Research of anti-multi tone jamming based on OFDM video transmission system

Yang, Yongjie; Sui, Hui-Jing

doi:10.1109/car.2010.5456554

2010 2nd International Asia Conference on Informatics in Control, Automation and Robotics (CAR 2010) 2010

DOI: 10.1109/car.2010.5456554

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Research of anti-multi tone jamming based on OFDM video transmission system

Yongjie Yang

Hui-Jing Sui

Abstract: A bstract-orthogonaI frequency-division multiplexing (OFDM) technology with the DCT encoding, orthogonal coding can make the transmitted video data extended to sub-channel of the each group, and this can improve the capability of the wellnarrowband jamming system. Experimental results show that, the coding method can not only make good use of the transmission of the video data, but it also has very c1ear-Narrowband interference robustness. And the mistakenly bit rate ofsystem has been improved significantly.

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2015

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Equalization attacks against OFDM: analysis and countermeasures

Shahriar

Clancy

McGwier

2015

Wireless Communications

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This paper introduces, investigates, and proposes power‐efficient equalization jamming attacks against the orthogonal frequency division multiplexing (OFDM) and possible countermeasures. Signals known a priori, called pilot tones, are employed in the conventional OFDM‐based systems to estimate the channel response and perform equalization. Attacks against these pilot tones can hamper equalization and degrade target's performance. This paper begins with noise‐based pilot tone jamming and moves onto pilot nulling attack. The paper embraces two mitigation strategies of randomizing the pilot tones. The paper presents mathematical model of effective noise per symbol and simulation results for OFDM systems with conventional and randomized pilot‐tones under such attacks. The paper concludes that the noise‐based pilot tone attacks are power efficient than conventional attacks, and the pilot nulling is capable of doing the most damage, but in the expense of additional channel state information. The paper also claims that the mitigation strategies offer a remedy, but works relatively poorly when no jammer is present. Copyright © 2015 John Wiley & Sons, Ltd.

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Equalization attacks against OFDM: analysis and countermeasures

Shahriar

Clancy

McGwier

2015

Wireless Communications

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show abstract

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Research of anti-multi tone jamming based on OFDM video transmission system

Cited by 1 publication

References 12 publications

Equalization attacks against OFDM: analysis and countermeasures

Equalization attacks against OFDM: analysis and countermeasures

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