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A Single Input-Multiple Output Time Reversal UWB Communication System

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Abstract

Time reversal is a promising technique for the improvement of UWB communication systems. Intersymbol interference (ISI) limits the system performance in such wireless systems. This paper presents a general ISI analysis for time reversal UWB communication systems. The time reversal UWB system gives good performance for rates below the coherence bandwidth but at higher data rates the performance of the system is limited by intersymbol interference and bit error rate saturates even for high signal-to-noise ratio. To mitigate the ISI effects, a single input/multiple output (SIMO) time reversal UWB system is used and its performance is analyzed. It is shown that by using a SIMO TR transceiver, ISI reduces and the system capacity increases. Transmitted signal power at SIMO time reversal decreases, therefore in low data rate SISO performance is better than SIMO, But in high rate scenario, SIMO TR suppresses the ISI better than the SISO TR and its performance is better than SISO TR. It is possible to compensate the reduced power by using a receiver with more sensitivity.

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Authors and Affiliations

  1. School of Electrical Engineering, Department of Telecommunications, Iran University of Science & Technology (IUST), Narmak, Tehran, Iran

    Dariush Abbasi-Moghadam & Vahid Tabataba Vakili

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  1. Dariush Abbasi-Moghadam
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  2. Vahid Tabataba Vakili
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Correspondence to Dariush Abbasi-Moghadam.

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Abbasi-Moghadam, D., Vakili, V.T. A Single Input-Multiple Output Time Reversal UWB Communication System. Wireless Pers Commun 66, 367–383 (2012). https://doi.org/10.1007/s11277-011-0346-z

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  • DOI: https://doi.org/10.1007/s11277-011-0346-z

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