Variance shift keying in wideband communication systems

Sokolov, Rostislav I.; Abdullin, Renat R.

doi:10.1109/telfor.2017.8249366

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Introduction N Modern Communication Systems Nss (Noise-1

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“…At the same time, the signal transmitted should not be detected by means of conventional spectral analyzers. One variant of systems mentioned above is a system based on a brand new type of digital modulation which we suggested in [4] and entitled as VSK (variance shift keying).…”

Section: Introduction N Modern Communication Systems Nss (Noise-mentioning

confidence: 99%

Suitability of variance shift keying for real conditions

Sokolov¹,

Abdullin²

2018

Telfor J

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This paper investigates the possibility of real-life using the brand new type of digital modulation, which implies the transmission of white Gaussian noise whose variance changes in time. That modulation has been entitled as variance shift keying. The signals obtained on its basis have a high level of transmission security, and they even cannot be detected by standard means of matched filtering. However, the paper suggests the decision on how to process these signals at the receiver site. It is proposed to use a specially developed optimal receiver, whose restoration quality appears to be better in comparison with the conventional cumulative receiver. The digital simulation of propagation in frequency selective media has shown the signal with variance shift keying is possible to be used in real conditions since its distribution of instantaneous amplitudes remains Gaussian.

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Section: Introduction N Modern Communication Systems Nss (Noise-mentioning

confidence: 99%