Noncoherent Short-Packet Communication via Modulation on Conjugated\n Zeros

2018/05/20 by Philipp Walk, Peter Jung, Walk, Philipp +3
Computer Science · Engineering · #Advanced Adaptive Filtering Techniques #Blind Source Separation Techniques #FOS: Computer and information sciences #Image and Signal Denoising Methods #Information Theory (cs.IT) #Speech and Audio Processing

paper · pdf · doi:10.48550/arxiv.1805.07876

openalex publication_date 2018/05/20 · openalex created_date 2022/10/01 · openalex updated_date 2026/07/28

Abstract

We introduce a novel blind (noncoherent) communication scheme, called\nmodulation on conjugate-reciprocal zeros (MOCZ), to reliably transmit short\nbinary packets over unknown finite impulse response systems as used, for\nexample, to model underspread wireless multipath channels. In MOCZ, the\ninformation is modulated onto the zeros of the transmitted signals\nz-transform. In the absence of additive noise, the zero structure of the\nsignal is perfectly preserved at the receiver, no matter what the channel\nimpulse response (CIR) is. Furthermore, by a proper selection of the zeros, we\nshow that MOCZ is not only invariant to the CIR, but also robust against\nadditive noise. Starting with the maximum-likelihood estimator, we define a low\ncomplexity and reliable decoder and compare it to various state-of-the art\nnoncoherent schemes.\n

Citations

• Blind Deconvolution with Additional Autocorrelations via Convex Programs
• Reconstruction of signals from their autocorrelation and\n cross-correlation vectors, with applications to phase retrieval and blind\n channel estimation

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