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Near-optimal signal demodulation method with a special quasi-Gaussian weight function

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Abstract

We consider a GSM cellular communication system using the enhanced general packet radio service (EGPRS) for high-speed information exchange. Transmission is performed by signals with eight-phase-shift keying (8-PSK) modulation with a special quasi-Gaussian weight function. To optimize demodulation of such signals in the presence of Rayleigh fadings, we propose a method using partial measurement of metrics, preliminary estimation of symbols, and decision feedback. We present the results of numerical simulation for the case of a channel with Rayleigh fadings of signals. High efficiency of the proposed method for demodulation of 8-PSK modulated signals is confirmed.

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Authors and Affiliations

  1. N. I. Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia

    A. V. Kalinin

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  1. A. V. Kalinin
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 49, No. 12, pp. 10752–1084, December 2006.

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Kalinin, A.V. Near-optimal signal demodulation method with a special quasi-Gaussian weight function. Radiophys Quantum Electron 49, 979–987 (2006). https://doi.org/10.1007/s11141-006-0131-0

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  • DOI: https://doi.org/10.1007/s11141-006-0131-0

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