Journal of Optical Communications and Networking | Gerard T, Semrau D, Sillekens E, Edwards A, Pelouch W, et al | Through C+L band transmission experiments and theoretical modeling, we investigat...
Relative impact of channel symbol rate on transmission capacity
Abstract
Through C+L band transmission experiments and theoretical modeling, we investigate the impact of channel symbol rate (30, 40, 60, and 85Â GBd) on the performance of data center interconnection, metropolitan, and core network distances. Two different transponder architectures are investigated: (a) single-carrier receiver and (b) multi-carrier receiver, where multiple subcarriers are received together in a single wideband receiver. The architectures of both receivers experience a reduction in the achievable information rate as the channel symbol rate increases due to dominating transceiver noise; this holds over all tested transmission distances. However, the multi-carrier receiver shows a weaker performance dependency on symbol rate, as receiver-related impairments dominate. When testing the single-carrier receiver after 630Â km, we find that by increasing the channel symbol rate from 40 to 85Â GBd, gross capacity decreases by 16%; however, the required number of transceivers to fill the transmission window decreases by 52%. Using the multi-carrier receiver reduces receiver count further. This potentially impacts the cost and complexity of deploying fully loaded transmission systems.
Publication Type: | Journal Article |
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Publication Sub Type: | Article |
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Authors: | Gerard T, Semrau D, Sillekens E, Edwards A, Pelouch W, Barnes S, Killey RI, Lavery D, Bayvel P, Galdino L |
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Publisher: | The Optical Society |
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Publication date: | 01/04/2020 |
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Pagination: | B1 - B8 |
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Journal: | Journal of Optical Communications and Networking |
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Volume: | 12 |
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Issue: | 14 |
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Status: | Published Online |
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Print ISSN: | 1943-0620 |
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DOI: | |
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Full Text URL: | |
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