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   Articles with "finite alphabet" as a keyword



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Reconstruction of Finite-Alphabet Block-Sparse Signals From MAP Support Detection

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recommendations! Published in 2019 at "IEEE Access"

DOI: 10.1109/access.2019.2914349

Abstract: This paper addresses finite-alphabet block-sparse signal recovery by considering support detection and data estimation separately. To this aim, we propose a maximum a posteriori (MAP) support detection criterion that takes into account the finite alphabet… read more here.

Keywords: support detection; finite alphabet; map support; support ... See more keywords
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Performance Analysis of Linear Precoding in Massive MIMO Systems With Finite-Alphabet Inputs

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recommendations! Published in 2019 at "IEEE Access"

DOI: 10.1109/access.2019.2925939

Abstract: This paper investigates the performance of linear precoders in massive multiple-input multiple-output (MIMO) systems. Different from the existing research, in this paper, we consider a more realistic scenario, where the input signals are taken from… read more here.

Keywords: finite alphabet; mimo systems; performance; alphabet inputs ... See more keywords
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On Optimizing Multicarrier-Low-Density Codebook for GMAC With Finite Alphabet Inputs

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recommendations! Published in 2017 at "IEEE Communications Letters"

DOI: 10.1109/lcomm.2017.2701801

Abstract: Multicarrier-low-density spreading multiple access (MC-LDSMA) is a novel non-orthogonal multiple access scheme, which exploits a multidimensional codebook based on the sparse spreading technique. In this letter, instead of assuming the ideal Gaussian inputs, we contribute… read more here.

Keywords: alphabet inputs; multicarrier low; low density; codebook ... See more keywords
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Alleviating Secrecy Outage Events via Power Optimization for Finite-Alphabet Inputs

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recommendations! Published in 2022 at "IEEE Wireless Communications Letters"

DOI: 10.1109/lwc.2021.3127956

Abstract: This letter aims at minimizing the total power consumption of security-reliability transmission (SRT) for practical finite-alphabet inputs. To this end, we coercively restrict that the mutual information over the legitimate channel is greater than an… read more here.

Keywords: secrecy outage; outage events; finite alphabet; alphabet inputs ... See more keywords

Resource Allocation for MIMO Full-Duplex Backscatter Assisted Wireless-Powered Communication Network With Finite Alphabet Inputs

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recommendations! Published in 2021 at "IEEE Transactions on Communications"

DOI: 10.1109/tcomm.2020.3035233

Abstract: With practical finite alphabet inputs, usually the throughput of a practical communication system cannot reach the capacity based on assumption of Gaussian inputs. In this paper, we study the resource allocation strategy for multiple-input multiple-output… read more here.

Keywords: full duplex; finite alphabet; allocation; resource allocation ... See more keywords
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Precoder Design for Simultaneous Wireless Information and Power Transfer Systems With Finite-Alphabet Inputs

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recommendations! Published in 2017 at "IEEE Transactions on Vehicular Technology"

DOI: 10.1109/tvt.2017.2712774

Abstract: Existing research on a simultaneous wireless information and power transfer (SWIPT) system is based on the assumption of Gaussian inputs. However, the optimal design on Gaussian inputs may lead to dramatic performance loss for practical… read more here.

Keywords: information; alphabet inputs; precoder design; power ... See more keywords
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Multicell Massive MIMO Multicast Transmission With Finite-Alphabet Inputs

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recommendations! Published in 2019 at "IEEE Transactions on Vehicular Technology"

DOI: 10.1109/tvt.2019.2917069

Abstract: This paper investigates the precoding design for multicast transmission in multicell massive multiple-input multiple-output (MIMO) systems with finite-alphabet inputs. The users within each cell are interested in common information, and different cells provide distinct information.… read more here.

Keywords: finite alphabet; problem; multicell massive; rate ... See more keywords
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Finite-Alphabet Signature Design for Grant-Free NOMA: A Quantized Deep Learning Approach

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recommendations! Published in 2020 at "IEEE Transactions on Vehicular Technology"

DOI: 10.1109/tvt.2020.3006262

Abstract: Grant-free Non-Orthogonal Multiple Access (NOMA) is a promising solution to enable massive wireless access service for 5G systems and beyond. Conventional grant-free NOMA schemes directly apply the spreading signatures optimized for the grant-based scenarios, which,… read more here.

Keywords: finite alphabet; free noma; grant free; noma ... See more keywords

Energy Efficient Transceiver Design for NOMA VLC Downlinks with Finite-Alphabet Inputs

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recommendations! Published in 2018 at "Applied Sciences"

DOI: 10.3390/app8101823

Abstract: Non-orthogonal multiple access (NOMA) is considered as a promising technique in visible light communication (VLC) systems for performance enhancement. In order to improve the system’s energy efficiency, we carry out transceiver design for an NOMA… read more here.

Keywords: noma vlc; design noma; noma; vlc ... See more keywords