Noise-Like Signals and Their Detection by Correlation

Basore, B.L.

doi:10.21236/ad0004641

Cited by 29 publications

(22 citation statements)

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“…Such a signaling scheme, referred to as transmitted-reference (TR) signaling, was first considered in the early 1950s [31]. TR signaling involves the transmission of a reference and data signal pair, separated either in time [32], [33] or in frequency [34], [35].…”

Section: Introductionmentioning

confidence: 99%

Unified Analysis of UWB Transmitted-Reference Schemes in the Presence of Narrowband Interference

Quek

Win

Dardari

2007

IEEE Trans. Wireless Commun.

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Abstract-Transmitted-Reference (TR) signaling, in conjunction with an autocorrelation receiver (AcR), offers a lowcomplexity alternative to Rake reception in ultrawide bandwidth systems. This paper provides a unified performance analysis of various TR schemes by developing an analytical framework based on the sampling expansion approach. Specifically, we derive the uncoded bit error probability (BEP) of different TR signaling schemes, including TR and differential TR (DTR) signaling valid for a broad class of fading channels. We consider both AcRs and modified AcRs with noise averaging. We further develop a quasi-analytical method as well as an approximate analytical method to extend the BEP analysis to include the effect of narrowband interference (NBI). We show that the approximate analytical method is particularly useful in obtaining BEP expressions that provide insight into the effect of NBI. We quantify the effects of NBI and channel power dispersion profile on the optimum integration interval of an AcR. Finally, we compare TR and DTR signaling in terms of their sensitivity to NBI.Index Terms-Ultrawide bandwidth systems, transmittedreference, differential transmitted-reference, sampling expansion, narrowband interference.

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Section: Introductionmentioning

confidence: 99%

Unified Analysis of UWB Transmitted-Reference Schemes in the Presence of Narrowband Interference

Quek

Win

Dardari

2007

IEEE Trans. Wireless Commun.

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“…Based on the basis functions, three classes of waveform communications are distinguished, namely communications with • Fixed waveforms [4], [20], [22]; • Chaotic waveforms [3]; • Random waveforms [1].…”

Section: Generalization Of Waveform Communicationsmentioning

confidence: 99%

“…According to (1), the elements of the signal set are represented by basis functions that are known, or at least some of their characteristics are known at the receiver. This a priori knowledge is exploited to perform the detection and suppress channel noise and interference.…”

Section: Signal Model For Detectionmentioning

confidence: 99%

Generalization of Waveform Communications: The Fourier Analyzer Approach

Lau

Tse

2005

Circuits Syst Signal Process

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In digital communications, fixed, chaotic, and random waveforms are used. Although the theory of fixed waveform communications is well established, its generalization to include chaotic and random carriers has not yet been carried out. The lack of an exact model prevents the optimization of chaotic and random communication systems.Introducing the Fourier analyzer concepts, this paper develops a unified model which is equally valid for communications with fixed, chaotic and random carriers. It gives an exact measure for the a priori information which is exploited at the receiver to optimize the noise performance. The unified model may be used to determine the performance bounds of different waveform communication systems and offers a systematic approach for the development of optimum detector configurations. Using the model developed, a new classification of digital communication systems is proposed.

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“…This new technique can be called 'stable non-Gaussian noise parameter modulation' since the binary message is encoded by the parameters of the a-stable noise sequence. Although the idea of using a noise-like carrier goes back to the 1950s [6,9], to the best of our knowledge in the literature only this newly introduced technique uses such a random sequence for encoding the message signal instead of using deterministic signals. Such a random sequence for encoding the message signal can then be considered as a random carrier.…”

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confidence: 99%

Stable non-Gaussian noise parameter modulation in digital communication

Cek

Savacı

2009

Electron. Lett.

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The parameter of the stable non-Gaussian noise sequence is modulated by the binary message sequence to achieve a secure communication system. The characteristic exponent 'alpha' of a stable non-Gaussian noise sequence carries the binary information. The receiver of the proposed random communication system demodulates the received signal by estimating the parameters of the transmitted noise sequence to recover the binary message sequence.

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Noise-Like Signals and Their Detection by Correlation

Cited by 29 publications

References 0 publications

Unified Analysis of UWB Transmitted-Reference Schemes in the Presence of Narrowband Interference

Unified Analysis of UWB Transmitted-Reference Schemes in the Presence of Narrowband Interference

Generalization of Waveform Communications: The Fourier Analyzer Approach

Stable non-Gaussian noise parameter modulation in digital communication

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