Adaptive multicarrier system with reduced feedback information in wideband radio channels
OFDM (orthogonal frequency division multiplexing) is considered as a physical layer modulation scheme in wireless ATM/LAN standards. Generally, adaptive modulation requires precise channel estimation and channel state information feedback. In a wireless channel, a large portion of the total transmit...
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| container_end_page | 2884 vol.5 |
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| creator | Hyunsoo Cheon Byungjoon Park Daesik Hong |
| description | OFDM (orthogonal frequency division multiplexing) is considered as a physical layer modulation scheme in wireless ATM/LAN standards. Generally, adaptive modulation requires precise channel estimation and channel state information feedback. In a wireless channel, a large portion of the total transmitting information is occupied by the feedback information due to the frequent adaptation to time-varying channel attenuation. In this paper, we propose an adaptive multicarrier system which adopts reduced feedback information for wireless application. This scheme is based on the general bit loading pouring algorithm, and suggests that the channel state information can be unified to the fractional number of loaded bits and it can be fed back differentially. In addition, we apply a linear predictor to reduce the degradation during the feedback interval. |
| doi_str_mv | 10.1109/VETECF.1999.800313 |
| format | Conference Proceeding |
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Generally, adaptive modulation requires precise channel estimation and channel state information feedback. In a wireless channel, a large portion of the total transmitting information is occupied by the feedback information due to the frequent adaptation to time-varying channel attenuation. In this paper, we propose an adaptive multicarrier system which adopts reduced feedback information for wireless application. This scheme is based on the general bit loading pouring algorithm, and suggests that the channel state information can be unified to the fractional number of loaded bits and it can be fed back differentially. In addition, we apply a linear predictor to reduce the degradation during the feedback interval.</description><identifier>ISSN: 1090-3038</identifier><identifier>ISBN: 9780780354357</identifier><identifier>ISBN: 0780354354</identifier><identifier>EISSN: 2577-2465</identifier><identifier>DOI: 10.1109/VETECF.1999.800313</identifier><language>eng</language><publisher>IEEE</publisher><subject>Adaptive systems ; Asynchronous transfer mode ; Channel estimation ; Channel state information ; Local area networks ; OFDM modulation ; Physical layer ; State feedback ; Time-varying channels ; Wireless LAN</subject><ispartof>Gateway to 21st Century Communications Village. VTC 1999-Fall. IEEE VTS 50th Vehicular Technology Conference (Cat. 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No.99CH36324)</title><addtitle>VETECF</addtitle><description>OFDM (orthogonal frequency division multiplexing) is considered as a physical layer modulation scheme in wireless ATM/LAN standards. Generally, adaptive modulation requires precise channel estimation and channel state information feedback. In a wireless channel, a large portion of the total transmitting information is occupied by the feedback information due to the frequent adaptation to time-varying channel attenuation. In this paper, we propose an adaptive multicarrier system which adopts reduced feedback information for wireless application. This scheme is based on the general bit loading pouring algorithm, and suggests that the channel state information can be unified to the fractional number of loaded bits and it can be fed back differentially. In addition, we apply a linear predictor to reduce the degradation during the feedback interval.</description><subject>Adaptive systems</subject><subject>Asynchronous transfer mode</subject><subject>Channel estimation</subject><subject>Channel state information</subject><subject>Local area networks</subject><subject>OFDM modulation</subject><subject>Physical layer</subject><subject>State feedback</subject><subject>Time-varying channels</subject><subject>Wireless LAN</subject><issn>1090-3038</issn><issn>2577-2465</issn><isbn>9780780354357</isbn><isbn>0780354354</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>1999</creationdate><recordtype>conference_proceeding</recordtype><sourceid>6IE</sourceid><sourceid>RIE</sourceid><recordid>eNp9js1qwzAQhJf-QN02L5CTXsDuyopj61iCQx8gBHoKG2tNtrXlICktefsa2nNhYAa-GRiApcZCa7Qv-3bXbraFttYWDaLR5gaysqrrvFytq1tY2LrBWaZamaq-g2weYW7QNA_wGOMHImq9LjN4f3V0TvLFarwMSToKQTioeI2JR_Ut6aQCu0vHTvXM7kjdpxLfT2GkJJOf81xyfCTvVCAnk-pO5D0P8RnuexoiL_78CZbbdrd5y4WZD-cgI4Xr4fe8-Rf-ACjDRno</recordid><startdate>1999</startdate><enddate>1999</enddate><creator>Hyunsoo Cheon</creator><creator>Byungjoon Park</creator><creator>Daesik Hong</creator><general>IEEE</general><scope>6IE</scope><scope>6IH</scope><scope>CBEJK</scope><scope>RIE</scope><scope>RIO</scope></search><sort><creationdate>1999</creationdate><title>Adaptive multicarrier system with reduced feedback information in wideband radio channels</title><author>Hyunsoo Cheon ; Byungjoon Park ; Daesik Hong</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-ieee_primary_8003133</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>1999</creationdate><topic>Adaptive systems</topic><topic>Asynchronous transfer mode</topic><topic>Channel estimation</topic><topic>Channel state information</topic><topic>Local area networks</topic><topic>OFDM modulation</topic><topic>Physical layer</topic><topic>State feedback</topic><topic>Time-varying channels</topic><topic>Wireless LAN</topic><toplevel>online_resources</toplevel><creatorcontrib>Hyunsoo Cheon</creatorcontrib><creatorcontrib>Byungjoon Park</creatorcontrib><creatorcontrib>Daesik Hong</creatorcontrib><collection>IEEE Electronic Library (IEL) Conference Proceedings</collection><collection>IEEE Proceedings Order Plan (POP) 1998-present by volume</collection><collection>IEEE Xplore All Conference Proceedings</collection><collection>IEEE Electronic Library (IEL)</collection><collection>IEEE Proceedings Order Plans (POP) 1998-present</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Hyunsoo Cheon</au><au>Byungjoon Park</au><au>Daesik Hong</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Adaptive multicarrier system with reduced feedback information in wideband radio channels</atitle><btitle>Gateway to 21st Century Communications Village. VTC 1999-Fall. IEEE VTS 50th Vehicular Technology Conference (Cat. No.99CH36324)</btitle><stitle>VETECF</stitle><date>1999</date><risdate>1999</risdate><volume>5</volume><spage>2880</spage><epage>2884 vol.5</epage><pages>2880-2884 vol.5</pages><issn>1090-3038</issn><eissn>2577-2465</eissn><isbn>9780780354357</isbn><isbn>0780354354</isbn><abstract>OFDM (orthogonal frequency division multiplexing) is considered as a physical layer modulation scheme in wireless ATM/LAN standards. Generally, adaptive modulation requires precise channel estimation and channel state information feedback. In a wireless channel, a large portion of the total transmitting information is occupied by the feedback information due to the frequent adaptation to time-varying channel attenuation. In this paper, we propose an adaptive multicarrier system which adopts reduced feedback information for wireless application. This scheme is based on the general bit loading pouring algorithm, and suggests that the channel state information can be unified to the fractional number of loaded bits and it can be fed back differentially. In addition, we apply a linear predictor to reduce the degradation during the feedback interval.</abstract><pub>IEEE</pub><doi>10.1109/VETECF.1999.800313</doi></addata></record> |
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| identifier | ISSN: 1090-3038 |
| ispartof | Gateway to 21st Century Communications Village. VTC 1999-Fall. IEEE VTS 50th Vehicular Technology Conference (Cat. No.99CH36324), 1999, Vol.5, p.2880-2884 vol.5 |
| issn | 1090-3038 2577-2465 |
| language | eng |
| recordid | cdi_ieee_primary_800313 |
| source | IEEE Electronic Library (IEL) Conference Proceedings |
| subjects | Adaptive systems Asynchronous transfer mode Channel estimation Channel state information Local area networks OFDM modulation Physical layer State feedback Time-varying channels Wireless LAN |
| title | Adaptive multicarrier system with reduced feedback information in wideband radio channels |
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