High Resolution Carrier Frequency Offset Estimation in Time-Reversal Wideband Communications
Time-reversal (TR) wideband communication systems enjoy the spatial-temporal focusing effect in a rich-scattering environment. However, the performance degrades in the presence of carrier frequency offset (CFO). The impact of CFO can be mitigated by compensating the estimated CFO values obtained usi...
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| Veröffentlicht in: | IEEE transactions on communications 2018-05, Vol.66 (5), p.2191-2205 |
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| container_title | IEEE transactions on communications |
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| creator | Chen Chen Yan Chen Yi Han Hung-Quoc Lai Liu, K. J. Ray |
| description | Time-reversal (TR) wideband communication systems enjoy the spatial-temporal focusing effect in a rich-scattering environment. However, the performance degrades in the presence of carrier frequency offset (CFO). The impact of CFO can be mitigated by compensating the estimated CFO values obtained using CFO estimators. Yet, CFO estimators in literature cannot work well in wideband TR systems due to the fact that the normalized CFO values are very small and thus cannot be estimated accurately using conventional schemes. To address this issue, we propose four CFO estimators which are capable of accurate CFO estimations for wideband TR systems. The theoretical performances of the proposed estimators are analyzed. Additionally, realizing that phase wrapping might introduce severe bias into CFO estimations, we present the conditions on the system parameters so that phase wrapping can be avoided. Extensive simulations and experimental results demonstrate the superiority of the proposed methods. |
| doi_str_mv | 10.1109/TCOMM.2017.2751609 |
| format | Article |
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J. Ray</creator><creatorcontrib>Chen Chen ; Yan Chen ; Yi Han ; Hung-Quoc Lai ; Liu, K. J. Ray</creatorcontrib><description>Time-reversal (TR) wideband communication systems enjoy the spatial-temporal focusing effect in a rich-scattering environment. However, the performance degrades in the presence of carrier frequency offset (CFO). The impact of CFO can be mitigated by compensating the estimated CFO values obtained using CFO estimators. Yet, CFO estimators in literature cannot work well in wideband TR systems due to the fact that the normalized CFO values are very small and thus cannot be estimated accurately using conventional schemes. To address this issue, we propose four CFO estimators which are capable of accurate CFO estimations for wideband TR systems. The theoretical performances of the proposed estimators are analyzed. Additionally, realizing that phase wrapping might introduce severe bias into CFO estimations, we present the conditions on the system parameters so that phase wrapping can be avoided. Extensive simulations and experimental results demonstrate the superiority of the proposed methods.</description><identifier>ISSN: 0090-6778</identifier><identifier>EISSN: 1558-0857</identifier><identifier>DOI: 10.1109/TCOMM.2017.2751609</identifier><identifier>CODEN: IECMBT</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Broadband ; Carrier frequencies ; carrier frequency offset ; Estimation ; Estimators ; Focusing ; OFDM ; Performance degradation ; phase wrapping ; Receivers ; time-reversal focusing effect ; Time-reversal wideband communication ; Timing ; Wideband ; Wideband communications ; Wireless communication</subject><ispartof>IEEE transactions on communications, 2018-05, Vol.66 (5), p.2191-2205</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. 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J. Ray</creatorcontrib><title>High Resolution Carrier Frequency Offset Estimation in Time-Reversal Wideband Communications</title><title>IEEE transactions on communications</title><addtitle>TCOMM</addtitle><description>Time-reversal (TR) wideband communication systems enjoy the spatial-temporal focusing effect in a rich-scattering environment. However, the performance degrades in the presence of carrier frequency offset (CFO). The impact of CFO can be mitigated by compensating the estimated CFO values obtained using CFO estimators. Yet, CFO estimators in literature cannot work well in wideband TR systems due to the fact that the normalized CFO values are very small and thus cannot be estimated accurately using conventional schemes. To address this issue, we propose four CFO estimators which are capable of accurate CFO estimations for wideband TR systems. The theoretical performances of the proposed estimators are analyzed. Additionally, realizing that phase wrapping might introduce severe bias into CFO estimations, we present the conditions on the system parameters so that phase wrapping can be avoided. Extensive simulations and experimental results demonstrate the superiority of the proposed methods.</description><subject>Broadband</subject><subject>Carrier frequencies</subject><subject>carrier frequency offset</subject><subject>Estimation</subject><subject>Estimators</subject><subject>Focusing</subject><subject>OFDM</subject><subject>Performance degradation</subject><subject>phase wrapping</subject><subject>Receivers</subject><subject>time-reversal focusing effect</subject><subject>Time-reversal wideband communication</subject><subject>Timing</subject><subject>Wideband</subject><subject>Wideband communications</subject><subject>Wireless communication</subject><issn>0090-6778</issn><issn>1558-0857</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kE1LAzEQhoMoWKt_QC8Bz1vzsdkkR1laK7QUSsWLELLpRFO6uzXZCv33blvxNJfnnZn3QeiekhGlRD-tysV8PmKEyhGTghZEX6ABFUJlRAl5iQaEaJIVUqprdJPShhCSE84H6GMaPr_wElK73XehbXBpYwwQ8STC9x4ad8AL7xN0eJy6UNsTExq8CjVkS_iBmOwWv4c1VLZZ47Kt630T3IlLt-jK222Cu785RG-T8aqcZrPFy2v5PMsc06LLnMy1ZLqqvHLOc-u0p0T1JRwICxqsr5jy3nFn-3JCaVpJtuZeyKoSlFI-RI_nvbvY9k-nzmzafWz6k4ZRmeeaKpX3FDtTLrYpRfBmF_tG8WAoMUeL5mTRHC2aP4t96OEcCgDwH1CEF0wV_Bfa2W-k</recordid><startdate>20180501</startdate><enddate>20180501</enddate><creator>Chen Chen</creator><creator>Yan Chen</creator><creator>Yi Han</creator><creator>Hung-Quoc Lai</creator><creator>Liu, K. J. Ray</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><orcidid>https://orcid.org/0000-0002-3227-4562</orcidid><orcidid>https://orcid.org/0000-0001-5469-5811</orcidid><orcidid>https://orcid.org/0000-0002-4064-3495</orcidid></search><sort><creationdate>20180501</creationdate><title>High Resolution Carrier Frequency Offset Estimation in Time-Reversal Wideband Communications</title><author>Chen Chen ; Yan Chen ; Yi Han ; Hung-Quoc Lai ; Liu, K. J. Ray</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c295t-c749729bbf8ccf3ac9f108160ce5ae9eafb28ffc3ca2755891b72d3f57bb51113</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Broadband</topic><topic>Carrier frequencies</topic><topic>carrier frequency offset</topic><topic>Estimation</topic><topic>Estimators</topic><topic>Focusing</topic><topic>OFDM</topic><topic>Performance degradation</topic><topic>phase wrapping</topic><topic>Receivers</topic><topic>time-reversal focusing effect</topic><topic>Time-reversal wideband communication</topic><topic>Timing</topic><topic>Wideband</topic><topic>Wideband communications</topic><topic>Wireless communication</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chen Chen</creatorcontrib><creatorcontrib>Yan Chen</creatorcontrib><creatorcontrib>Yi Han</creatorcontrib><creatorcontrib>Hung-Quoc Lai</creatorcontrib><creatorcontrib>Liu, K. J. Ray</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>Advanced Technologies Database with Aerospace</collection><jtitle>IEEE transactions on communications</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Chen Chen</au><au>Yan Chen</au><au>Yi Han</au><au>Hung-Quoc Lai</au><au>Liu, K. J. Ray</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>High Resolution Carrier Frequency Offset Estimation in Time-Reversal Wideband Communications</atitle><jtitle>IEEE transactions on communications</jtitle><stitle>TCOMM</stitle><date>2018-05-01</date><risdate>2018</risdate><volume>66</volume><issue>5</issue><spage>2191</spage><epage>2205</epage><pages>2191-2205</pages><issn>0090-6778</issn><eissn>1558-0857</eissn><coden>IECMBT</coden><abstract>Time-reversal (TR) wideband communication systems enjoy the spatial-temporal focusing effect in a rich-scattering environment. However, the performance degrades in the presence of carrier frequency offset (CFO). The impact of CFO can be mitigated by compensating the estimated CFO values obtained using CFO estimators. Yet, CFO estimators in literature cannot work well in wideband TR systems due to the fact that the normalized CFO values are very small and thus cannot be estimated accurately using conventional schemes. To address this issue, we propose four CFO estimators which are capable of accurate CFO estimations for wideband TR systems. The theoretical performances of the proposed estimators are analyzed. Additionally, realizing that phase wrapping might introduce severe bias into CFO estimations, we present the conditions on the system parameters so that phase wrapping can be avoided. Extensive simulations and experimental results demonstrate the superiority of the proposed methods.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TCOMM.2017.2751609</doi><tpages>15</tpages><orcidid>https://orcid.org/0000-0002-3227-4562</orcidid><orcidid>https://orcid.org/0000-0001-5469-5811</orcidid><orcidid>https://orcid.org/0000-0002-4064-3495</orcidid></addata></record> |
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| source | IEEE Electronic Library (IEL) |
| subjects | Broadband Carrier frequencies carrier frequency offset Estimation Estimators Focusing OFDM Performance degradation phase wrapping Receivers time-reversal focusing effect Time-reversal wideband communication Timing Wideband Wideband communications Wireless communication |
| title | High Resolution Carrier Frequency Offset Estimation in Time-Reversal Wideband Communications |
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