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Advanced Search Results For "Nguyen, Ha H."

1 - 10 of 3,842 results for
 "Nguyen, Ha H."
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Resource allocation for IRS‐assisted MC MISO‐NOMA system

Publication Type: Academic Journal

Source(s): IET Communications, Vol 16, Iss 13, Pp 1617-1627 (2022)

Abstract: Abstract In this paper, a downlink multi‐user communication of an intelligent reflecting surface (IRS)‐assisted multiple‐input single‐output (MISO) power‐domain non‐orthogonal multiple access (NOMA) system is investigated. Considering multi‐carrier (MC...

All-inside arthroscopic anterior cruciate ligament reconstruction with internal brace Ligament Augmentation using semitendinosus tendon autograft: A case series

Publication Type: Academic Journal

Source(s): Asia-Pacific Journal of Sports Medicine, Arthroscopy, Rehabilitation and Technology, Vol 29, Iss , Pp 15-21 (2022)

Abstract: Introduction and importance: Anterior Cruciate Ligament (ACL) reconstruction surgery has been proven to be closely related to the graft healing process, which can last up to 12 months after surgery. In recent years, through various biomechanical and cl...

Filter Optimization for MFTN-OQAM Systems

Publication Type: Academic Journal

Source(s): IEEE Access, Vol 10, Pp 89358-89366 (2022)

Abstract: In this paper, a novel and effective method for designing the pulse shaping filter for multicarrier faster-than-Nyquist with offset quadrature amplitude modulation (MFTN-OQAM) systems is proposed. The connection between the signal-to-interference ratio...

Novel PAPR Reduction Algorithms for OFDM Signals

Publication Type: Academic Journal

Source(s): IEEE Access, Vol 10, Pp 77452-77461 (2022)

Abstract: This paper proposes two efficient peak-to-average power ratio (PAPR) reduction algorithms for OFDM signals based on the principle of tone reservation. The first algorithm is performed in the time domain, whereas the second algorithm is a new clipping-a...

Security Threats and Mitigation Techniques in UAV Communications: A Comprehensive Survey

Publication Type: Academic Journal

Source(s): IEEE Access, Vol 10, Pp 112858-112897 (2022)

Abstract: Unmanned aerial vehicles (UAVs) have been instrumental in enabling many new applications and services, including military and rescue operations, aerial surveillance, civilian applications, precision farming, as well as providing extensive wireless netw...

Globally Optimal Resource Allocation and Time Scheduling in Downlink Cognitive CRAN Favoring Big Data Requests

Publication Type: Academic Journal

Source(s): IEEE Access, Vol 10, Pp 27504-27521 (2022)

Abstract: This paper is concerned with a cognitive cloud radio access network (CRAN) with a special attention to efficient and reliable downlink transmission of big data for secondary users (SUs). Existing approaches either try to maximize the number of accepted...

User Clustering and Resource Allocation in Hybrid NOMA-OMA Systems Under Nakagami-m Fading

Publication Type: Academic Journal

Source(s): IEEE Access, Vol 10, Pp 38709-38728 (2022)

Abstract: In this paper, we tackle the problem of optimizing user clustering, power, and resource (time slot or bandwidth) allocation in the downlink of a hybrid non-orthogonal multiple access (NOMA)-orthogonal multiple access (OMA) system. In such a system, use...

Learning From Limited and Imbalanced Medical Images With Finer Synthetic Images From GANs

Publication Type: Academic Journal

Source(s): IEEE Access, Vol 10, Pp 91663-91677 (2022)

Abstract: Chest X-ray is a prevalent medical imaging modality for detecting lung diseases. The clinical analysis of X-ray images is usually conducted by radiologists, who represent valuable human resources. In practice, situations with insufficient radiologists ...

Outage Balancing in Downlink NOMA Over Nakagami-m Fading Channels

Publication Type: Academic Journal

Source(s): IEEE Access, Vol 9, Pp 102886-102898 (2021)

Abstract: In this paper, we investigate joint optimization of power allocation factors (PAFs) and decoding order of users in the downlink of a non-orthogonal multiple access (NOMA) system over Nakagami- $m$ fading channels. The objective is to guarantee fairness...

Optimization of Partial Transmit Sequences for PAPR Reduction of OFDM Signals Without Side Information

Publication Type: Periodical

Source(s): IEEE Transactions on Broadcasting; 2023, Vol. 69 Issue: 1 p313-321, 9p

Abstract: This paper develops a novel optimization of partial transmit sequences (PTS) with phase quantization to reduce the peak-to-average-power ratio (PAPR) of orthogonal frequency-division multiplexing (OFDM) signals and enable data detection without side in...