Topic
Physical Medium Dependent
About: Physical Medium Dependent is a research topic. Over the lifetime, 21 publications have been published within this topic receiving 188 citations.
Papers
Patent•
19 Dec 2000TL;DR: In this paper, a synchronous packet-switched network fabric with a standard SONET OC-192 line rate of 9.953280 Gbaud is used for high speed Ethernet data streams having a data rate of 10 Gb/s.
Abstract: An Ethernet mapping enables high speed Ethernet data streams having a data rate of 10 Gb/s to be transported across a synchronous packet switched network fabric having a standard SONET OC-192 line rate of 9.953280 Gbaud. The 10 Gb/s Ethernet data stream is compressed by removing interframe gaps between successive MAC frames to produce a compressed data stream, which is then mapped to a synchronous container. The synchronous container is then launched across the synchronous packet switched network fabric at a standard SONET OC-192 line rate of 9.953280 Gbaud. The synchronous container is preferably provided as a stripped STS-192c frame having only A1 and A2 octets of the Transport Overhead (TOH). The compressed data stream is mapped directly to the synchronous container, starting at the first octet following the A1 and A2 octets, without first being inserted into a conventional STS-192c SPE, so that most of the space normally used for TOH and Path overhead (POH) within a conventional STS-192c frame is freed-up for carrying the compressed data stream. At a receiving interface, the compressed data stream is extracted from received synchronous containers and decompressed, by insertion of interframe gaps between successive MAC frames, to generate a recovered 10 Gb/s Ethernet data stream. The starting bit of each successive MAC frame can be identified by examination of the length field of the immediately previous MAC frame.
81 citations
Patent•
27 Jun 2011
TL;DR: In this paper, a method for sending data from a transmitter to a receiver in a transmission network comprising receiving outgoing data that is eight-bits-ten-bits (8b10b) encoded at a Gigabit Ethernet (GE) line rate from a physical medium attachment (PMA) layer, 8b 10b decoding the received outgoing data, 64bits-to-66bits (64b66b), and forward error correction (FEC) encoding the 64b 66b encoded outgoing data.
Abstract: A method for sending data from a transmitter to a receiver in a transmission network comprising receiving outgoing data that is eight-bits-ten-bits (8b10b) encoded at a Gigabit Ethernet (GE) line rate from a physical medium attachment (PMA) layer, 8b10b decoding the received outgoing data, 64-bits-to-66-bits (64b66b) encoding the 8b10b decoded outgoing data, forward error correction (FEC) encoding the 64b66b encoded outgoing data, and serializing and sending the 64b66b and FEC encoded outgoing data at the GE line rate to a physical medium dependent (PMD) layer.
30 citations
Book•
1 Jan 1998
TL;DR: Gigabit Ethernet Technology: Introduction, Applications, Industry Trends and Technologies, and Scaling Gigabit Ethernet: Looking to the Future.
Abstract: 1. Introduction. Overview of This Book. Ethernet Origins. 2. The First Generation: 10 Mb/s Ethernet. Overview. Media Access Control Frame Format. Functional Overview of the 802.3 Model. Operation of an Ethernet Node. Repeater Definition. Bridge Definition. Router Definition. Media and Topology Options. Management. Technology Advantages of 10BASE-T. User Benefits of 10BASE-T. 3. The Second Generation: 100 Mb/s and Switched Ethernet. Overview. Functional Overview of the 802.3u Standard Suite. Media and Topology Options. Switched Ethernet. Full Duplex and Flow Control. VLAN Tagging. 10/100 Mb/s Capable Devices. 4. The Third Generation: 1000 Mb/s (Gigabit). Overview. Layer 3 Switch Definition. Gigabit Ethernet Technology: Introduction. Gigabit MAC Operation. Full-Duplex Operation. Reconciliation Sublayer (RS) and Gigabit Medium-Independent Interface (GMII) (Clause 35). Physical-Layer Technology. Physical Coding Sublayer (PCS) (Clause 36). Physical Medium Attachment (PMA) Sublayer (Clause 36). Auto-Negotiation for 1000BASE-X (Clause 37). Physical Medium Dependent (PMD) Sublayer (Clauses 38, 39). Repeater Operation (Clause 41). Topology (Clause 42). Management (Clause 30). 5. Gigabit Ethernet Applications. Networking Evolution. Gigabit Ethernet Meets the Challenge. Gigabit Ethernet Migration. Switched or Shared 100 Mb/s Ethernet and FDDI Upgrade. Shared, Switched and Routed Networks. Layer 3 Switching. Gigabit Ethernet vs. Other Technologies. 6. Looking to the Future. Overview. Industry Trends and Technologies. Network Challenges to Support Gigabit Ethernet. Scaling Gigabit Ethernet. Summary. Appendix A. 802.3 Document Cross Reference. Section/Clause Cross Reference. Appendix B. 802.3 Ethernet Frame and Address Formats. Appendix. Glossary. Index.
21 citations
Patent•
1 Mar 2001TL;DR: In this article, a physical medium dependent (PMD) transport subsystem is used in an xDSL communication system, which coordinates movement of data from an analog front end to a logical pipeline based TC layer, and exchanges common data objects with the latter to increase flexibility of the system.
Abstract: A physical medium dependent (PMD) transport subsystem is disclosed which is used in an xDSL communication system. The PMD subsystem coordinates movement of data from an analog front end to a logical pipeline based TC layer, and exchanges common data objects with the latter to increase flexibility of the system. The PMD subsystem includes a number of ASIC blocks for performing signal processing operations, and these ASIC blocks are also shared between ports and are multi-tasking to reduce hardware costs.
19 citations
TL;DR: In this paper, the impact of fiber dispersion, system non-linearities and their interaction when varying the channel-spacing value, ranging from 200 to 800 GHz, on the performance of a WDM 16 × 25 Gb/s architecture that has been proposed as next 400-Gb/s Ethernet (400-GbE) 40-km physical medium dependent (PMD) sublayer is numerically analyzed.
8 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2020 | 1 |
| 2015 | 1 |
| 2014 | 3 |
| 2013 | 1 |
| 2012 | 1 |
| 2011 | 3 |