Efficient Mobile Fronthaul via DSP-Based Channel Aggregation
Mobile fronthaul is an important network segment that bridges wireless baseband units and remote radio units to support cloud radio access network. We review recent progresses on the use of frequency-division multiplexing to achieve highly bandwidth-efficient mobile fronthaul with low latency. We pr...
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| Veröffentlicht in: | Journal of lightwave technology 2016-03, Vol.34 (6), p.1556-1564 |
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| container_title | Journal of lightwave technology |
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| creator | Xiang Liu Huaiyu Zeng Chand, Naresh Effenberger, Frank |
| description | Mobile fronthaul is an important network segment that bridges wireless baseband units and remote radio units to support cloud radio access network. We review recent progresses on the use of frequency-division multiplexing to achieve highly bandwidth-efficient mobile fronthaul with low latency. We present digital signal processing (DSP) techniques for channel aggregation and deaggregation, frequency-domain windowing, adjacent channel leak age ratio reduction, and synchronous transmission of both the I/Q waveforms of wireless signals and the control words (CWs) used for control and management purposes. In a proof-of-concept experiment, we demonstrate the transmission of 48 20-MHz LTE signals with a common public radio interface (CPRI) equivalent data rate of 59 Gb/s, achieving a low round-trip DSP latency of |
| doi_str_mv | 10.1109/JLT.2015.2508451 |
| format | Article |
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We review recent progresses on the use of frequency-division multiplexing to achieve highly bandwidth-efficient mobile fronthaul with low latency. We present digital signal processing (DSP) techniques for channel aggregation and deaggregation, frequency-domain windowing, adjacent channel leak age ratio reduction, and synchronous transmission of both the I/Q waveforms of wireless signals and the control words (CWs) used for control and management purposes. In a proof-of-concept experiment, we demonstrate the transmission of 48 20-MHz LTE signals with a common public radio interface (CPRI) equivalent data rate of 59 Gb/s, achieving a low round-trip DSP latency of <;2 μs and a low mean error-vector magnitude (EVM) of ~2.5% after fiber transmission. In a follow-up experiment, we further demonstrate the transmission of 32 20-MHz LTE signals together with CPRI-compliant CWs, corresponding to a CPRI-equivalent data rate of 39.32 Gb/s, in single optical wavelength channel that requires an RF bandwidth of only ~1.6 GHz. After transmission over 5-km standard single-mode fiber, the CWs are recovered without error, while the LTE signals are recovered with an EVM of lower than 3%. Applying this technique to future 5G wireless networks with massive multiple-input multiple-output is also discussed. This efficient mobile fronthaul technique may find promising applications in future integrated fiber/wireless access networks to provide ultrabroadband access services.</description><identifier>ISSN: 0733-8724</identifier><identifier>EISSN: 1558-2213</identifier><identifier>DOI: 10.1109/JLT.2015.2508451</identifier><identifier>CODEN: JLTEDG</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Bandwidth ; cloud radio access network (C-RAN) ; common public radio interface (CPRI) ; Digital signal processing ; Frequency division multiplexing ; frequency-division multiplexing (FDM) ; Mobile communication ; mobile fronthaul ; Optical fiber transmission ; Optical fibers ; Signal processing ; Wireless communication ; Wireless networks</subject><ispartof>Journal of lightwave technology, 2016-03, Vol.34 (6), p.1556-1564</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. 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We review recent progresses on the use of frequency-division multiplexing to achieve highly bandwidth-efficient mobile fronthaul with low latency. We present digital signal processing (DSP) techniques for channel aggregation and deaggregation, frequency-domain windowing, adjacent channel leak age ratio reduction, and synchronous transmission of both the I/Q waveforms of wireless signals and the control words (CWs) used for control and management purposes. In a proof-of-concept experiment, we demonstrate the transmission of 48 20-MHz LTE signals with a common public radio interface (CPRI) equivalent data rate of 59 Gb/s, achieving a low round-trip DSP latency of <;2 μs and a low mean error-vector magnitude (EVM) of ~2.5% after fiber transmission. In a follow-up experiment, we further demonstrate the transmission of 32 20-MHz LTE signals together with CPRI-compliant CWs, corresponding to a CPRI-equivalent data rate of 39.32 Gb/s, in single optical wavelength channel that requires an RF bandwidth of only ~1.6 GHz. After transmission over 5-km standard single-mode fiber, the CWs are recovered without error, while the LTE signals are recovered with an EVM of lower than 3%. Applying this technique to future 5G wireless networks with massive multiple-input multiple-output is also discussed. This efficient mobile fronthaul technique may find promising applications in future integrated fiber/wireless access networks to provide ultrabroadband access services.</description><subject>Bandwidth</subject><subject>cloud radio access network (C-RAN)</subject><subject>common public radio interface (CPRI)</subject><subject>Digital signal processing</subject><subject>Frequency division multiplexing</subject><subject>frequency-division multiplexing (FDM)</subject><subject>Mobile communication</subject><subject>mobile fronthaul</subject><subject>Optical fiber transmission</subject><subject>Optical fibers</subject><subject>Signal processing</subject><subject>Wireless communication</subject><subject>Wireless networks</subject><issn>0733-8724</issn><issn>1558-2213</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>ESBDL</sourceid><sourceid>RIE</sourceid><recordid>eNo9kEtLAzEUhYMoWKt7wc2A66nJJJkk4Kb24YOKgnUdksxNmzLO1GQq-O-d0uLqbL5zLvdD6JrgESFY3b0slqMCEz4qOJaMkxM0IJzLvCgIPUUDLCjNpSjYObpIaYMxYUyKAbqfeR9cgKbLXlsbasjmsW26tdnV2U8w2fTjPX8wCapssjZNA3U2Xq0irEwX2uYSnXlTJ7g65hB9zmfLyVO-eHt8nowXuWOYdXnFK86x8RK844X1QnpfVQqM44YZJbiRzDilhLdWiZK4SjlbOmltacGVlA7R7WF3G9vvHaROb9pdbPqTmoj-KUn66Cl8oFxsU4rg9TaGLxN_NcF670j3jvTekT466is3h0oAgH9cUC4xY_QPMrFikw</recordid><startdate>20160315</startdate><enddate>20160315</enddate><creator>Xiang Liu</creator><creator>Huaiyu Zeng</creator><creator>Chand, Naresh</creator><creator>Effenberger, Frank</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</general><scope>97E</scope><scope>ESBDL</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></search><sort><creationdate>20160315</creationdate><title>Efficient Mobile Fronthaul via DSP-Based Channel Aggregation</title><author>Xiang Liu ; Huaiyu Zeng ; Chand, Naresh ; Effenberger, Frank</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c404t-d5d550af8efc52bf78ffdd9eac5a4a975a84ac997fbb9761cd9cb6c8bb6bec633</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Bandwidth</topic><topic>cloud radio access network (C-RAN)</topic><topic>common public radio interface (CPRI)</topic><topic>Digital signal processing</topic><topic>Frequency division multiplexing</topic><topic>frequency-division multiplexing (FDM)</topic><topic>Mobile communication</topic><topic>mobile fronthaul</topic><topic>Optical fiber transmission</topic><topic>Optical fibers</topic><topic>Signal processing</topic><topic>Wireless communication</topic><topic>Wireless networks</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Xiang Liu</creatorcontrib><creatorcontrib>Huaiyu Zeng</creatorcontrib><creatorcontrib>Chand, Naresh</creatorcontrib><creatorcontrib>Effenberger, Frank</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE Open Access Journals</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</fulltext></delivery><addata><au>Xiang Liu</au><au>Huaiyu Zeng</au><au>Chand, Naresh</au><au>Effenberger, Frank</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Efficient Mobile Fronthaul via DSP-Based Channel Aggregation</atitle><jtitle>Journal of lightwave technology</jtitle><stitle>JLT</stitle><date>2016-03-15</date><risdate>2016</risdate><volume>34</volume><issue>6</issue><spage>1556</spage><epage>1564</epage><pages>1556-1564</pages><issn>0733-8724</issn><eissn>1558-2213</eissn><coden>JLTEDG</coden><abstract>Mobile fronthaul is an important network segment that bridges wireless baseband units and remote radio units to support cloud radio access network. We review recent progresses on the use of frequency-division multiplexing to achieve highly bandwidth-efficient mobile fronthaul with low latency. We present digital signal processing (DSP) techniques for channel aggregation and deaggregation, frequency-domain windowing, adjacent channel leak age ratio reduction, and synchronous transmission of both the I/Q waveforms of wireless signals and the control words (CWs) used for control and management purposes. In a proof-of-concept experiment, we demonstrate the transmission of 48 20-MHz LTE signals with a common public radio interface (CPRI) equivalent data rate of 59 Gb/s, achieving a low round-trip DSP latency of <;2 μs and a low mean error-vector magnitude (EVM) of ~2.5% after fiber transmission. In a follow-up experiment, we further demonstrate the transmission of 32 20-MHz LTE signals together with CPRI-compliant CWs, corresponding to a CPRI-equivalent data rate of 39.32 Gb/s, in single optical wavelength channel that requires an RF bandwidth of only ~1.6 GHz. After transmission over 5-km standard single-mode fiber, the CWs are recovered without error, while the LTE signals are recovered with an EVM of lower than 3%. Applying this technique to future 5G wireless networks with massive multiple-input multiple-output is also discussed. This efficient mobile fronthaul technique may find promising applications in future integrated fiber/wireless access networks to provide ultrabroadband access services.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/JLT.2015.2508451</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Bandwidth cloud radio access network (C-RAN) common public radio interface (CPRI) Digital signal processing Frequency division multiplexing frequency-division multiplexing (FDM) Mobile communication mobile fronthaul Optical fiber transmission Optical fibers Signal processing Wireless communication Wireless networks |
| title | Efficient Mobile Fronthaul via DSP-Based Channel Aggregation |
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