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| Paper Abstract and Keywords | ||
| Presentation | 2017-04-20 15:30 [Special Invited Talk] 10GBASE-T Technologies -- Development of Ethernet Transmission Technologies over Copper Cable -- Hiromi Ueda (Tokyo Univ. of Tech.)  CS2017-5 CQ2017-3 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | 10GBASE-T uses all 4 pairs of the LAN cable, and realizes full duplex transmission capacity of 11.2 Gbps for 100 m, where 3.5 bits are sent every 1.25 ns for each pair, i.e. 2.8 Gbps (800 Mbaud×3.5 bits). The PCS converts 64 bits to 65 bits after scramnling, forms 512×7 bit LDPC frame for 50 blocks of 65 bits; 512×7 bits consist of 512×4 bits encoded by LDPC(2048, 1723) and uncoded 512×3 bits (1527 bits, 8 bits of CRC, and auxiary 1 bit). Each 7 bit signal is one to one mapped to one of 128 points in the 2 dimensional DSQ 128 (Double SQuare 128) partitioning into 16 subsets; 4 coded bits select a subset, and 3 uncoded bits select a point within the subset. The two values of the horizontal and vertical axes in DSQ128 are converted into two PAM16s, and each PAM-16 is sent every 125 ns for one pair. The PMA uses a hubrid, a echo canceller, a NEXT canceller to transmit full duplex data over one pair, and also an adaptive equalizer to reduce intersymbl interference like 1000BASE-T. Unkike 1000BASE-T 10GBASE-T suppresses FEXT by uing 4×4 matrix FFE (Feed Forward Equalizer) as well as 4 DBE (Decision Feedback Equalizer) and introduces the Tomlison-Harashima Precoding at the transmission side to reduce intersymbol interference. 10GBASE-T achieves full duplex transmission of 100 m over the Cat-6A cable (STP). | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | 10GBASE-T / DSQ128 / LDPC / matrix FFE / THP / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 117, no. 4, CS2017-5, pp. 21-21, April 2017. | |
| Paper # | CS2017-5 | |
| Date of Issue | 2017-04-13 (CS, CQ) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | CS2017-5 CQ2017-3 |
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| Conference Information | |
| Committee | CS CQ |
| Conference Date | 2017-04-20 - 2017-04-21 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Chitose Institute of Science and Technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Network Serice, Service Quality, SDN (Software-Defined Networking), NFV (Network Functions. Virtualization), Network Virtualization, Cloud, Contents Delivery, etc |
| Paper Information | |
| Registration To | CS |
| Conference Code | 2017-04-CS-CQ |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | 10GBASE-T Technologies |
| Sub Title (in English) | Development of Ethernet Transmission Technologies over Copper Cable |
| Keyword(1) | 10GBASE-T |
| Keyword(2) | DSQ128 |
| Keyword(3) | LDPC |
| Keyword(4) | matrix FFE |
| Keyword(5) | THP |
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| 1st Author's Name | Hiromi Ueda |
| 1st Author's Affiliation | Tokyo University of Technology (Tokyo Univ. of Tech.) |
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| Speaker | Author-1 |
| Date Time | 2017-04-20 15:30:00 |
| Presentation Time | 45 minutes |
| Registration for | CS |
| Paper # | CS2017-5, CQ2017-3 |
| Volume (vol) | vol.117 |
| Number (no) | no.4(CS), no.5(CQ) |
| Page | p.21(CS), p.9(CQ) |
| #Pages | 1 |
| Date of Issue | 2017-04-13 (CS, CQ) |
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