SOFT-DECISION DEMAPPING METHOD FOR DIGITAL SIGNAL

SOFT-DECISION DEMAPPING METHOD FOR DIGITAL SIGNAL

PURPOSE: A soft-decision demapping method of a digital signal is provided to reduce comparison calculation operation, by selecting a spot positioned in constellation with only phase information of a symbol in advance. CONSTITUTION: Reference symbols are selected using most significant bit(MSB) of a...

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Hauptverfasser: SUNWOO, MYUNG HOON, KIM, PAN SOO, PARK, JANG WOONG, HAN, JAE HEE, CHANG, DAE IG
Format: Patent
Sprache:eng ; kor
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ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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creator SUNWOO, MYUNG HOON
KIM, PAN SOO
PARK, JANG WOONG
HAN, JAE HEE
CHANG, DAE IG
description PURPOSE: A soft-decision demapping method of a digital signal is provided to reduce comparison calculation operation, by selecting a spot positioned in constellation with only phase information of a symbol in advance. CONSTITUTION: Reference symbols are selected using most significant bit(MSB) of a received signal. The selected reference symbols are selected according to location probability of the received signal among total reference symbols on the constellation. The maximum value of the log likelihood ratio(LLR) is acquired for the selected reference symbols. The total reference symbols are phase-shifted.
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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
title SOFT-DECISION DEMAPPING METHOD FOR DIGITAL SIGNAL
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