Joint Multiuser Precoding and Scheduling with Imperfect Channel State Information at the Transmitter
This paper addresses the joint design of multiuser precoding and scheduling for downlink multiuser (MU-) multiple-input-multiple-output (MIMO) systems with imperfect channel state information at the transmitter (CSIT). The major issue is to control the increased co-channel-interference (CCI) caused...
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| creator | Keying Wu Lei Wang Liyu Cai |
| description | This paper addresses the joint design of multiuser precoding and scheduling for downlink multiuser (MU-) multiple-input-multiple-output (MIMO) systems with imperfect channel state information at the transmitter (CSIT). The major issue is to control the increased co-channel-interference (CCI) caused by CSIT error among users sharing the same time-frequency resource. We propose an advanced joint multiuser precoding and scheduling technique, which uses the statistical information of the CSIT error to predict the relationship among CCI, precoding matrixes and scheduling results, and utilizes such information to improve the precoding and scheduling algorithms for better CCI control. Simulation results have shown that considerable capacity improvement can be achieved by the proposed technique in the case of imperfect CSIT. |
| doi_str_mv | 10.1109/VETECS.2008.67 |
| format | Conference Proceeding |
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The major issue is to control the increased co-channel-interference (CCI) caused by CSIT error among users sharing the same time-frequency resource. We propose an advanced joint multiuser precoding and scheduling technique, which uses the statistical information of the CSIT error to predict the relationship among CCI, precoding matrixes and scheduling results, and utilizes such information to improve the precoding and scheduling algorithms for better CCI control. 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The major issue is to control the increased co-channel-interference (CCI) caused by CSIT error among users sharing the same time-frequency resource. We propose an advanced joint multiuser precoding and scheduling technique, which uses the statistical information of the CSIT error to predict the relationship among CCI, precoding matrixes and scheduling results, and utilizes such information to improve the precoding and scheduling algorithms for better CCI control. Simulation results have shown that considerable capacity improvement can be achieved by the proposed technique in the case of imperfect CSIT.</description><subject>Channel state information</subject><subject>Downlink</subject><subject>Error correction</subject><subject>MIMO</subject><subject>Mobile antennas</subject><subject>Radiofrequency interference</subject><subject>Receiving antennas</subject><subject>Scheduling algorithm</subject><subject>Transmitters</subject><subject>Transmitting antennas</subject><issn>1550-2252</issn><isbn>1424416442</isbn><isbn>9781424416448</isbn><isbn>1424416450</isbn><isbn>9781424416455</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2008</creationdate><recordtype>conference_proceeding</recordtype><sourceid>6IE</sourceid><sourceid>RIE</sourceid><recordid>eNpFj81Kw0AURkdUsK1u3biZF0i9c-cnzVJCrZWKQqvbMs3cmJFkUiZTxLe3ouDqcL7FgY-xawFTIaC4fZtv5uV6igCzqclP2FgoVEoYpeH0XxSesZHQGjJEjRdsPAwfACoHiSPmHnsfEn86tMkfBor8JVLVOx_euQ2Or6uG3KH90U-fGr7s9hRrqhIvGxsCtXydbCK-DHUfO5t8H7hNPDXEN9GGofMpUbxk57VtB7r644S93s835UO2el4sy7tV5kWuUyat2Amwrq6xKgogDVigAsrJ4MwqFFLvjos-Qh4_q10twAmYIWmTO2PkhN38dj0RbffRdzZ-bZVGbVDKbxYlVqw</recordid><startdate>200805</startdate><enddate>200805</enddate><creator>Keying Wu</creator><creator>Lei Wang</creator><creator>Liyu Cai</creator><general>IEEE</general><scope>6IE</scope><scope>6IH</scope><scope>CBEJK</scope><scope>RIE</scope><scope>RIO</scope></search><sort><creationdate>200805</creationdate><title>Joint Multiuser Precoding and Scheduling with Imperfect Channel State Information at the Transmitter</title><author>Keying Wu ; Lei Wang ; Liyu Cai</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i175t-3a1b10adff2c990e5029240e7e628a42135b292535b32004bf10d1082e567d663</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Channel state information</topic><topic>Downlink</topic><topic>Error correction</topic><topic>MIMO</topic><topic>Mobile antennas</topic><topic>Radiofrequency interference</topic><topic>Receiving antennas</topic><topic>Scheduling algorithm</topic><topic>Transmitters</topic><topic>Transmitting antennas</topic><toplevel>online_resources</toplevel><creatorcontrib>Keying Wu</creatorcontrib><creatorcontrib>Lei Wang</creatorcontrib><creatorcontrib>Liyu Cai</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>Keying Wu</au><au>Lei Wang</au><au>Liyu Cai</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Joint Multiuser Precoding and Scheduling with Imperfect Channel State Information at the Transmitter</atitle><btitle>VTC Spring 2008 - IEEE Vehicular Technology Conference</btitle><stitle>VETECS</stitle><date>2008-05</date><risdate>2008</risdate><spage>265</spage><epage>269</epage><pages>265-269</pages><issn>1550-2252</issn><isbn>1424416442</isbn><isbn>9781424416448</isbn><eisbn>1424416450</eisbn><eisbn>9781424416455</eisbn><abstract>This paper addresses the joint design of multiuser precoding and scheduling for downlink multiuser (MU-) multiple-input-multiple-output (MIMO) systems with imperfect channel state information at the transmitter (CSIT). The major issue is to control the increased co-channel-interference (CCI) caused by CSIT error among users sharing the same time-frequency resource. We propose an advanced joint multiuser precoding and scheduling technique, which uses the statistical information of the CSIT error to predict the relationship among CCI, precoding matrixes and scheduling results, and utilizes such information to improve the precoding and scheduling algorithms for better CCI control. Simulation results have shown that considerable capacity improvement can be achieved by the proposed technique in the case of imperfect CSIT.</abstract><pub>IEEE</pub><doi>10.1109/VETECS.2008.67</doi><tpages>5</tpages></addata></record> |
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| ispartof | VTC Spring 2008 - IEEE Vehicular Technology Conference, 2008, p.265-269 |
| issn | 1550-2252 |
| language | eng |
| recordid | cdi_ieee_primary_4525623 |
| source | IEEE Electronic Library (IEL) Conference Proceedings |
| subjects | Channel state information Downlink Error correction MIMO Mobile antennas Radiofrequency interference Receiving antennas Scheduling algorithm Transmitters Transmitting antennas |
| title | Joint Multiuser Precoding and Scheduling with Imperfect Channel State Information at the Transmitter |
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