Results 11 to 20 of about 719,011 (231)
Radio resource allocation in relay based OFDMA cellular networks [PDF]
, 2010 PhDAdding relay stations (RS) between the base station (BS) and the mobile stations (MS) in a cellular system can extend network coverage, overcome multi-path fading and increase the capacity of the system.
Xiao, Lin
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Robust transceiver design for MIMO relay systems with tomlinson harashima precoding [PDF]
, 2012 In this paper we consider a robust transceiver design for two hop non-regenerative multiple-input multiple-output (MIMO) relay networks with imperfect channel state information (CSI).
Weiss, Stephan +5 more
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, 2009 PhDWhen this research was started, TD-SCDMA (Time Division Synchronous Code Division Multiple Access) was still in the research/ development phase, but now, at the time of writing this thesis, it is in commercial use in 10 large cities in China ...
Yan, Sun
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MANAS: Journal of Engineering, 2022 In this paper, the influence of the Static Var Compensators (SVC) on distance relay protection when connected to the sub-transmission network of the Nigerian 132-kV grid system is investigated.
Akintunde Alayande +3 more
doaj +1 more source
Microprocessor protection devices: The present and the future [PDF]
Serbian Journal of Electrical Engineering, 2008 Paper presents the analysis of the basic constructive disadvantages of the present day microprocessor-based protective devices (MBR) and offers the basic principles for creating a new MBR that can be used in newly constructed devices.
Gurevich Vladimir
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Design and Implementation of Multifunction Relay Based on Microcontroller
Journal of Techniques, 2021 The power systems are exposed to many abnormal conditions, so an advanced protection system must be provided to stand up to these challenges. Protection devices evolved continuously with the development of power systems.
Ali Abdulsattar Hameed +2 more
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Elektrika, 2022 To reduce damage to electrical power equipment, protective equipment is needed that is designed as well as possible, so that the protection relay can isolate faults in parts of the distribution network as fast as possible.
Andy Frediansyah +2 more
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Development of Railway Protective Relay Simulator for Real-Time Applications
Applied Sciences, 2019 Electric railways use a single-phase system, with the line comprising a trolley wire (TF) that supplies power to the load with a neutral wire and an autotransformer (AF) feeder to absorb the return current of the rail.
Joorak Kim, Gyu-Jung Cho, Jaewon Kim
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Simulation of a Power Transformer Differential Protective Relay [PDF]
Engineering and Technology Journal, 2009 The aim of this work is to simulate a differential relay, which ensures security for external fault, inrush, and overexcitation conditions and provides dependability for internal faults, to protect a single phase power transformer.
Mohammed S. Abdulraheem +1 more
doaj +1 more source
Zhongguo dianli, 2019 At present, the state evaluation for relay devices is too simple, subjective and inconvenient. To make the state evaluation of the relay devices more accurately reflect the state of targeted devices and provide more comprehensive information, a ...
Guosheng YANG +4 more
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