Performance of EVM and PCDE quality metrics in WCDMA downlink

Performance of EVM and PCDE quality metrics in WCDMA downlink

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In a WCDMA system, the downlink signal the base station transmits is designed to fulfil the specifications set in the 3GPP standard. Here, the performance of the error vector magnitude (EVM) and peak code domain error (PCDE) quality metrics is impugned. It is shown that the limits of EVM and PCDE do not guarantee that the user will experience an adequate signal-to-noise ratio.


    1. 1)
      • 3GPP Technical Specification Group Access Network, `Base station conformance testing', 2000, TS 25.141 V3.2.0.
    2. 2)
      • Väänänen, O., Vankka, J., Halonen, K.: `Effect of clipping in wideband CDMA system and simple algorithm for peak windowing', World Wireless Congress, May 2002, San Francisco, CA, USA, p. 614–619.
    3. 3)
      • Väänänen, O., Vankka, J., Halonen, K.: `Effect of baseband clipping in wideband CDMA system', IEEE Int. Symp. on Spread Spectrum Techniques and Applications, 2002, Prague, Czech Republic, Accepted for.
    4. 4)
      • A. Papoulis . (1965) Probability, random variables, and stochastic processes.

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