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Performance of coherent MQAM schemes in the presence of frequency‐selective Rayleigh fading and CCI

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Abstract

Performance of a coherent MQAM system in the presence of frequency-selective Rayleigh fading, co-channel interference (CCI) and additive white Gaussian noise (AWGN) is presented. Square-root raised-cosine filters are used in both the transmitter and receiver for an optimum performance in a band-limited AWGN channel. Frequency-selective Rayleigh fading channel is modeled as a two-ray model. Based on the characteristic functions of the received signals and a discrete Fourier transform (DFT) method, an analytical procedure to compute the error probability is derived. Numerical results for an illustrative example of a 16QAM system are given. Effects of CCI and frequency-selective fading on the system performance are examined. Accuracy of the proposed method is discussed in comparison with other simulation and analytical techniques.

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Authors and Affiliations

  1. Ericsson Research Canada, Canada

    Zengjun Xiang

  2. Department of Electrical and Computer Engineering, Concordia University, Montreal, Canada, H3G 1M8

    Tho Le‐Ngoc

  3. Department of Radio Engineering, Southeast University, Nanjing, P.R. China

    Guangguo Bi

Authors
  1. Zengjun Xiang
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  2. Tho Le‐Ngoc
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  3. Guangguo Bi
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Xiang, Z., Le‐Ngoc, T. & Bi, G. Performance of coherent MQAM schemes in the presence of frequency‐selective Rayleigh fading and CCI. Mobile Networks and Applications 5, 73–84 (2004). https://doi.org/10.1023/A:1019183806857

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