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12 Result(s)

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  1. No Access

    Article

    Impulse Noise Suppression by Deep Learning-Based Receivers in OFDM Systems

    Orthogonal Frequency Division Multiplexing (OFDM) systems are prone to signal corruption caused by strong and frequent impulses, which can be further exacerbated by multipath fading. Recent evolutions highligh...

    Der-Feng Tseng, Che-Shien Lin, Shu-Ming Tseng in Wireless Personal Communications (2024)

  2. No Access

    Article

    Reduced Complexity Hybrid Beamforming for Time-Varying Channels in Millimeter Wave MIMO Systems

    Millimeter wave (mmWave) communication and multiple-input multiple-output (MIMO) are two important technologies for future communication systems. Hybrid precoding and combining have been used to reduce the cos...

    Ang-Yun Lu, Yung-Fang Chen, Shu-Ming Tseng in Wireless Personal Communications (2022)

  3. No Access

    Article

    Deep Learning Based Decoding for Polar Codes in Markov Gaussian Memory Impulse Noise Channels

    In previous papers, decoding schemes which did not use machine learning considered additive white Gaussian noise or memoryless impulse noise. The decoding methods applying deep learning to reduce computational...

    Shu-Ming Tseng, Wei-Cheng Hsu, Der-Feng Tseng in Wireless Personal Communications (2022)

  4. No Access

    Article

    Low Complexity User Selection and Power Allocation for Uplink NOMA Beamforming Systems

    In this paper, we develop user selection and power allocation methods for NOMA systems equipped with multi-antenna to enhance the sum capacity of the uplink. The system has the base station (BS) with \( N \)N ant...

    Yu-Hsin Chen, Yung-Fang Chen, Shu-Ming Tseng… in Wireless Personal Communications (2020)

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    Article

    Cross Layer Power Control and User Pairing for DL Multi-antenna NOMA

    In a previous study, Kim et al. proposed a suboptimal user pairing and optimal power control algorithm for maximizing sum capacity in downlink multi-antenna non-orthogonal multiple access (NOMA) systems. First...

    Shu-Ming Tseng, Yung-Fang Chen, Kuan-Cheng Liu in Wireless Personal Communications (2019)

  6. No Access

    Article

    A Resource Allocation Scheme with Fractional Frequency Reuse in Multi-cell OFDMA Systems

    In this paper, a resource allocation scheme is proposed for multi-cell OFDMA systems in downlink under the fractional frequency reuse environments. The objective considers balancing between the maximization of...

    Wei-Chen Pao, Wen-Bin Wang, Shu-Ming Tseng… in Wireless Personal Communications (2018)

  7. No Access

    Article

    Cross Layer 1, 2 and 5 Resource Allocation in Uplink Turbo-coded HARQ Based OFDMA Video Transmission Systems

    Wang et al. propose the cross layer resource allocation algorithm considering channel state information in layer 1 and rate-distortion function in layer 5, for uplink convolutional coded OFDMA video transmissi...

    Yung-Fang Chen, Shu-Ming Tseng, Chun-Hung Shen… in Wireless Personal Communications (2018)

  8. No Access

    Article

    Distributed Orthogonal and Quasi-Orthogonal Space-Time Block Code with Embedded AAF/DAF Matrix Elements in Wireless Relay Networks with Four Relays

    We consider cooperative networks of one source, four relays, and one destination. Each of them has a single antenna. The four relays use a proposed full rate distributed quasi orthogonal space time block code ...

    Shu-Ming Tseng, Che-Ying Liao in Wireless Personal Communications (2014)

  9. No Access

    Article

    Throughput Analysis of DS CDMA/Unslotted ALOHA Wireless Networks with Fixed Packet Length in Rayleigh Fading Finite-State Markov Channel Model

    We propose the finite-state Markov channel (FSMC) model to the throughput analysis of DS CDMA/unslotted ALOHA wireless networks in the mobile environment. The FSMC model can characterize the correlation struct...

    Shu-Ming Tseng, Hung-Pin Lin, Chih-Hao Chen… in Wireless Personal Communications (2013)

  10. No Access

    Article

    Iterative Channel Decoding for PC-Based Software Radio DVB-T Receiver

    The previous scheme only modifies the Viterbi decoder input positions where the Reed-Solomon decoder makes sure they are correct. Although it is simple and can get perfect image quality in static channels, it ...

    Shu-Ming Tseng, Yueh-Teng Hsu, Hong-Kung Lin in Wireless Personal Communications (2013)

  11. No Access

    Article

    Simpler Throughput Analysis of CDMA/Unslotted ALOHA Radio Networks with Variable Message Length Based on M/M/inf Queueing Model

    We propose a new and exact method to analyze the throughput of the DS CDMA unslotted ALOHA system with variable number of fixed-length packets. The proposed scheme requires two-dimensional summation while the ...

    Shu-Ming Tseng, Chun-Wei Hsu, Yung-Chung Wang in Wireless Personal Communications (2010)

  12. No Access

    Article

    Vector Channel Estimation and Multiuser Detection for Multicarrier DS CDMA in Time and Frequency Selective Fading Channels

    In a multicarrier direct-sequence code-division multiple access (MC DS CDMA) system, different fading channels for different users and/or different carriers are correlated in general; thus a vector channel mod...

    Shu-ming Tseng in Wireless Personal Communications (2007)