150 likes | 297 Views
Trasmition of 40GBase-T and 100Gbase-T over category 7A copper cables. Steven Fratello. Need. Copper wires are only useful for short distance transmitions Alien talk often disrupts the signal on a copper cable Fext Next. Need. www.cisco.com/en/US/products/hw/optical/ps201...
E N D
Trasmition of 40GBase-T and 100Gbase-T over category 7A copper cables Steven Fratello
Need • Copper wires are only useful for short distance transmitions • Alien talk often disrupts the signal on a copper cable • Fext • Next
Need www.cisco.com/en/US/products/hw/optical/ps201... Increase in network traffic 1996-2001
Knowledge base CAT 7(ISO Class F)600 MHz1.2 GHz in pairs with Siemon connector Full-motion videoTeleradiologyGovernment and manufacturing environmentsFully Shielded (S/FTP) system using non-RJ45 connectors but backwards compatible with hybrid cords.Until February 2008, the only standard (published in 2002) to support 10GBASE-T for a full 100m.
Kavehrad 07 • it is possible to extend the length of category 7 copper cables from 70 meters to 100 meters (Kavehrad 07)
Enteshari/Kavhrad 09 Tranmition at 40Gbase-T is practical at lengths up to 50 meters Transmition at 100GBase-T can be practical at lengths up to 10 meters
Viterbri decoder • “1.Branch metric calculation – calculation of a distance between the input pair of bits and the • four possible “ideal” pairs (“00”, “01”, “10”, “11”). • 2.Path metric calculation – for every encoder state, calculate a metric for the survivor path • ending in this state (a survivor path is a path with the minimum metric). • 3.Traceback – this step is necessary for hardware implementations that don't store full • information about the survivor paths, but store only one bit decision every time when one • survivor path is selected from the two.” • Encoded stream > branch metric calculation> path metric calculation> Traceback> decoded stream
Purpose • To Determine the distances which 100Gbase- T is more practical than 40Gbase-T.
Hypothesis Alternate hypothesis- The 100Gbase over the copper cable will be more practical than the cable transporting 40Gbase in short distances Null Hypothesis- The 40Gbase transmition over the copper cable is always more practical
Do Ability • Very doable • Most info can be recorded on a computer • Only the copper cables are needed
Protocols • Data is sent from one computer to another • Computer receiving the data would record how much data is received • Data will be run through the viterbri decoder
Budget • Vendor Object Price • Nexans Category 7A copper $19.55 • cable 200 meters
Methodology • Category 7A cables • 40GBase- run through 100GBase-T • Copper cable run through copper cable Signal strength recorded on receiving computer Data run through Viterbri decoder Data statistically analyzed on spss
Bibliography • http://www.ieee802.org/3/10GBT/public/nov03/kavehrad_1_1103.pdfpgs 1-34. 2003 • Researchers Push transmission Rate of copper Cables • Ultrafast Home Network Possible by Using Separate Optical Fibers • http://www.ieee802.org/3/hssg/public/nov07/kavehrad_01_1107.pdf 1-21 2007 • http://www.nexans.us/US/2009/DC09_paper.pdf 1-16 Ali Entashari, Mohsenkaverad • K. Seki, et. al., Performance Evaluation of Low-Latency LDPC Code, IEEE 802.3 • 10GBASE-T Study Group Interim Meeting, July 2004.