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OSIC-Based SD MIMO Detection Algorithm for LTE-A Downlink Physical Layer

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Abstract

This paper presents the performance of a Long Term Evolution-Advanced (LTE-A) downlink physical layer with multiple-input multiple-output (MIMO) detection algorithms in terms of bit error rate (BER) and throughput. This paper proposes a scalable and applicable Ordered Successive Interference Cancellation-based Sphere Decoding (OSIC-based SD) algorithm with higher performance. The proposed OSIC-based SD algorithm is characterized by dividing a large MIMO detector into small dimension blocks, and then the general detection method such as OSIC can be applied in each part with smaller dimension. This algorithm utilizes the SD algorithm to detect the first data streams and overcome error propagation problem with high signal-to interference noise ratio. Then, it applies OSIC algorithm with small dimension to detect other data streams. This paper investigates the performance of the proposed algorithm and compares its performance with other detection algorithms. The proposed algorithm is mathematically illustrated and evaluated by calculating BER and throughput for different transmit and receive antennas. Simulation results show that the proposed algorithm provides a better performance and low BER values compared to classical algorithms. Significant throughput gains can be achieved by employing the proposed OSIC-based SD algorithm. Finally, OSIC-based SD algorithm enhances the performance of LTE-A downlink physical layer.

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Authors and Affiliations

  1. Department of Electronics and Electrical Communications, Faculty of Electronic Engineering, Menoufia University, Menouf, 32952, Egypt

    Mohamed G. El-Mashed & Sayed El-Rabaie

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  1. Mohamed G. El-Mashed
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  2. Sayed El-Rabaie
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Correspondence to Mohamed G. El-Mashed.

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El-Mashed, M.G., El-Rabaie, S. OSIC-Based SD MIMO Detection Algorithm for LTE-A Downlink Physical Layer. Wireless Pers Commun 80, 751–768 (2015). https://doi.org/10.1007/s11277-014-2039-x

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  • DOI: https://doi.org/10.1007/s11277-014-2039-x

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