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    Browsing by Author "Ghazal, Ammar"

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      • A 3D GBSM for high-speed train communication systems under deep cutting scenarios 

        Feng, Liu; Fan, Pingzhi; Wang, Cheng-Xiang; Ghazal, Ammar (Conference)
        This paper proposes a novel three-dimensional (3D) cylinder geometry-based stochastic model (GBSM) for non-isotropic multiple-input multiple-output (MIMO) Rice fading channels in high-speed train (HST) wireless communications ...
      • Accuracy-Complexity Tradeoff Analysis and Complexity Reduction Methods for Non-Stationary IMT-A MIMO Channel Models 

        Zhang, Yan; Ghazal, Ammar; Wang, Cheng-Xiang; Zhou, Hongrui; Duan, Weiming; Aggoune, el-Hadi (Article)
        High-mobility wireless communication systems have attracted growing interests in recent years. For the deployment of these systems, one fundamental work is to build accurate and efficient channel models. In high-mobility ...
      • Channel Measurements and Models for High-Speed Train Communication Systems: A Survey 

        Wang, Cheng-Xiang; Ghazal, Ammar; Ai, Bo; Liu, Yu; Fan, Pingzhi (Article)
        The recent development of high-speed trains (HSTs) as an emerging high mobility transportation system, and the growing demands of broadband services for HST users, introduce new challenges to wireless communication systems ...
      • Channel Measurements and Models for High-Speed Train Wireless Communication Systems in Tunnel Scenarios: A Survey 

        Liu, Yu; Ghazal, Ammar; Wang, Cheng-Xiang; Ge, Xiaohu; Yang, Yang; Zhang, Yapei (Article)
        The rapid developments of high-speed trains (HSTs) introduce new challenges to HST wireless communication systems. Realistic HST channel models play a critical role in designing and evaluating HST communication systems. ...
      • A generic non-stationary MIMO channel model for different high-speed train scenarios 

        Ghazal, Ammar; Wang, Cheng-Xiang; Liu, Yu; Fan, Pingzhi; Chahine, Mohamed Khaled (Conference)
        This paper proposes a generic non-stationary wideband geometry-based stochastic model (GBSM) for multiple-input multiple-output (MIMO) high-speed train (HST) channels. The proposed generic model can be applied on the three ...
      • A Multi-mode Waveguide Tunnel Channel Model for High-Speed Train Wireless Communication Systems 

        Liu, Yu; Wang, Cheng-Xiang; Ghazal, Ammar; Wu, Shangbin; Zhang, Wensheng (Conference)
        The recent development of high-speed trains (HSTs) introduces new challenges to wireless communication systems for HSTs. For demonstrating the feasibility of these systems, accurate channel models which can mimic key ...
      • A Non-Stationary IMT-Advanced MIMO Channel Model for High-Mobility Wireless Communication Systems 

        Ghazal, Ammar; Yuan, Yi; Wang, Cheng-Xiang; Zhang, Yan; Yao, Qi; Zhou, Hongrui; Duan, Weiming (Article)
        With the recent developments of high-mobility wireless communication systems, e.g., high-speed train (HST) and vehicle-to-vehicle (V2V) communication systems, the ability of conventional stationary channel models to mimic ...
      • A Nonstationary Wideband MIMO Channel Model for High-Mobility Intelligent Transportation Systems 

        Ghazal, Ammar; Wang, Cheng-Xiang; Ai, Bo; Yuan, Dongfeng; Haas, Harald (Article)
        The recent development of high-speed trains (HSTs), as a high-mobility intelligent transportation system, and the growing demands of broad-band services for HST users, introduce new challenges to wireless communication ...
      • Performance Investigation of Spatial Modulation Systems Under Non-Stationary Wideband High-Speed Train Channel Models 

        Fu, Yu; Wang, Cheng-Xiang; Ghazal, Ammar; Aggoune, el-Hadi M.; Alwakeel, Mohammed M. (Article)
        In this paper, the bit error rate (BER) performance of a new multiple-input-multiple-output technique, named spatial modulation (SM), is studied under a novel non-stationary wideband high-speed train (HST) channel model ...
      • Statistical Properties of High-Speed Train Wireless Channels in Different Scenarios 

        Liu, Yu; Zhang, Yapei; Ghazal, Ammar; Wang, Cheng-Xiang; Yang, Yang (Conference)
        In this paper, we compare the statistical properties of high-speed train (HST) wireless channels in different scenarios using a generic non-stationary HST channel model that has been verified by channel measurements (Ghazal ...

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