A Novel Interference Alignment Scheme With a Full-Duplex MIMO Relay
Recently, interference alignment (IA) has attracted great attention due to its superior performance. However, to achieve IA, users have to bear heavy burdens, such as providing enough dimensions, acquiring global channel statement information and affording high computational complexity, which makes...
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| Veröffentlicht in: | IEEE communications letters 2015-10, Vol.19 (10), p.1798-1801 |
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| creator | Xuanheng Li Yi Sun Nan Zhao Yu, F. Richard Zhehui Xu |
| description | Recently, interference alignment (IA) has attracted great attention due to its superior performance. However, to achieve IA, users have to bear heavy burdens, such as providing enough dimensions, acquiring global channel statement information and affording high computational complexity, which makes IA difficult to apply in practical networks. Therefore, in this letter, we propose a centralized IA (CIA) scheme, where a relay is employed to off-load the burden of mobile users, i.e., interferences are aligned only by the relay. Furthermore, considering that the receivers still need to zero-force the aligned interference, another scheme called centralized zero-forcing (CZF) is proposed to further reduce the burden of the receivers. Closed-form solutions and feasibility conditions of both schemes are presented. Simulation results are presented to validate the effectiveness of the proposed schemes. |
| doi_str_mv | 10.1109/LCOMM.2015.2465381 |
| format | Article |
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Richard ; Zhehui Xu</creator><creatorcontrib>Xuanheng Li ; Yi Sun ; Nan Zhao ; Yu, F. Richard ; Zhehui Xu</creatorcontrib><description>Recently, interference alignment (IA) has attracted great attention due to its superior performance. However, to achieve IA, users have to bear heavy burdens, such as providing enough dimensions, acquiring global channel statement information and affording high computational complexity, which makes IA difficult to apply in practical networks. Therefore, in this letter, we propose a centralized IA (CIA) scheme, where a relay is employed to off-load the burden of mobile users, i.e., interferences are aligned only by the relay. Furthermore, considering that the receivers still need to zero-force the aligned interference, another scheme called centralized zero-forcing (CZF) is proposed to further reduce the burden of the receivers. Closed-form solutions and feasibility conditions of both schemes are presented. Simulation results are presented to validate the effectiveness of the proposed schemes.</description><identifier>ISSN: 1089-7798</identifier><identifier>EISSN: 1558-2558</identifier><identifier>DOI: 10.1109/LCOMM.2015.2465381</identifier><identifier>CODEN: ICLEF6</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Alignment ; Channels ; Exact solutions ; Interference ; Interference alignment ; Mathematical analysis ; MIMO ; Receivers ; Receiving antennas ; Relay ; Relays ; Transmitters ; zero-forcing</subject><ispartof>IEEE communications letters, 2015-10, Vol.19 (10), p.1798-1801</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) Oct 2015</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c328t-c9eae456e452bc5bfad0db96d137d223eda66fba1cd5167e7b64cca939f44433</citedby><cites>FETCH-LOGICAL-c328t-c9eae456e452bc5bfad0db96d137d223eda66fba1cd5167e7b64cca939f44433</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/7181682$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,776,780,792,27903,27904,54736</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/7181682$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Xuanheng Li</creatorcontrib><creatorcontrib>Yi Sun</creatorcontrib><creatorcontrib>Nan Zhao</creatorcontrib><creatorcontrib>Yu, F. 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Closed-form solutions and feasibility conditions of both schemes are presented. Simulation results are presented to validate the effectiveness of the proposed schemes.</description><subject>Alignment</subject><subject>Channels</subject><subject>Exact solutions</subject><subject>Interference</subject><subject>Interference alignment</subject><subject>Mathematical analysis</subject><subject>MIMO</subject><subject>Receivers</subject><subject>Receiving antennas</subject><subject>Relay</subject><subject>Relays</subject><subject>Transmitters</subject><subject>zero-forcing</subject><issn>1089-7798</issn><issn>1558-2558</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpdkMtKw0AUhoMoWKsvoJsBN25S55LMZVmi1UJjQQsuw2RyYlMmSc0kYt_eqS0uXJzL4vsPhy8IrgmeEILV_SJZpumEYhJPaMRjJslJMCJxLEPq26nfsVShEEqeBxfObTDGksZkFCRT9NJ-gUXzpoeuhA4aA2hqq4-mhqZHb2YNNaD3ql8jjWaDteHDsLXwjdJ5ukSvYPXuMjgrtXVwdZzjYDV7XCXP4WL5NE-mi9AwKvvQKNAQxdwXzU2cl7rARa54QZgoKGVQaM7LXBNTxIQLEDmPjNGKqTKKIsbGwd3h7LZrPwdwfVZXzoC1uoF2cBkRQuKIUUE8evsP3bRD1_jnPEUVFZwp5Sl6oEzXOtdBmW27qtbdLiM422vNfrVme63ZUasP3RxCFQD8BQSRhEvKfgAYIHI4</recordid><startdate>201510</startdate><enddate>201510</enddate><creator>Xuanheng Li</creator><creator>Yi Sun</creator><creator>Nan Zhao</creator><creator>Yu, F. Richard</creator><creator>Zhehui Xu</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>L7M</scope><scope>F28</scope><scope>FR3</scope></search><sort><creationdate>201510</creationdate><title>A Novel Interference Alignment Scheme With a Full-Duplex MIMO Relay</title><author>Xuanheng Li ; Yi Sun ; Nan Zhao ; Yu, F. 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Richard</au><au>Zhehui Xu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A Novel Interference Alignment Scheme With a Full-Duplex MIMO Relay</atitle><jtitle>IEEE communications letters</jtitle><stitle>COML</stitle><date>2015-10</date><risdate>2015</risdate><volume>19</volume><issue>10</issue><spage>1798</spage><epage>1801</epage><pages>1798-1801</pages><issn>1089-7798</issn><eissn>1558-2558</eissn><coden>ICLEF6</coden><abstract>Recently, interference alignment (IA) has attracted great attention due to its superior performance. However, to achieve IA, users have to bear heavy burdens, such as providing enough dimensions, acquiring global channel statement information and affording high computational complexity, which makes IA difficult to apply in practical networks. Therefore, in this letter, we propose a centralized IA (CIA) scheme, where a relay is employed to off-load the burden of mobile users, i.e., interferences are aligned only by the relay. Furthermore, considering that the receivers still need to zero-force the aligned interference, another scheme called centralized zero-forcing (CZF) is proposed to further reduce the burden of the receivers. Closed-form solutions and feasibility conditions of both schemes are presented. Simulation results are presented to validate the effectiveness of the proposed schemes.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/LCOMM.2015.2465381</doi><tpages>4</tpages></addata></record> |
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| source | IEEE Electronic Library (IEL) |
| subjects | Alignment Channels Exact solutions Interference Interference alignment Mathematical analysis MIMO Receivers Receiving antennas Relay Relays Transmitters zero-forcing |
| title | A Novel Interference Alignment Scheme With a Full-Duplex MIMO Relay |
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