HIERARCHICAL PREAMBLE CONSTRUCTIONS FOR OFDMA BASED ON COMPLEMENTARY SEQUENCES
A method of implementing OFDMA systems with enhanced preamble properties is presented. The transmit power is boosted during a preamble transmission, by utilizing preambles with a low Peak-to-Average Power Ratio (PAPR) property, as opposed to higher PAPR during the data portion of the transmission. F...
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Format | Patent |
Language | English French German |
Published |
14.05.2008
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Abstract | A method of implementing OFDMA systems with enhanced preamble properties is presented. The transmit power is boosted during a preamble transmission, by utilizing preambles with a low Peak-to-Average Power Ratio (PAPR) property, as opposed to higher PAPR during the data portion of the transmission. Further, sets of preambles satisfying good PAPR properties in OFDMA systems are presented. The preambles satisfy a low Peak-to-Average Power Ratio (PAPR) property for numerous subsets of the usable subcarrier set. A method for generating a hierarchical set of preambles for OFDMA communication systems is described. The method hinges on the good PAPR properties of Golay's complementary sequences, and on hierarchical construction methods of larger complementary sequences out of smaller ones. |
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AbstractList | A method of implementing OFDMA systems with enhanced preamble properties is presented. The transmit power is boosted during a preamble transmission, by utilizing preambles with a low Peak-to-Average Power Ratio (PAPR) property, as opposed to higher PAPR during the data portion of the transmission. Further, sets of preambles satisfying good PAPR properties in OFDMA systems are presented. The preambles satisfy a low Peak-to-Average Power Ratio (PAPR) property for numerous subsets of the usable subcarrier set. A method for generating a hierarchical set of preambles for OFDMA communication systems is described. The method hinges on the good PAPR properties of Golay's complementary sequences, and on hierarchical construction methods of larger complementary sequences out of smaller ones. |
Author | CHAYAT, NAFTALI KAITZ, TAL |
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DocumentTitleAlternate | CONSTRUCTIONS HIERARCHISEES DES PREAMBULES POUR DES ACCES OFDMA A BASE DE SEQUENCES COMPLEMENTAIRES HIERARCHISCHE PRÄAMBELKONSTRUKTIONEN FÜR OFDMA AUF DER BASIS KOMPLEMENTÄRER SEQUENZEN |
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Snippet | A method of implementing OFDMA systems with enhanced preamble properties is presented. The transmit power is boosted during a preamble transmission, by... |
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SubjectTerms | ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY MULTIPLEX COMMUNICATION TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION |
Title | HIERARCHICAL PREAMBLE CONSTRUCTIONS FOR OFDMA BASED ON COMPLEMENTARY SEQUENCES |
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