Feedback Mechanisms for FDD Massive MIMO With D2D-Based Limited CSI Sharing
Channel state information (CSI) feedback is a challenging issue in frequency division duplexing (FDD) massive MIMO systems. This paper studies a cooperative feedback scheme, where the users first exchange their CSI with each other through device-to-device (D2D) communications, then compute the preco...
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| Veröffentlicht in: | IEEE transactions on wireless communications 2017-08, Vol.16 (8), p.5162-5175 |
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| container_title | IEEE transactions on wireless communications |
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| creator | Junting Chen Haifan Yin Cottatellucci, Laura Gesbert, David |
| description | Channel state information (CSI) feedback is a challenging issue in frequency division duplexing (FDD) massive MIMO systems. This paper studies a cooperative feedback scheme, where the users first exchange their CSI with each other through device-to-device (D2D) communications, then compute the precoder by themselves, and feedback the precoder to the base station (BS). Analytical results are derived to show that the cooperative precoder feedback is more efficient than the CSI feedback in terms of interference mitigation. To reduce the delays for CSI exchange, we develop an adaptive CSI exchange strategy based on signal subspace projection and optimal bit partition. Numerical results demonstrate that the proposed cooperative precoder feedback scheme with adaptive CSI exchange significantly outperforms the CSI feedback scheme, even under moderate delays for CSI exchange via D2D. |
| doi_str_mv | 10.1109/TWC.2017.2706279 |
| format | Article |
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Numerical results demonstrate that the proposed cooperative precoder feedback scheme with adaptive CSI exchange significantly outperforms the CSI feedback scheme, even under moderate delays for CSI exchange via D2D.</description><identifier>ISSN: 1536-1276</identifier><identifier>EISSN: 1558-2248</identifier><identifier>DOI: 10.1109/TWC.2017.2706279</identifier><identifier>CODEN: ITWCAX</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Delays ; device-to-device ; Device-to-device communication ; Downlink ; Exchanging ; Feedback ; Feeds ; Frequency division duplexing ; limited feedback ; Massive MIMO ; MIMO ; MIMO (control systems) ; precoder feedback ; Precoding ; subspace projection ; Wireless communication</subject><ispartof>IEEE transactions on wireless communications, 2017-08, Vol.16 (8), p.5162-5175</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2017</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c291t-15f14cafbaa644928816d5720e092d436d0401607b7ea7ea1242018de020efe53</citedby><cites>FETCH-LOGICAL-c291t-15f14cafbaa644928816d5720e092d436d0401607b7ea7ea1242018de020efe53</cites><orcidid>0000-0003-3056-9030</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/7933248$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>315,782,786,798,27933,27934,54767</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/7933248$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Junting Chen</creatorcontrib><creatorcontrib>Haifan Yin</creatorcontrib><creatorcontrib>Cottatellucci, Laura</creatorcontrib><creatorcontrib>Gesbert, David</creatorcontrib><title>Feedback Mechanisms for FDD Massive MIMO With D2D-Based Limited CSI Sharing</title><title>IEEE transactions on wireless communications</title><addtitle>TWC</addtitle><description>Channel state information (CSI) feedback is a challenging issue in frequency division duplexing (FDD) massive MIMO systems. This paper studies a cooperative feedback scheme, where the users first exchange their CSI with each other through device-to-device (D2D) communications, then compute the precoder by themselves, and feedback the precoder to the base station (BS). Analytical results are derived to show that the cooperative precoder feedback is more efficient than the CSI feedback in terms of interference mitigation. To reduce the delays for CSI exchange, we develop an adaptive CSI exchange strategy based on signal subspace projection and optimal bit partition. Numerical results demonstrate that the proposed cooperative precoder feedback scheme with adaptive CSI exchange significantly outperforms the CSI feedback scheme, even under moderate delays for CSI exchange via D2D.</description><subject>Delays</subject><subject>device-to-device</subject><subject>Device-to-device communication</subject><subject>Downlink</subject><subject>Exchanging</subject><subject>Feedback</subject><subject>Feeds</subject><subject>Frequency division duplexing</subject><subject>limited feedback</subject><subject>Massive MIMO</subject><subject>MIMO</subject><subject>MIMO (control systems)</subject><subject>precoder feedback</subject><subject>Precoding</subject><subject>subspace projection</subject><subject>Wireless communication</subject><issn>1536-1276</issn><issn>1558-2248</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kFFLwzAQgIMoOKfvgi8BnztzaZq0j9o6Ha7sYZM9hqy9uky3zqQT_PembAgHd3Df3XEfIbfARgAse1gs8xFnoEZcMclVdkYGkCRpxLlIz_s6lhFwJS_JlfcbFkiZJAPyNkasV6b6pCVWa7Ozfutp0zo6LgpaGu_tD9JyUs7o0nZrWvAiejIeazq1W9uFnM8ndL42zu4-rslFY7483pzykLyPnxf5azSdvUzyx2lU8Qy6CJIGRGWalTFSiIynKcg6UZwhy3gtYlkzwUAytVJoQgAX4bG0RhaQBpN4SO6Pe_eu_T6g7_SmPbhdOKmhX5dJLkWg2JGqXOu9w0bvnd0a96uB6V6ZDsp0r0yflIWRu-OIRcR_PDTiIDH-A9EAY7Y</recordid><startdate>201708</startdate><enddate>201708</enddate><creator>Junting Chen</creator><creator>Haifan Yin</creator><creator>Cottatellucci, Laura</creator><creator>Gesbert, David</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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This paper studies a cooperative feedback scheme, where the users first exchange their CSI with each other through device-to-device (D2D) communications, then compute the precoder by themselves, and feedback the precoder to the base station (BS). Analytical results are derived to show that the cooperative precoder feedback is more efficient than the CSI feedback in terms of interference mitigation. To reduce the delays for CSI exchange, we develop an adaptive CSI exchange strategy based on signal subspace projection and optimal bit partition. Numerical results demonstrate that the proposed cooperative precoder feedback scheme with adaptive CSI exchange significantly outperforms the CSI feedback scheme, even under moderate delays for CSI exchange via D2D.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TWC.2017.2706279</doi><tpages>14</tpages><orcidid>https://orcid.org/0000-0003-3056-9030</orcidid></addata></record> |
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| source | IEEE Electronic Library (IEL) |
| subjects | Delays device-to-device Device-to-device communication Downlink Exchanging Feedback Feeds Frequency division duplexing limited feedback Massive MIMO MIMO MIMO (control systems) precoder feedback Precoding subspace projection Wireless communication |
| title | Feedback Mechanisms for FDD Massive MIMO With D2D-Based Limited CSI Sharing |
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