COOPERATIVE TRANSMISSION METHODS ROBUST TO FREQUENCY SELECTIVE FADING

PURPOSE: A cooperative transmission method strong against frequency selective fading is provided to obtain a cooperative diversity gain through asynchronous cooperative communication in a frequency selective fading channel. CONSTITUTION: A source node(S) transmits a generated OFDM(Orthogonal Frequen...

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Main Authors PARK, HUI MAN, LEE, YEON WOO, YOON, SEOK HO, LEE, SEONG RO, KANG, SEUNG GOO, CHONG, DA HAE, PARK, SUN
Format Patent
LanguageEnglish
Korean
Published 06.02.2013
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
MULTIPLEX COMMUNICATION
TRANSMISSION
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Summary:PURPOSE: A cooperative transmission method strong against frequency selective fading is provided to obtain a cooperative diversity gain through asynchronous cooperative communication in a frequency selective fading channel. CONSTITUTION: A source node(S) transmits a generated OFDM(Orthogonal Frequency Division Multiplexing) transmission symbol to relay nodes(R1,R2) respectively. Each relay node performs an amplification operation to the received symbol. A destination node(D) performs a cyclic prefix removal to the symbol received through each of the relay nodes. The destination node obtains an estimation value of combination symbols transmitted from the source node. The destination node demodulates actual data symbols through a recombination process by using the estimation value of the combination symbols.
Bibliography:Application Number: KR20110075962