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Impact of Statistical Multiplexing on Voice Quality in Cellular Networks

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Abstract

This paper examines the quality of transmission of voice over cellular, packet-switched networks. The medium access mechanism in the uplink is simulated under various statistical multiplexing scenarios in order to assess the effect of front-end clipping on voice quality. Moreover, the simulation is implemented in a real-time demonstration platform utilized to acquire subjective indicators of voice quality by performing Mean Opinion Score (MOS) tests. Results from the MOS tests are reported, and an analysis of the obtained speech samples is presented. Finally, the results are summarized and potential further directions for the simulation tool and the speech models are discussed.

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Authors and Affiliations

  1. Global Wireless Systems Research, Bell Labs, Lucent Technologies, Optimus, Swindon, SN5 6PP, UK

    Thomas Enderes & Clare A. Somerville

  2. Division of Engineering, King's College London, Strand, London, WC2R 2LS, UK

    Swee Chern Khoo

  3. Telou & Petroutsou 14, Maroussi, Raycap Corporation, Athens, 15124, Greece

    Kostas Samaras

Authors
  1. Thomas Enderes
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  2. Swee Chern Khoo
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  3. Clare A. Somerville
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  4. Kostas Samaras
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Enderes, T., Khoo, S.C., Somerville, C.A. et al. Impact of Statistical Multiplexing on Voice Quality in Cellular Networks. Mobile Networks and Applications 7, 153–161 (2002). https://doi.org/10.1023/A:1013846205975

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