نتایج جستجو برای: broadband power line communication
تعداد نتایج: 1194843 فیلتر نتایج به سال:
Broadband Power Line Communications (PLC) technology allows the usage of electrical power supply networks for communications purposes, such as audio/video streaming and broadband internet access. The powerline has an inherent characteristic that is the cyclic variation of channel and noise with the phase of the AC line cycle. To achieve either high throughput or high robustness, we apply dynami...
Smart Grids are composed of many features and new technologies which gradually incorporated to traditional electrical networks. Metering is one these features, it remotely manages consumers, enables fraud prevention, identifies faults shutdowns, distribution transformers, among others. In this context, paper presents the development a complete System utilizes Power Line Communication (PLC) tech...
As part of the development of a general strategy, we present a framework for the establishment of sustainable broadband communication in under-served areas of developing regions often described in terms of low population density, low purchasing power, intermittent power supply, and lack of competent human resources. Due to an increasing political awareness of the importance of ICT for developme...
Power Line Communication (PLC) technologies are being used in many applications and offer the advantage of utilizing existing power cables for both data transmission, thus minimizing cost complexity. Nevertheless, PLC technology requires further investigation to solve possible co-existence issues. Indeed, recent studies confirmed that alternative modulation schemes such as Random Pulse Width Mo...
High speed wireless mobile communication systems have become increasingly important in battlefield command/control and in sensor network systems for national defense and security. The project investigates advanced design of bandwidth efficient retransmission diversity in multi-inputmulti-output (MIMO) wireless communication systems. We develop optimization techniques in (hybrid) ARQ and MIMO pr...
In this paper, we give an overview of the power line communication (PLC) technology. This paper presents an overview of the research, applications, standards and importance of the power line communication. Power line communication is an emerging home network technology that allows consumers to use their already existing wiring system to connect home appliances to each other and to the Internet....
In this paper, a bit-loading algorithm for DMT (Discrete MultiTone) broadband indoor power line communications is proposed. In noisy channels with high attenuation values, most of the carriers remain empty after the application of conventional strategies. This is due to the limitation in the power spectral density (PSD) mask for the transmitted signal imposed by regulations. Under these circums...
Windowed orthogonal frequency-division multiplexing (OFDM) and wavelet OFDM have been proposed as medium access techniques for broadband communications over the power line network by the standard IEEE 1901. Windowed OFDM has been extensively researched and employed in different fields of communication, while wavelet OFDM, which has been recently recommended for the first time in a standard, has...
The increasing ubiquity of the Internet is creating a rapidly growing demand for larger bandwidth to the home. Currently the narrowband twisted-pair access network from an optical network unit (ONU) or a central office (CO) to a customer’s premises, the socalled “last dirty mile”, is the bottleneck for Internet traffic. The increasing demand for a home/office network further necessitates a flex...
The huge and increasing demand of data connectivity motivates the development of new and effective power line communication (PLC) channel models, which are able to faithfully describe a real communication scenario. This is of fundamental importance since a good model represents a quick evaluation tool for new standards or devices, allowing a considerable saving in time and costs. The aim of thi...
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