System for power line communication on multi-carrier modulation

System for power line communication on multi-carrier modulation

PURPOSE: A power line communication system using a DMT(Discrete Multi-Tone) modulation type is provided to satisfy an electronic wave limit standard by performing a baseband transmission using the DMT modulation type, raising an output of a transmission signal in a low frequency band, and lowering t...

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Hauptverfasser: CHUN, YU SIK, LIM, SU BIN
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Sprache:eng ; kor
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ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
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LIM, SU BIN
description PURPOSE: A power line communication system using a DMT(Discrete Multi-Tone) modulation type is provided to satisfy an electronic wave limit standard by performing a baseband transmission using the DMT modulation type, raising an output of a transmission signal in a low frequency band, and lowering the output of the transmission signal in a high frequency band. CONSTITUTION: A transmission device(T) multiplies a weight value(N) according to a corresponding carrier for raising an output of a transmission signal in a low frequency band and lowering the output of the transmission signal in a high frequency band. A power line communication channel(35) supplies the signal transmitted from the transmission device(T) to the outside through a power line(32). A receipt device(R) multiplies data information provided through the power line communication channel(35) by a weight value(1/N) and recovers the data for improving a signal-to-noise ratio in the low frequency band and limiting an electronic wave emission in the high frequency band. 본 발명은 다중 반송파 변조방식을 이용한 전력선통신 시스템에 관한 것으로, 다중 반송파 변조에 의해 송신되는 데이터에서 낮은 주파수 대역에는 송신신호의 출력을 높이고, 높은 주파수 대역에는 송신신호를 출력을 낮출 수 있도록 해당 반송파 별로 가중치 N을 곱하여 전송하는 전송장치(T); 상기 전송장치(T)로부터 전송된 신호를 전력선(32)을 통해 외부로 제공하기 위한 전력선 통신채널(35); 및 전용선 통신채널(35)을 통해 제공된 데이터 정보에서 가중치 1/N로 곱하여 데이터를 복원하는 수신장치(R)를 포함하여 전력선을 통한 다중 반송파의 사용범위를 확대할 수 있으며 데이터 비트수를 더 많이 할당하여 고속의 통신을 원할히 수행할 수 있는 효과가 있다.
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CONSTITUTION: A transmission device(T) multiplies a weight value(N) according to a corresponding carrier for raising an output of a transmission signal in a low frequency band and lowering the output of the transmission signal in a high frequency band. A power line communication channel(35) supplies the signal transmitted from the transmission device(T) to the outside through a power line(32). A receipt device(R) multiplies data information provided through the power line communication channel(35) by a weight value(1/N) and recovers the data for improving a signal-to-noise ratio in the low frequency band and limiting an electronic wave emission in the high frequency band. 본 발명은 다중 반송파 변조방식을 이용한 전력선통신 시스템에 관한 것으로, 다중 반송파 변조에 의해 송신되는 데이터에서 낮은 주파수 대역에는 송신신호의 출력을 높이고, 높은 주파수 대역에는 송신신호를 출력을 낮출 수 있도록 해당 반송파 별로 가중치 N을 곱하여 전송하는 전송장치(T); 상기 전송장치(T)로부터 전송된 신호를 전력선(32)을 통해 외부로 제공하기 위한 전력선 통신채널(35); 및 전용선 통신채널(35)을 통해 제공된 데이터 정보에서 가중치 1/N로 곱하여 데이터를 복원하는 수신장치(R)를 포함하여 전력선을 통한 다중 반송파의 사용범위를 확대할 수 있으며 데이터 비트수를 더 많이 할당하여 고속의 통신을 원할히 수행할 수 있는 효과가 있다.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record>
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ELECTRICITY
TRANSMISSION
title System for power line communication on multi-carrier modulation
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