coding and cryptography [9]- [11]. In [12], the authors proposed a time-domain AN based physical layer security technology in OFDM systems.…”

Section: Introductionmentioning

confidence: 99%

MMSE-based-filter and artificial noise design for MIMO–OFDM systems

Liu

Xiao

et al. 2017

Wireless Netw

View full text Add to dashboard Cite

Physical layer security has been considered as an important security approach in wireless communications to protect legitimate transmission from passive eavesdroppers. This paper investigates the physical layer security of a wireless multipleinput multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) communication system in the presence of a multiple-antenna eavesdropper. We first propose a transmitfilter-assisted secure MIMO-OFDM system which can destroy the orthogonality of eavesdropper's signals. Our proposed transmit filter can disturb the reception of eavesdropper while maintaining the quality of legitimate transmission. Then, we propose another artificial noise (AN)-assisted secure MIMO-OFDM system to further improve the security of the legitimate transmission. The time-domain AN signal is designed to disturb the reception of eavesdropper while the legitimate transmission will not be affected. Simulation results are presented to demonstrate the security performance of the proposed transmit filter design and AN-assisted scheme in the MIMO-OFDM system.Index Terms-Physical layer security, transmit filter, MIMO-OFDM, artificial noise, power allocation.

show abstract

Section: Introductionmentioning

confidence: 99%

MMSE-based-filter and artificial noise design for MIMO–OFDM systems

Liu

Xiao

et al. 2017

Wireless Netw

View full text Add to dashboard Cite

show abstract

Physical-Layer Secrecy for OFDM Transmissions Over Fading Channels

Renna

Laurenti

Poor

2012

IEEE Trans.Inform.Forensic Secur.

View full text Add to dashboard Cite

This paper considers the information theoretic secrecy rates that are achievable by an orthogonal frequency-division multiplexing (OFDM) transmitter/receiver pair in the presence of an eavesdropper that might either use an OFDM structure or choose a more complex receiver architecture. The analysis is made possible by modeling the system as a particular instance of a high dimensional multiple-input multiple-output wiretap channel. The secrecy capacity is formulated as a maximization problem under a trace constraint, and simple expressions are given for its high signal-to-noise (SNR) limit. The low rate limit of the secrecy outage probability is also evaluated under a fading channel model. As for the finite SNR case, the secrecy rates that can be achieved with particular inputs are considered. Numerical results are provided under a Rayleigh fading channel model and under dependence of the main and eavesdropper channels. The secrecy loss due to the OFDM structure constraints, and the information gain for an eavesdropper that uses amore complex receiver, are also considered

show abstract

Eavesdropping-Resilient OFDM System Using Sorted Subcarrier Interleaving

Wang

Chouinard

2015

IEEE Trans. Wireless Commun.

View full text Add to dashboard Cite

An integrating channel coding and cryptography design for OFDM based WLANs

Cited by 7 publications

References 8 publications

MMSE-based-filter and artificial noise design for MIMO–OFDM systems

MMSE-based-filter and artificial noise design for MIMO–OFDM systems

Physical-Layer Secrecy for OFDM Transmissions Over Fading Channels

Eavesdropping-Resilient OFDM System Using Sorted Subcarrier Interleaving

Contact Info

Product

Resources

About