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How significant is the assumption of the uniform channel phase distribution on the performance of spatial multiplexing MIMO system?

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Abstract

Spatial multiplexing (SMX) multiple-input multiple-output (MIMO) systems are promising candidates to enhance the achievable throughput and the overall spectral efficiency in future wireless systems. Performance studies of these systems over different channel conditions assume simplified models for the channel phase distribution. This paper highlights the impact of the channel phase distribution assumption on the performance of SMX MIMO systems. The Nakagami-m and the \(\eta -\mu\) fading channels are considered in this study. In existing literature, performance studies of SMX MIMO systems over Nakagami-m fading channel assume uniform phase distribution. Though, it has been reported recently that the Nakagami-m channel phase distribution is not uniform. In this article, we show that the assumption of the channel phase distribution has a major impact on the performance of SMX MIMO systems. The obtained results demonstrate that the performance of SMX MIMO systems significantly varies with different channel phase distributions. Furthermore, it is shown that uniform assumption of channel phase distribution is incorrect and leads to erroneous conclusions. Detailed performance analysis for more accurate channel models are provided and results are sustained through Monte-Carlo simulations.

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Authors and Affiliations

  1. Communications Engineering Department, School of Computer Engineering and Information Technology, German Jordanian University, Amman Madaba Street, P.O. Box 35247, Amman, 11180, Jordan

    Raed Mesleh

  2. Electrical Engineering Department, Faculty of Engineering, University of Tabuk, P.O. Box: 741, 71491, Tabuk, Saudi Arabia

    Osamah S. Badarneh & Fares S. Almehmadi

  3. Electrical and Electronics Engineering Department, Faculty of Engineering, University of Benghazi, P.O. Box: 7051, Benghazi, Libya

    Abdelhamid Younis

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  1. Raed Mesleh
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  2. Osamah S. Badarneh
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  3. Abdelhamid Younis
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  4. Fares S. Almehmadi
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Correspondence to Raed Mesleh.

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Mesleh, R., Badarneh, O.S., Younis, A. et al. How significant is the assumption of the uniform channel phase distribution on the performance of spatial multiplexing MIMO system?. Wireless Netw 23, 2281–2288 (2017). https://doi.org/10.1007/s11276-016-1286-z

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