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Comparison of Single-Carrier and Multi-Carrier QAM System Performance in the Presence of Carrier Phase Jitter

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Abstract

In this contribution, we investigate how the carrier phase jitter of a phase-locked oscillator for IF-to-baseband conversion affects the performance of single-carrier QAM (SC-QAM) and multi-carrier QAM (MC-QAM); the considered multi-carrier system is of the OFDM (orthogonal frequency-division multiplexed) type. This phase jitter reduces the signal-to-noise ratio (SNR) at the input of the decision device, and therefore gives rise to an increase of the bit error rate. We show that, for a given jitter variance, SC-QAM and MC-QAM yield the same SNR degradation. However, when the synchronization for MC-QAM is derived from a pilot tone, we point out that the resulting jitter variance is considerably larger than for SC-QAM, in which case MC-QAM is degraded much more than SC-QAM.

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Authors and Affiliations

  1. Communications Engineering Lab., University of Ghent, B-9000, Gent, Belgium; E-mail

    Thierry Pollet & Marc Moeneclaey

  2. Societe Anonyme de Telecommunications, 75626, Paris Cedex 13, France

    Isabelle Jeanclaude & Hikmet Sari

Authors
  1. Thierry Pollet
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  2. Marc Moeneclaey
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  3. Isabelle Jeanclaude
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  4. Hikmet Sari
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Pollet, T., Moeneclaey, M., Jeanclaude, I. et al. Comparison of Single-Carrier and Multi-Carrier QAM System Performance in the Presence of Carrier Phase Jitter. Wireless Personal Communications 8, 205–218 (1998). https://doi.org/10.1023/A:1008881323119

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  • DOI: https://doi.org/10.1023/A:1008881323119

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