Home Networking bandwidth growth needs and POF Eugene
Home Networking bandwidth growth needs and POF Eugene (Yuxin) DAI Ph. D Cox Communications Gigabit Ethernet over POF Study Group October , 2014
OUTLINE • Home networking requirements • GEPOF use cases – FTTH home networking applications – FTTH MDU applications – DOCSIS HFC home networking IEEE 802. 3 GEPOF Study Group 2
Home, Smart Home, Gigabit home… • Advance of FTTH technology enables gigabit services to the home – 10 G EPON can provide 10 Gbps symmetric shared bandwidth – NG-PON 2 can provide 40 Gbps aggregated capacities • Several service providers have announced providing Gigabit services to residential and business customers • Smart Home requires high bandwidth (data rate) connectivity in home – Cloud, 4 K video, multi-room DVR, high speed Internet, Internet of things… • The current home network physical medium may become the bottlenecks IEEE 802. 3 GEPOF Study Group 3
Home networking mediums today… Power line Twisted pair (Since 1880’s) Homeplug av What are in common? G. HN Coax cable (Since 1940) MOCA • Limited spectrum bandwidth • Limited data rate • Vulnerable to RF interference • Vulnerable to EMI • Complexity at PHY & MAC layers Air or vacuum (better be air) Wi. Fi 802. 11 x … Tomorrow, SMART HOME needs networking medium that can meet the bandwidth growth in the coming decades and centuries … IEEE 802. 3 GEPOF Study Group 4
PHY overheads do matter Low overhead is essential for mediums that have limited spectral resources… medium Standard PHY rate MAC rate Twisted pair G. HN 900 Mbps 500 Mbps Coax MOCA 2. 0 base 700 Mbps 400 Mbps MOCA 2. 0 Extended 1. 4 Gbps 800 Mbps Home. Plug. AV 200 Mbps 80 Mbps Home. Plug AV 2 (SISO) 750 Mbps 300 Mbps Power line POF may provide the spectral resource needed, and GEPOF may provide the required bandwidth and efficiency IEEE 802. 3 GEPOF Study Group 5
Fiber or Copper for Home Networking? Fiber Cooper Advantages • Optical medium • Immune to EMI • Immune to RF noises • Non conductive cables • Immune to lighting strike • Eliminating Spark Hazards • Higher bandwidth growth potential Advantages • Well Established foot print in home • Twist pair phone line • Coax • New cooper based home networking standards • G. hn, Mo. CA 2, homeplug AV 2 Disadvantages • Small or no installed base • GOF is hard to handle Disadvantages • Very limited bandwidth grow potential When bandwidth growth potential is the key weight, fiber is the choice for home networking
GOF or POF for Home Networking? Comparison POF with GOF Diameter (mm) Cladding 1 Core 0. 5 0. 125 GOF MMF(62. 5 um/125 um) GI-POF SI-POF GOF advantages • Infinite amount of bandwidth for home networking GOF disadvantages • Need professional person and equipment for installation POF advantages • Large core diameter ~ 1 mm • Low cost connectors • Easy installation and termination • Low cost light sources for POF • High speed LED • VCSEL POF disadvantages • Limited to short reach networking applications When easy installation, termination of fiber is the key weight, POF is the choice for home networking
GEPOF use case 1: DOCSIS home networking Problem • Even though Coax cable has a shield, it can still be subject to EMI and RF interferences • Some customer sites experience persistent EMI and/or RF interferences Fiber, up to 60 km CMTS Head. End Solution • Replace in home Coax cable with POF • A cable operator in US reported very positive results Coax, ~ 300 m Optical Node CM CM CM POF cable GEPOF Switch CM A cable operator in US already use POF for DOCSIS HFC home networking IEEE 802. 3 GEPOF Study Group 8
GEPOF use case 2: FTTH + POF home networking GEPOF converter Central Office/Head. End ODN TDM ONT 1: N GEPOF Switch POF cable OLT 10 G EPON TDMA ONT FTTH 20 km standard reach POF 50 m – 100 m • 10 G EPON provides Gigabit service to the home • GEPOF switch provides P 2 P Gigabit Ethernet in home POF network • Active GEPOF converters provide Gigabit Ethernet connectivity in home • To active GEPOF wall jack today • Connect to wireless routers and/or consumer devises • To passive POF wall jack in the future IEEE 802. 3 GEPOF Study Group 9
GEPOF use case 3: MDU applications Central Office/Head. End GI-POF ODN TDM 1: N MDU GEPOF ONT ports GEPOF RE/SW POF cable OLT 10 G EPON TDMA FTTB 20 km GEPOF RE/SW ONT POF cable MDU network 200 m FITH 50 m – 100 m • MUD ONT with GEPOF ports provide GE to multiple homes and/or apartment units over POF cable • GI-POF may be needed for MDU POF networks in order to achieve Gigabit rates with extended reach (further study) • GEPOF repeater/switch provide GE to in home SI-POF network IEEE 802. 3 GEPOF Study Group 10
POF transmission rate today • GEPOF technology is proven, Gigabit rate transmission on 50 m SI-POF demo product is available • Experiment of 5. 6 Gbps transmission on 50 m GI-POF is reported* *]Visani et. al. , Photon. Technol. Lett. , 23, 768 (2011) 11
POF for bandwidth growth 500 400 650 nm window Attenuation d. B/km 300 200 100 400 500 600 700 • The 650 nm red window can be used for GEPOF today • More low attenuation windows can be used in the future • GI-POF for multi-Gigabit home networking IEEE 802. 3 GEPOF Study Group 12
Summary • The advances of PON provide Gigabit and above services to the home • Home networking needs to keep up with the bandwidth for the next decades • POF is a promising physical medium to meet the home networking bandwidth growth today and in the future • POF also have advantages in the situation that EMI and RF interferences hard to correct • We have discussed 4 GEPOF use cases – – FTTH + FITH FTTH + FTTD FTTH MDU DOCSIS HFC home networking IEEE 802. 3 GEPOF Study Group 13
Thanks Eugene. dai@cox. com IEEE 802. 3 GEPOF Study Group 14
GEPOF use case 3: FTTH + FTTD Central Office/Head. End ODN POF cable TDM ONT 1: N GEPOF Switch OLT 10 G EPON TDMA ONT FTTH 20 km standard reach • 10 G EPON provides Gigabit service to the home • GEPOF switch provides P 2 P Gigabit Ethernet over in home POF network • Passive POF wall jack • GEPOF converters are integrated with consumer devices IEEE 802. 3 GEPOF Study Group FITH 50 m – 100 m TV with GEPOF interface GEPOF 15
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