Circular Polarization Modulation for Digital Communication Systems

Z. ul Abidin, Pei Xiao, Vincent Fusco, Muhammad Amin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)


Conventional approaches of digital modulation schemes make use of amplitude, frequency and/or phase as modulation characteristic to transmit data. In this paper, we exploit circular polarization (CP) of the propagating electromagnetic carrier as modulation attribute which is a novel concept in digital communications. The requirement of antenna alignment to maximize received power is eliminated for CP signals and these are not affected by linearly polarized jamming signals. The work presents the concept of Circular Polarization Modulation for 2, 4 and 8 states of carrier and refers them as binary circular polarization modulation (BCPM), quaternary circular polarization modulation (QCPM) and 8-state circular polarization modulation (8CPM) respectively. Issues of modulation, demodulation, 3D symbol constellations and 3D propagating waveforms for the proposed modulation schemes are presented and analyzed in the presence of channel effects, and they are shown to have the same bit error performance in the presence of AWGN compared with conventional schemes while provide 3dB gain in the flat Rayleigh fading channel.
Original languageEnglish
Title of host publicationCommunication Systems, Networks & Digital Signal Processing (CSNDSP), 2012 8th International Symposium on
Place of PublicationPoznan
Number of pages6
Publication statusPublished - 08 Jul 2012

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Signal Processing

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