نتایج جستجو برای: noma

تعداد نتایج: 2283  

Journal: :Indonesian Journal of Electrical Engineering and Computer Science 2023

Future wireless networks are expected to provide ubiquitous connectivity a wide range of devices with varying traffic patterns, wherever and whenever it is required. Unmanned aerial vehicles (UAVs) also considered potential technique for accommodating massive connections providing seamless coverage. They can be used as flying base stations (BSs) take advantage line-of-sight (LoS) effectively su...

Journal: :IEEE Network 2021

Non-orthogonal multiple access (NOMA) is an efficient approach that can improve spectrum utilization and support massive connectivity for next-generation wireless networks. However, over a channel, the superimposed NOMA signals are highly susceptible to eavesdropping, potentially leading severe leakage of confidential information. In this article, we unleash potential network interference explo...

Journal: :IEEE Transactions on Wireless Communications 2023

Different from traditional reflection-only reconfigurable intelligent surfaces (RISs), simultaneously transmitting and reflecting RISs (STAR-RISs) represent a novel technology, which extends the half-space coverage to full-space by incident signals. STAR-RISs provide new degrees-of-freedom (DoF) for manipulating signal propagation. Motivated above, STAR-RIS assisted non-orthogonal multiple acce...

Journal: :Information 2022

This paper investigates the throughput performance of an incremental virtual full-duplex non-orthogonal multiple access (I-VFD-NOMA) communication system, where two energy harvesting (EH) enabled near users are willing to forward message for far user using decode-and-forward (DF) protocol. If direct link between source and exists, I-VFD-NOMA scheme is used save channel resources. does not exist...

1940
Tehl Ram

A male child, aged about 10 years, was admitted for frequency of stools with blood and mucus for 20 days, following an attack of measles. The patient was extremely emaciated with subnormal temperature and pulse about 120 per minute. Stools, 20 to 30 in a day, consisted of only blood and mucus. Treatment with emetine, kaolin, bismuth and rectal washes caused the frequency of stools greatly to di...

Journal: :IEEE Transactions on Intelligent Transportation Systems 2022

The next-generation wireless networks are expected to support a number of computation-intensive and delay-sensitive applications such as virtual reality (VR), autonomous driving, telesurgery unmanned aerial vehicles (UAVs). Since many devices computation power limited, mobile edge computing (MEC) has been deemed promising way enhance service. In this paper, we propose novel cooperative MEC that...

Journal: :IEEE Transactions on Intelligent Transportation Systems 2021

Quadrature spatial modulation (QSM) is recently proposed to increase the spectral efficiency (SE) of SM, which extends transmitted symbols into in-phase and quadrature domains. In this paper, we propose a generalized QSM (GQSM) scheme further SE by activating more than one transmit antenna in or domain. A low-complexity detection for GQSM provided mitigate burden optimal maximum-likelihood (ML)...

Journal: :KOKUBYO-GAKKAI-ZASSHI 1933

Journal: :Electronics 2022

The power domain non-orthogonal multiple access (PD-NOMA) scheme has gained tremendous interest with the behavior for fifth-generation (5G) wireless communication. Although overall performance is improved through accurate distribution among users’ signals, it depends on user clustering strategy. Moreover, PD-NOMA communication not completely secured due to its broadcast nature, which still a ma...

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