A novel timing synchronization for CO-OFDM systems using CAZAC sequences
A novel symbol timing synchronization algorithm based on constant amplitude zero auto correlation（CAZAC） sequences is proposed for coherent optical orthogonal frequency division multiplexing（CO-OFDM） systems. The training symbol of the proposed algorithm is comprised of four different parts, utilizi...
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| Veröffentlicht in: | Optoelectronics letters 2017-05, Vol.13 (3), p.225-228 |
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| container_title | Optoelectronics letters |
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| creator | 李莉 姚望 韩力 胡贵军 |
| description | A novel symbol timing synchronization algorithm based on constant amplitude zero auto correlation（CAZAC） sequences is proposed for coherent optical orthogonal frequency division multiplexing（CO-OFDM） systems. The training symbol of the proposed algorithm is comprised of four different parts, utilizing even symmetry property of each part to accomplish timing synchronization. The performance of the proposed algorithm is demonstrated by means of simulations in OFDM and CO-OFDM systems. The proposed algorithm is shown to eliminate the timing sidelobes of Park＇s algorithm and has a more accurate timing estimation. In the condition of chromatic dispersion（CD）, the timing metric of the proposed method still maintains its peak value at the correct timing point, while the values are almost 0 at all the other positions. Meanwhile, the timing mean square error（MSE） of the proposed algorithm remains around 10^-6. |
| doi_str_mv | 10.1007/s11801-017-7017-6 |
| format | Article |
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The training symbol of the proposed algorithm is comprised of four different parts, utilizing even symmetry property of each part to accomplish timing synchronization. The performance of the proposed algorithm is demonstrated by means of simulations in OFDM and CO-OFDM systems. The proposed algorithm is shown to eliminate the timing sidelobes of Park＇s algorithm and has a more accurate timing estimation. In the condition of chromatic dispersion（CD）, the timing metric of the proposed method still maintains its peak value at the correct timing point, while the values are almost 0 at all the other positions. Meanwhile, the timing mean square error（MSE） of the proposed algorithm remains around 10^-6.</description><identifier>ISSN: 1673-1905</identifier><identifier>EISSN: 1993-5013</identifier><identifier>DOI: 10.1007/s11801-017-7017-6</identifier><language>eng</language><publisher>Tianjin: Tianjin University of Technology</publisher><subject>Algorithms ; Bandwidths ; Computer simulation ; Lasers ; Optical Devices ; Optics ; Orthogonal Frequency Division Multiplexing ; Photonics ; Physics ; Physics and Astronomy ; Sidelobes ; Synchronism ; Time measurement</subject><ispartof>Optoelectronics letters, 2017-05, Vol.13 (3), p.225-228</ispartof><rights>Tianjin University of Technology and Springer-Verlag Berlin Heidelberg 2017</rights><rights>Copyright Springer Science & Business Media 2017</rights><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c343t-6a59b566509793e41bed47a8cbebd27cd37cf480a66fba5592aace365e640c523</citedby><cites>FETCH-LOGICAL-c343t-6a59b566509793e41bed47a8cbebd27cd37cf480a66fba5592aace365e640c523</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://image.cqvip.com/vip1000/qk/88368X/88368X.jpg</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s11801-017-7017-6$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11801-017-7017-6$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>李莉 姚望 韩力 胡贵军</creatorcontrib><title>A novel timing synchronization for CO-OFDM systems using CAZAC sequences</title><title>Optoelectronics letters</title><addtitle>Optoelectron. 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Meanwhile, the timing mean square error（MSE） of the proposed algorithm remains around 10^-6.</description><subject>Algorithms</subject><subject>Bandwidths</subject><subject>Computer simulation</subject><subject>Lasers</subject><subject>Optical Devices</subject><subject>Optics</subject><subject>Orthogonal Frequency Division Multiplexing</subject><subject>Photonics</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Sidelobes</subject><subject>Synchronism</subject><subject>Time measurement</subject><issn>1673-1905</issn><issn>1993-5013</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNp9kE9PwyAYxonRxGXuA3hr9Izyp0A5NtU5k5ld9OKFUEa3Lhts0JnMTy9NF-NJDvAmPL_nyfsAcIvRA0ZIPEaMC4QhwgKK_uIXYISlpJAhTC_TzAWFWCJ2DSYxblA6lIgilyMwKzPnv-w269pd61ZZPDmzDt6137prvcsaH7JqARfTp7f0Fzu7i9kx9sqq_CyrLNrD0Tpj4w24avQ22sn5HYOP6fN7NYPzxctrVc6hoTntINdM1oxzhqSQ1Oa4tstc6MLUtl4SYZZUmCYvkOa8qTVjkmhtLOXM8hwZRugY3A----BTdOzUxh-DS5EqbYgFl1QUSYUHlQk-xmAbtQ_tToeTwkj1namhM5UI1XemeGLIwMSkdSsb_jj_A92dg9berQ6J-03ighCZY0LpD4_veLY</recordid><startdate>20170501</startdate><enddate>20170501</enddate><creator>李莉 姚望 韩力 胡贵军</creator><general>Tianjin University of Technology</general><general>Springer Nature B.V</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>W92</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20170501</creationdate><title>A novel timing synchronization for CO-OFDM systems using CAZAC sequences</title><author>李莉 姚望 韩力 胡贵军</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c343t-6a59b566509793e41bed47a8cbebd27cd37cf480a66fba5592aace365e640c523</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Algorithms</topic><topic>Bandwidths</topic><topic>Computer simulation</topic><topic>Lasers</topic><topic>Optical Devices</topic><topic>Optics</topic><topic>Orthogonal Frequency Division Multiplexing</topic><topic>Photonics</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>Sidelobes</topic><topic>Synchronism</topic><topic>Time measurement</topic><toplevel>online_resources</toplevel><creatorcontrib>李莉 姚望 韩力 胡贵军</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库-工程技术</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>CrossRef</collection><jtitle>Optoelectronics letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>李莉 姚望 韩力 胡贵军</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A novel timing synchronization for CO-OFDM systems using CAZAC sequences</atitle><jtitle>Optoelectronics letters</jtitle><stitle>Optoelectron. Lett</stitle><addtitle>Opto-electronics Letters</addtitle><date>2017-05-01</date><risdate>2017</risdate><volume>13</volume><issue>3</issue><spage>225</spage><epage>228</epage><pages>225-228</pages><issn>1673-1905</issn><eissn>1993-5013</eissn><abstract>A novel symbol timing synchronization algorithm based on constant amplitude zero auto correlation（CAZAC） sequences is proposed for coherent optical orthogonal frequency division multiplexing（CO-OFDM） systems. The training symbol of the proposed algorithm is comprised of four different parts, utilizing even symmetry property of each part to accomplish timing synchronization. The performance of the proposed algorithm is demonstrated by means of simulations in OFDM and CO-OFDM systems. The proposed algorithm is shown to eliminate the timing sidelobes of Park＇s algorithm and has a more accurate timing estimation. In the condition of chromatic dispersion（CD）, the timing metric of the proposed method still maintains its peak value at the correct timing point, while the values are almost 0 at all the other positions. Meanwhile, the timing mean square error（MSE） of the proposed algorithm remains around 10^-6.</abstract><cop>Tianjin</cop><pub>Tianjin University of Technology</pub><doi>10.1007/s11801-017-7017-6</doi><tpages>4</tpages></addata></record> |
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| ispartof | Optoelectronics letters, 2017-05, Vol.13 (3), p.225-228 |
| issn | 1673-1905 1993-5013 |
| language | eng |
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| source | Alma/SFX Local Collection; SpringerLink Journals - AutoHoldings |
| subjects | Algorithms Bandwidths Computer simulation Lasers Optical Devices Optics Orthogonal Frequency Division Multiplexing Photonics Physics Physics and Astronomy Sidelobes Synchronism Time measurement |
| title | A novel timing synchronization for CO-OFDM systems using CAZAC sequences |
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