Detection of Hierarchically-Modulated Data for Advanced T-DMB Receivers
This paper proposes an efficient detection method of hierarchically-modulated data for an advanced terrestrial digital multimedia broadcasting (AT-DMB) receiver. Hierarchical modulation, where low-priority (LP) symbols are hierarchically added to the existing high-priority (HP) symbols, has been con...
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| Veröffentlicht in: | IEEE transactions on consumer electronics 2008-02, Vol.54 (1), p.39-46 |
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| container_title | IEEE transactions on consumer electronics |
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| creator | Ji-Hyun Kim, Ji-Hyun Kim Wan-Jin Kim, Wan-Jin Kim Sangdoo Ha, Sangdoo Ha Hyoungsoo Lim, Hyoungsoo Lim Hyoung-Nam Kim, Hyoung-Nam Kim |
| description | This paper proposes an efficient detection method of hierarchically-modulated data for an advanced terrestrial digital multimedia broadcasting (AT-DMB) receiver. Hierarchical modulation, where low-priority (LP) symbols are hierarchically added to the existing high-priority (HP) symbols, has been considered to be useful for increasing the data rate in AT-DMB systems. The distance between two neighboring LP symbols is limited by the noise margin of HP symbols and thus should be shortened to minimize the effect on the detection of HP symbols. To cope with the poor condition of LP symbols, we introduce a coherent detection method based on coded decision-directed (CDD) channel estimation (CE). CDD-CE may provide an accurate estimation result even under the infrequent pilot arrangement of the T-DMB system. Additionally, we propose a moving average (MA) method in frequency direction to reduce noise existing in the estimated channel coefficients. Simulation results show that the proposed method can be a good solution to successfully detect LP data. |
| doi_str_mv | 10.1109/TCE.2008.4470021 |
| format | Article |
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Hierarchical modulation, where low-priority (LP) symbols are hierarchically added to the existing high-priority (HP) symbols, has been considered to be useful for increasing the data rate in AT-DMB systems. The distance between two neighboring LP symbols is limited by the noise margin of HP symbols and thus should be shortened to minimize the effect on the detection of HP symbols. To cope with the poor condition of LP symbols, we introduce a coherent detection method based on coded decision-directed (CDD) channel estimation (CE). CDD-CE may provide an accurate estimation result even under the infrequent pilot arrangement of the T-DMB system. Additionally, we propose a moving average (MA) method in frequency direction to reduce noise existing in the estimated channel coefficients. 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(IEEE) 2008</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c385t-b7f933790aef5021398a73449ec5025d0e43e1bb23a285c11ad1006d1c039f2b3</citedby><cites>FETCH-LOGICAL-c385t-b7f933790aef5021398a73449ec5025d0e43e1bb23a285c11ad1006d1c039f2b3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/4470021$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,780,784,796,27923,27924,54757</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/4470021$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Ji-Hyun Kim, Ji-Hyun Kim</creatorcontrib><creatorcontrib>Wan-Jin Kim, Wan-Jin Kim</creatorcontrib><creatorcontrib>Sangdoo Ha, Sangdoo Ha</creatorcontrib><creatorcontrib>Hyoungsoo Lim, Hyoungsoo Lim</creatorcontrib><creatorcontrib>Hyoung-Nam Kim, Hyoung-Nam Kim</creatorcontrib><title>Detection of Hierarchically-Modulated Data for Advanced T-DMB Receivers</title><title>IEEE transactions on consumer electronics</title><addtitle>T-CE</addtitle><description>This paper proposes an efficient detection method of hierarchically-modulated data for an advanced terrestrial digital multimedia broadcasting (AT-DMB) receiver. Hierarchical modulation, where low-priority (LP) symbols are hierarchically added to the existing high-priority (HP) symbols, has been considered to be useful for increasing the data rate in AT-DMB systems. The distance between two neighboring LP symbols is limited by the noise margin of HP symbols and thus should be shortened to minimize the effect on the detection of HP symbols. To cope with the poor condition of LP symbols, we introduce a coherent detection method based on coded decision-directed (CDD) channel estimation (CE). CDD-CE may provide an accurate estimation result even under the infrequent pilot arrangement of the T-DMB system. Additionally, we propose a moving average (MA) method in frequency direction to reduce noise existing in the estimated channel coefficients. Simulation results show that the proposed method can be a good solution to successfully detect LP data.</description><subject>Channel estimation</subject><subject>Channels</subject><subject>Code standards</subject><subject>Differential quadrature phase shift keying</subject><subject>Digital audio broadcasting</subject><subject>Digital multimedia broadcasting</subject><subject>Electronics</subject><subject>Frequency estimation</subject><subject>Liquid crystal displays</subject><subject>Modulation</subject><subject>Multimedia</subject><subject>Noise</subject><subject>Noise reduction</subject><subject>OFDM modulation</subject><subject>Pilots</subject><subject>Receivers</subject><subject>Symbols</subject><issn>0098-3063</issn><issn>1558-4127</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNqFkc1LAzEQxYMoWKt3wcviQU9bJ19Ncqxt_YAWQeo5pNlZ3LJ2a7It9L83pdWDBz0NM_N7wxseIZcUepSCuZsNxz0GoHtCKABGj0iHSqlzQZk6Jh0Ao3MOfX5KzmJcAFAhme6QxxG26NuqWWZNmT1VGFzw75V3db3Np02xrl2LRTZyrcvKJmSDYuOWPk1m-Wh6n72ix2qDIZ6Tk9LVES8OtUveHsaz4VM-eXl8Hg4muedatvlclYZzZcBhKZNLbrRTXAiDPrWyABQc6XzOuGNaekpdQQH6BfXATcnmvEtu93dXoflcY2ztRxU91rVbYrOO1gDvU2mU-pfUSoJgRtFE3vxJJn-gJZMJvP4FLpp1WKZ_re4zkc5JnSDYQz40MQYs7SpUHy5sLQW7i8qmqOwuKnuIKkmu9pIKEX_w7-0XLxaL2A</recordid><startdate>20080201</startdate><enddate>20080201</enddate><creator>Ji-Hyun Kim, Ji-Hyun Kim</creator><creator>Wan-Jin Kim, Wan-Jin Kim</creator><creator>Sangdoo Ha, Sangdoo Ha</creator><creator>Hyoungsoo Lim, Hyoungsoo Lim</creator><creator>Hyoung-Nam Kim, Hyoung-Nam Kim</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</general><scope>97E</scope><scope>RIA</scope><scope>RIE</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>L7M</scope></search><sort><creationdate>20080201</creationdate><title>Detection of Hierarchically-Modulated Data for Advanced T-DMB Receivers</title><author>Ji-Hyun Kim, Ji-Hyun Kim ; Wan-Jin Kim, Wan-Jin Kim ; Sangdoo Ha, Sangdoo Ha ; Hyoungsoo Lim, Hyoungsoo Lim ; Hyoung-Nam Kim, Hyoung-Nam Kim</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c385t-b7f933790aef5021398a73449ec5025d0e43e1bb23a285c11ad1006d1c039f2b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Channel estimation</topic><topic>Channels</topic><topic>Code standards</topic><topic>Differential quadrature phase shift keying</topic><topic>Digital audio broadcasting</topic><topic>Digital multimedia broadcasting</topic><topic>Electronics</topic><topic>Frequency estimation</topic><topic>Liquid crystal displays</topic><topic>Modulation</topic><topic>Multimedia</topic><topic>Noise</topic><topic>Noise reduction</topic><topic>OFDM modulation</topic><topic>Pilots</topic><topic>Receivers</topic><topic>Symbols</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ji-Hyun Kim, Ji-Hyun Kim</creatorcontrib><creatorcontrib>Wan-Jin Kim, Wan-Jin Kim</creatorcontrib><creatorcontrib>Sangdoo Ha, Sangdoo Ha</creatorcontrib><creatorcontrib>Hyoungsoo Lim, Hyoungsoo Lim</creatorcontrib><creatorcontrib>Hyoung-Nam Kim, Hyoung-Nam Kim</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library (IEL)</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>IEEE transactions on consumer electronics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Ji-Hyun Kim, Ji-Hyun Kim</au><au>Wan-Jin Kim, Wan-Jin Kim</au><au>Sangdoo Ha, Sangdoo Ha</au><au>Hyoungsoo Lim, Hyoungsoo Lim</au><au>Hyoung-Nam Kim, Hyoung-Nam Kim</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Detection of Hierarchically-Modulated Data for Advanced T-DMB Receivers</atitle><jtitle>IEEE transactions on consumer electronics</jtitle><stitle>T-CE</stitle><date>2008-02-01</date><risdate>2008</risdate><volume>54</volume><issue>1</issue><spage>39</spage><epage>46</epage><pages>39-46</pages><issn>0098-3063</issn><eissn>1558-4127</eissn><coden>ITCEDA</coden><abstract>This paper proposes an efficient detection method of hierarchically-modulated data for an advanced terrestrial digital multimedia broadcasting (AT-DMB) receiver. Hierarchical modulation, where low-priority (LP) symbols are hierarchically added to the existing high-priority (HP) symbols, has been considered to be useful for increasing the data rate in AT-DMB systems. The distance between two neighboring LP symbols is limited by the noise margin of HP symbols and thus should be shortened to minimize the effect on the detection of HP symbols. To cope with the poor condition of LP symbols, we introduce a coherent detection method based on coded decision-directed (CDD) channel estimation (CE). CDD-CE may provide an accurate estimation result even under the infrequent pilot arrangement of the T-DMB system. Additionally, we propose a moving average (MA) method in frequency direction to reduce noise existing in the estimated channel coefficients. 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| source | IEEE Electronic Library (IEL) |
| subjects | Channel estimation Channels Code standards Differential quadrature phase shift keying Digital audio broadcasting Digital multimedia broadcasting Electronics Frequency estimation Liquid crystal displays Modulation Multimedia Noise Noise reduction OFDM modulation Pilots Receivers Symbols |
| title | Detection of Hierarchically-Modulated Data for Advanced T-DMB Receivers |
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