نتایج جستجو برای: relay aided plc

تعداد نتایج: 64168  

Journal: :CoRR 2016
Deli Qiao

In this paper, transmission over buffer-aided diamond relay systems under statistical quality of service (QoS) constraints is studied. The statistical QoS constraints are imposed as limitations on delay violation probabilities. In the absence of channel state information (CSI) at the transmitter, truncated hybrid automatic repeat request-incremental redundancy (HARQ-IR) is incorporated to make ...

Journal: :CoRR 2011
Hyunseok Chang Sae-Young Chung

In this paper, we study the interference relay-without-delay channel which is an interference channel with a relay helping the communication. We assume the relay’s transmit symbol depends not only on its past received symbols but also on its current received symbol, which is an appropriate model for studying amplify-and-forward type relaying when the overall delay spread is much smaller than th...

Journal: :CoRR 2018
Yuzhou Li Yu Zhang Hongkuan Zhou Tao Jiang

Existing works have widely studied relay-aided underwater acoustic networks under some specialized relay distributions, e.g., equidistant and rectangular-grid. In this paper, we investigate two fundamental problems that under which conditions a relay should be deployed and where to deploy it if necessary in terms of the energy and delay performance in linear underwater acoustic networks. To add...

Journal: :International journal of advanced research 2021

The conveyor is usually used in industries to transport the commodity from one end another, and can use it anywhere. As occurrence of faults affect entire generation power, monitoring security these conveyors important. Using relay logic methods, which have many drawbacks, safety carried out, a new method therefore required. This paper focuses on monitoring, control, against different types usi...

Journal: :Academic journal of engineering and technology science 2023

Industrial enterprises use PLC control system to realize the recording and operation of programmable control, combine relay contact controller technology, cloud computing technology solve problems complex internal wiring, low reliability high energy consumption traditional electrical system. In application process effect can be analyzed in technology. we should certain principles, ensure its mo...

Journal: :Electronics 2023

In underground mines, physical layer security (PLS) technology is a promising method for the effective and secure communication to monitor mining process. Therefore, in this paper, we investigate PLS of an amplify-and-forward relay-aided system power monitoring systems mining, with consideration multiple eavesdroppers. Explicitly, propose scheme cooperative jamming precoding full-duplex conside...

2014
Xiang Li Hussein Al-Shatri Rakash SivaSiva Ganesan Daniel Papsdorf Anja Klein Tobias Weber

This paper focuses on signal space interference alignment for the uplink and downlink transmissions in a cellular relay network with multiple cells where a single base station serves multiple mobile stations in each cell and several amplifyand-forward relays are deployed. We show that the interference alignment problems in the uplink and downlink transmissions are a pair of formally dual proble...

Journal: :Plant physiology 2003
Volker Stiller H Renee Lafitte John S Sperry

We investigated the role of xylem cavitation, plant hydraulic conductance, and root pressure in the response of rice (Oryza sativa) gas exchange to water stress. In the field (Philippines), the percentage loss of xylem conductivity (PLC) from cavitation exceeded 60% in leaves even in watered controls. The PLC versus leaf water potential relationship indicated diurnal refilling of cavitated xyle...

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