Cascaded IF-Over-Fiber Links With Hybrid Signal Processing for Analog Mobile Fronthaul
We present an intermediate frequency-over-fiber (IFoF) transmission system that uses cascaded connections between a broadband link and multiple narrowband links for future mobile fronthaul (MFH). The downlink MFH system employs analog and digital signal processing after broadband and narrowband IFoF...
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| Veröffentlicht in: | Journal of lightwave technology 2020-10, Vol.38 (20), p.5656-5667 |
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| container_title | Journal of lightwave technology |
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| creator | Tanaka, Kazuki Kao, Hsuan-Yun Ishimura, Shota Nishimura, Kosuke Kawanishi, Tetsuya Suzuki, Masatoshi |
| description | We present an intermediate frequency-over-fiber (IFoF) transmission system that uses cascaded connections between a broadband link and multiple narrowband links for future mobile fronthaul (MFH). The downlink MFH system employs analog and digital signal processing after broadband and narrowband IFoF transmissions, respectively, for extractions and frequency conversions of IF signals. The bandwidth of the optical components for the downlink MFH system is investigated and compared with that for the subcarrier multiplexed passive optical network (SCM-PON). The results support the satisfactory performance of the MFH system for bandwidth reduction. Two types of our developed digital signal processors for the MFH system are also described in detail: One is for an output of a single radio frequency (RF) stream, whereas the other is for simultaneous outputs of multiple RF streams. In addition, using either of the digital signal processors, we experimentally demonstrate the downlink MFH system's transmission of 64-QAM filtered OFDM (f-OFDM) signals with 360-MHz signal bandwidth and 3.6-MHz guard bands between adjacent IF signals and 64-QAM OFDM signals with 380.16-MHz signal bandwidth and 19.84-MHz guard bands between IF signals. In both experiments, eighteen IF signals are successfully transmitted over 20-km and 1-km fibers, which includes analog and real-time digital signal processing for IF channel extractions and frequency conversions. The results obtained in this study demonstrate the potential of cascaded IFoF links using hybrid signal processing for 5G and future MFH systems. |
| doi_str_mv | 10.1109/JLT.2020.3001930 |
| format | Article |
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The downlink MFH system employs analog and digital signal processing after broadband and narrowband IFoF transmissions, respectively, for extractions and frequency conversions of IF signals. The bandwidth of the optical components for the downlink MFH system is investigated and compared with that for the subcarrier multiplexed passive optical network (SCM-PON). The results support the satisfactory performance of the MFH system for bandwidth reduction. Two types of our developed digital signal processors for the MFH system are also described in detail: One is for an output of a single radio frequency (RF) stream, whereas the other is for simultaneous outputs of multiple RF streams. In addition, using either of the digital signal processors, we experimentally demonstrate the downlink MFH system's transmission of 64-QAM filtered OFDM (f-OFDM) signals with 360-MHz signal bandwidth and 3.6-MHz guard bands between adjacent IF signals and 64-QAM OFDM signals with 380.16-MHz signal bandwidth and 19.84-MHz guard bands between IF signals. In both experiments, eighteen IF signals are successfully transmitted over 20-km and 1-km fibers, which includes analog and real-time digital signal processing for IF channel extractions and frequency conversions. The results obtained in this study demonstrate the potential of cascaded IFoF links using hybrid signal processing for 5G and future MFH systems.</description><identifier>ISSN: 0733-8724</identifier><identifier>EISSN: 1558-2213</identifier><identifier>DOI: 10.1109/JLT.2020.3001930</identifier><identifier>CODEN: JLTEDG</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>5G mobile communication ; Bandwidth ; Bandwidths ; Broadband ; Broadband antennas ; Broadband communication ; Centralized radio access network (C-RAN) ; Digital media ; Digital signal processing ; Digital signal processors ; Downlinking ; fifth generation (5G) ; Intermediate frequencies ; Links ; mobile fronthaul ; Narrowband ; Optical communication ; Optical components ; Orthogonal Frequency Division Multiplexing ; Processors ; Radio frequency ; radio-over-fiber (RoF) ; Signal processing ; Subcarriers ; Transmitting antennas</subject><ispartof>Journal of lightwave technology, 2020-10, Vol.38 (20), p.5656-5667</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2020</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c291t-2a2eaa8c149a8187a2e3d61dfe98e8f37f7e807bfde751d040ee15c251c881b93</citedby><cites>FETCH-LOGICAL-c291t-2a2eaa8c149a8187a2e3d61dfe98e8f37f7e807bfde751d040ee15c251c881b93</cites><orcidid>0000-0001-9724-8878 ; 0000-0002-5777-0829 ; 0000-0002-1862-727X ; 0000-0002-0310-2980 ; 0000-0003-3752-2956</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/9115812$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,776,780,792,27901,27902,54733</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/9115812$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Tanaka, Kazuki</creatorcontrib><creatorcontrib>Kao, Hsuan-Yun</creatorcontrib><creatorcontrib>Ishimura, Shota</creatorcontrib><creatorcontrib>Nishimura, Kosuke</creatorcontrib><creatorcontrib>Kawanishi, Tetsuya</creatorcontrib><creatorcontrib>Suzuki, Masatoshi</creatorcontrib><title>Cascaded IF-Over-Fiber Links With Hybrid Signal Processing for Analog Mobile Fronthaul</title><title>Journal of lightwave technology</title><addtitle>JLT</addtitle><description>We present an intermediate frequency-over-fiber (IFoF) transmission system that uses cascaded connections between a broadband link and multiple narrowband links for future mobile fronthaul (MFH). The downlink MFH system employs analog and digital signal processing after broadband and narrowband IFoF transmissions, respectively, for extractions and frequency conversions of IF signals. The bandwidth of the optical components for the downlink MFH system is investigated and compared with that for the subcarrier multiplexed passive optical network (SCM-PON). The results support the satisfactory performance of the MFH system for bandwidth reduction. Two types of our developed digital signal processors for the MFH system are also described in detail: One is for an output of a single radio frequency (RF) stream, whereas the other is for simultaneous outputs of multiple RF streams. In addition, using either of the digital signal processors, we experimentally demonstrate the downlink MFH system's transmission of 64-QAM filtered OFDM (f-OFDM) signals with 360-MHz signal bandwidth and 3.6-MHz guard bands between adjacent IF signals and 64-QAM OFDM signals with 380.16-MHz signal bandwidth and 19.84-MHz guard bands between IF signals. In both experiments, eighteen IF signals are successfully transmitted over 20-km and 1-km fibers, which includes analog and real-time digital signal processing for IF channel extractions and frequency conversions. The results obtained in this study demonstrate the potential of cascaded IFoF links using hybrid signal processing for 5G and future MFH systems.</description><subject>5G mobile communication</subject><subject>Bandwidth</subject><subject>Bandwidths</subject><subject>Broadband</subject><subject>Broadband antennas</subject><subject>Broadband communication</subject><subject>Centralized radio access network (C-RAN)</subject><subject>Digital media</subject><subject>Digital signal processing</subject><subject>Digital signal processors</subject><subject>Downlinking</subject><subject>fifth generation (5G)</subject><subject>Intermediate frequencies</subject><subject>Links</subject><subject>mobile fronthaul</subject><subject>Narrowband</subject><subject>Optical communication</subject><subject>Optical components</subject><subject>Orthogonal Frequency Division Multiplexing</subject><subject>Processors</subject><subject>Radio frequency</subject><subject>radio-over-fiber (RoF)</subject><subject>Signal processing</subject><subject>Subcarriers</subject><subject>Transmitting antennas</subject><issn>0733-8724</issn><issn>1558-2213</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kNFLwzAQh4MoOKfvgi8BnztzSbskj2NYN6lMcOpjSNvrllnbmXTC_ns7Nnw6fsf3O46PkFtgIwCmH56z5YgzzkaCMdCCnZEBJImKOAdxTgZMChEpyeNLchXCpmfiWMkB-ZjaUNgSSzpPo8Uv-ih1OXqaueYr0E_Xrelsn3tX0je3amxNX31bYAiuWdGq9XTS79oVfWlzVyNNfdt0a7urr8lFZeuAN6c5JO_p43I6i7LF03w6yaKCa-gibjlaqwqItVWgZB9FOYayQq1QVUJWEhWTeVWiTKBkMUOEpOAJFEpBrsWQ3B_vbn37s8PQmU278_1PwfA4HrNEg1I9xY5U4dsQPFZm69239XsDzBzsmd6eOdgzJ3t95e5YcYj4j2uARAEXfxAmaiM</recordid><startdate>20201015</startdate><enddate>20201015</enddate><creator>Tanaka, Kazuki</creator><creator>Kao, Hsuan-Yun</creator><creator>Ishimura, Shota</creator><creator>Nishimura, Kosuke</creator><creator>Kawanishi, Tetsuya</creator><creator>Suzuki, Masatoshi</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>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0001-9724-8878</orcidid><orcidid>https://orcid.org/0000-0002-5777-0829</orcidid><orcidid>https://orcid.org/0000-0002-1862-727X</orcidid><orcidid>https://orcid.org/0000-0002-0310-2980</orcidid><orcidid>https://orcid.org/0000-0003-3752-2956</orcidid></search><sort><creationdate>20201015</creationdate><title>Cascaded IF-Over-Fiber Links With Hybrid Signal Processing for Analog Mobile Fronthaul</title><author>Tanaka, Kazuki ; Kao, Hsuan-Yun ; Ishimura, Shota ; Nishimura, Kosuke ; Kawanishi, Tetsuya ; Suzuki, Masatoshi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c291t-2a2eaa8c149a8187a2e3d61dfe98e8f37f7e807bfde751d040ee15c251c881b93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>5G mobile communication</topic><topic>Bandwidth</topic><topic>Bandwidths</topic><topic>Broadband</topic><topic>Broadband antennas</topic><topic>Broadband communication</topic><topic>Centralized radio access network (C-RAN)</topic><topic>Digital media</topic><topic>Digital signal processing</topic><topic>Digital signal processors</topic><topic>Downlinking</topic><topic>fifth generation (5G)</topic><topic>Intermediate frequencies</topic><topic>Links</topic><topic>mobile fronthaul</topic><topic>Narrowband</topic><topic>Optical communication</topic><topic>Optical components</topic><topic>Orthogonal Frequency Division Multiplexing</topic><topic>Processors</topic><topic>Radio frequency</topic><topic>radio-over-fiber (RoF)</topic><topic>Signal processing</topic><topic>Subcarriers</topic><topic>Transmitting antennas</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tanaka, Kazuki</creatorcontrib><creatorcontrib>Kao, Hsuan-Yun</creatorcontrib><creatorcontrib>Ishimura, Shota</creatorcontrib><creatorcontrib>Nishimura, Kosuke</creatorcontrib><creatorcontrib>Kawanishi, Tetsuya</creatorcontrib><creatorcontrib>Suzuki, Masatoshi</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>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of lightwave technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Tanaka, Kazuki</au><au>Kao, Hsuan-Yun</au><au>Ishimura, Shota</au><au>Nishimura, Kosuke</au><au>Kawanishi, Tetsuya</au><au>Suzuki, Masatoshi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Cascaded IF-Over-Fiber Links With Hybrid Signal Processing for Analog Mobile Fronthaul</atitle><jtitle>Journal of lightwave technology</jtitle><stitle>JLT</stitle><date>2020-10-15</date><risdate>2020</risdate><volume>38</volume><issue>20</issue><spage>5656</spage><epage>5667</epage><pages>5656-5667</pages><issn>0733-8724</issn><eissn>1558-2213</eissn><coden>JLTEDG</coden><abstract>We present an intermediate frequency-over-fiber (IFoF) transmission system that uses cascaded connections between a broadband link and multiple narrowband links for future mobile fronthaul (MFH). The downlink MFH system employs analog and digital signal processing after broadband and narrowband IFoF transmissions, respectively, for extractions and frequency conversions of IF signals. The bandwidth of the optical components for the downlink MFH system is investigated and compared with that for the subcarrier multiplexed passive optical network (SCM-PON). The results support the satisfactory performance of the MFH system for bandwidth reduction. Two types of our developed digital signal processors for the MFH system are also described in detail: One is for an output of a single radio frequency (RF) stream, whereas the other is for simultaneous outputs of multiple RF streams. In addition, using either of the digital signal processors, we experimentally demonstrate the downlink MFH system's transmission of 64-QAM filtered OFDM (f-OFDM) signals with 360-MHz signal bandwidth and 3.6-MHz guard bands between adjacent IF signals and 64-QAM OFDM signals with 380.16-MHz signal bandwidth and 19.84-MHz guard bands between IF signals. In both experiments, eighteen IF signals are successfully transmitted over 20-km and 1-km fibers, which includes analog and real-time digital signal processing for IF channel extractions and frequency conversions. The results obtained in this study demonstrate the potential of cascaded IFoF links using hybrid signal processing for 5G and future MFH systems.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/JLT.2020.3001930</doi><tpages>12</tpages><orcidid>https://orcid.org/0000-0001-9724-8878</orcidid><orcidid>https://orcid.org/0000-0002-5777-0829</orcidid><orcidid>https://orcid.org/0000-0002-1862-727X</orcidid><orcidid>https://orcid.org/0000-0002-0310-2980</orcidid><orcidid>https://orcid.org/0000-0003-3752-2956</orcidid></addata></record> |
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| ispartof | Journal of lightwave technology, 2020-10, Vol.38 (20), p.5656-5667 |
| issn | 0733-8724 1558-2213 |
| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | 5G mobile communication Bandwidth Bandwidths Broadband Broadband antennas Broadband communication Centralized radio access network (C-RAN) Digital media Digital signal processing Digital signal processors Downlinking fifth generation (5G) Intermediate frequencies Links mobile fronthaul Narrowband Optical communication Optical components Orthogonal Frequency Division Multiplexing Processors Radio frequency radio-over-fiber (RoF) Signal processing Subcarriers Transmitting antennas |
| title | Cascaded IF-Over-Fiber Links With Hybrid Signal Processing for Analog Mobile Fronthaul |
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