Linear network coding and parallel transmission increase fault tolerance and optical reach
As optical networks evolve towards more dynamicity and an ever more efficient and elastic spectrum utilization, a more integrated, fault tolerant and system efficient design is becoming critical. To increase efficiency of spectral resource in bit rate per Hz (bit/s/Hz), high-level modulation formats...
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| Format: | Article |
| Language: | en_US |
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Institute of Electrical and Electronics Engineers (IEEE)
2016
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| Online Access: | http://hdl.handle.net/1721.1/100952 https://orcid.org/0000-0003-4059-407X |
| _version_ | 1811071989068070912 |
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| author | Chen, Xiaomin Jukan, Admela Medard, Muriel |
| author2 | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science |
| author_facet | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Chen, Xiaomin Jukan, Admela Medard, Muriel |
| author_sort | Chen, Xiaomin |
| collection | MIT |
| description | As optical networks evolve towards more dynamicity and an ever more efficient and elastic spectrum utilization, a more integrated, fault tolerant and system efficient design is becoming critical. To increase efficiency of spectral resource in bit rate per Hz (bit/s/Hz), high-level modulation formats are used, challenged by the accompanying optical impairments and the resulting limitation of optical reach. Previous work has addressed the issue of optical reach and transmission fault tolerance in the physical layer by deploying various FEC schemes and by a careful design of optical transceivers and links. This paper uses a different approach, applicable to link and networking layers. We propose a novel theoretical framework, whereby a randomized linear network coding (LNC) is applied to the main optical path, and in parallel, an auxiliary optical path is used at much lower transmission speeds, i.e., in addition to the main path. With the reception of the auxiliary path, as we analytically show, the system is highly tolerant to bit errors and packet loss caused by optical impairments in the main path, whereby alleviating the constraints on optical transmission quality and indirectly achieving better optical reach and spectral efficiency. The results are shown for a case study of high-speed Ethernet end-system transmitted over optical OFDM networks, which due to the inherent system-level parallelism in both networks, present one of the most interesting candidate technologies for the proposed method to yield best performance. |
| first_indexed | 2024-09-23T08:59:08Z |
| format | Article |
| id | mit-1721.1/100952 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T08:59:08Z |
| publishDate | 2016 |
| publisher | Institute of Electrical and Electronics Engineers (IEEE) |
| record_format | dspace |
| spelling | mit-1721.1/1009522022-09-30T12:40:13Z Linear network coding and parallel transmission increase fault tolerance and optical reach Chen, Xiaomin Jukan, Admela Medard, Muriel Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Medard, Muriel As optical networks evolve towards more dynamicity and an ever more efficient and elastic spectrum utilization, a more integrated, fault tolerant and system efficient design is becoming critical. To increase efficiency of spectral resource in bit rate per Hz (bit/s/Hz), high-level modulation formats are used, challenged by the accompanying optical impairments and the resulting limitation of optical reach. Previous work has addressed the issue of optical reach and transmission fault tolerance in the physical layer by deploying various FEC schemes and by a careful design of optical transceivers and links. This paper uses a different approach, applicable to link and networking layers. We propose a novel theoretical framework, whereby a randomized linear network coding (LNC) is applied to the main optical path, and in parallel, an auxiliary optical path is used at much lower transmission speeds, i.e., in addition to the main path. With the reception of the auxiliary path, as we analytically show, the system is highly tolerant to bit errors and packet loss caused by optical impairments in the main path, whereby alleviating the constraints on optical transmission quality and indirectly achieving better optical reach and spectral efficiency. The results are shown for a case study of high-speed Ethernet end-system transmitted over optical OFDM networks, which due to the inherent system-level parallelism in both networks, present one of the most interesting candidate technologies for the proposed method to yield best performance. 2016-01-20T17:25:01Z 2016-01-20T17:25:01Z 2015-06 Article http://purl.org/eprint/type/ConferencePaper 978-1-4673-6432-4 http://hdl.handle.net/1721.1/100952 Chen, Xiaomin, Admela Jukan, and Muriel Medard. “Linear Network Coding and Parallel Transmission Increase Fault Tolerance and Optical Reach.” 2015 IEEE International Conference on Communications (ICC) (June 2015). https://orcid.org/0000-0003-4059-407X en_US http://dx.doi.org/10.1109/ICC.2015.7249151 Proceedings of the 2015 IEEE International Conference on Communications (ICC) Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Institute of Electrical and Electronics Engineers (IEEE) MIT web domain |
| spellingShingle | Chen, Xiaomin Jukan, Admela Medard, Muriel Linear network coding and parallel transmission increase fault tolerance and optical reach |
| title | Linear network coding and parallel transmission increase fault tolerance and optical reach |
| title_full | Linear network coding and parallel transmission increase fault tolerance and optical reach |
| title_fullStr | Linear network coding and parallel transmission increase fault tolerance and optical reach |
| title_full_unstemmed | Linear network coding and parallel transmission increase fault tolerance and optical reach |
| title_short | Linear network coding and parallel transmission increase fault tolerance and optical reach |
| title_sort | linear network coding and parallel transmission increase fault tolerance and optical reach |
| url | http://hdl.handle.net/1721.1/100952 https://orcid.org/0000-0003-4059-407X |
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