Article

Article title FREQUENCY AND PHASE MODULATION USING FOR MULTIFREQUENCY COMMUNICATION IN CASE MULTIPATH PROPAGATION
Authors L.G. Stacenko, E.I. Zheleznyukov, A.A. Kovy’lin
Section SECTION II. PROCESSING OF SIGNALS
Month, Year 01, 2011 @en
Index UDC 621.376.9
DOI
Abstract The article peak-factor reducing method of multifrequency signal with adding frequency (phase) modulation is considered. Noise resistance in additive white gaussian noise, fast fading Relay channels with frequency offset are considered. Theoretical and practical bit error rate for different frequency (phase) modulation index is defined and difference (benefits and drawback) of proposed method is shown. Noncoherent detection method have been proposed that use quadrature demodulation scheme. Proposed system simulation was performed in program Matlab Simulink for case of different carrier quantities, inserting guarding interval, using noise resisting coding, different values of the frequency Doppler shift.

Download PDF

Keywords Orthogonal frequency division multiplexing (OFDM); peak-factor; noise resistance; noncoherent reception; additive white Gaussian noise.
References 1. Thompson S.C., Ahmed A.U., Proakis J.G., Zeidler J.R. Constant Envelope OFDM Phase Modulation: Spectral Containment, Signal Space Properties and Performance, in Proc. IEEE Milcom, Vol. 2, Monterey, Oct. 2004. – P. 1129-1135.
2. Феер К. Беспроводная цифровая связь. Методы модуляции и расширения спектра: Пер. с англ. / Под ред. В.И. Журавлева. – М.: Радио и связь, 2000. – 520 с.
3. Родионов А.Ю. Многочастотные цифровые системы связи в условиях многолучевого распространения и их энергетическая эффективность // Вестник ДВО РАН. – 2007. – № 1. – С. 69-72.
4. Стаценко Л.Г., Родионов А.Ю. Комплексный анализ помехоустойчивости многочастотных сигналов COFDM с частотной модуляцией // Вестник Воронежского университета. Серия: физика, математика. – 2007. – № 1.

Comments are closed.