230 likes | 617 Views
The Future Direction of Optical Network - Convergent Broadband Network. Yung Jui (Ray) Chen Department of CSEE, UMBC ychen@umbc.edu. Outline. Category of Optical Networks Three enlightening references The three pillars of covergent networks. The Three Horsemen of Optical Networks.
E N D
The Future Direction of Optical Network - Convergent Broadband Network Yung Jui (Ray) Chen Department of CSEE, UMBC ychen@umbc.edu
Outline • Category of Optical Networks • Three enlightening references • The three pillars of covergent networks p2 - 22
The Three Horsemen of Optical Networks • Transport areas • Long Haul and Metro Networks • Access areas • Metro and access networks • Local areas • FTTX, Personal area networks The driving force is applications The challengeis bandwidth p3 - 22
Transport Areas (where the advanced technologies first developed)) • Large Capacity • TDM: 20 to 40 Gbps • WDM: 50 GHz channel spacing • Spectral efficiency: >100Gbps/50GHz • Modulation format • Long distance transmission (> 1000km) • Fiber transport impairments (chromatic dispersion, polarization dispersion, nonlinearity) • Signal-noise ratio, amplifier noise, amplifier equalization • FEC chipSampled coherent detection p4 - 22
* 10,000 3000 1000 Systems Research Experiments * 300 100 30 Capacity (Gb/s) 10 3 Single Channel (ETDM) Multi-Channel (WDM) Single Channel (OTDM) WDM + OTDM WDM + Polarization Mux 1 0.3 0.1 * • Courtesy: • Chraplyvy • Herwig Kogelnik Soliton WDM 0.03 04 80 88 92 94 96 98 00 02 82 84 86 90 Year LIGHTWAVE TRANSMISSION CAPACITY p5 - 22
Digital Signal Processing The Continuation of OpticMoore’s Law TDM+WDM +CD Capacity (Gb/s) 1,000,000 10,000 TDM+WDM 100 TDM 1 82 88 92 98 02 08 Year p6 - 22
Three Enlightening References • CH Lee 2009 CLEO-PR talk on WDM-PON • GK Chang 2009 Asian Pacific Microwave Photonics Conference talk on wireless-optics convergence • Our group’s UMBC 100G workshop discussion material on coherent optical detection p7 - 22
Reference 1 p8 - 22
Application Network Is Moving Toward DWDM Prof. C.H. Lee, CLEO-PR 2009 p10 - 22
Reference 2 p11 - 22
60 GHz CMOS Wireless Transceiver patch antenna 2 mm 90 nm CMOS IC 1 cm p12 - 22
60 GHz Wireless Communications Systems: Emerging Commercial Applications 13 1) Peer to Peer Wireless Dataand HD-video Initial deployment: 2009 Led by ECMA 387 TC48 TG12/ISO Standardization for global information Technology and consumer electronics 2) PC Connectivity, Wireless Docking WPAN and HD-video 2010 Next Gen mmW Systems (NGMS) led by Intel/Microsoft/Apple 3) HD-Wireless W-HDMI 2011 Led by ECMA, NGMS, WHD NLOS From Joy Laskar, Georgia Tech-GEDC 100 mW @ 3 Gbps up to 10 Gbps up to 10 Gbps 13 p13 - 22
Reference 3 p14 - 22
applications transport applications Slide from Prof. G. K. Chang End-to-End Broadband Networking p17 - 22
Broadband Network Convergence In applicationsConvergenceof Voice, Data, Video and Interactive Multimedia Services In transport areasConvergenceof DWDM Metro and Wide Area Long-haul Networks In access areasConvergenceof Broadband Wireless and Wired Access Networks In local areasConvergenceof In-building and Personal Area Networks p18 - 22
IP IP IP X IP WSS X WSS X IP OTN WSS X WSS X WSS Transport Network Functionality Sharing of transceiver resources Optical protection All-optical mesh restoration • Regen. /wave. conversion X WSS Shan Zhong FiO 2009 p19 - 22
Wired-Wireless Access Network Convergence 10Mb/s --- 100Mb/s 274 Mb/s 1Gb/s --- 10Gb/s 10-Kmover fiber 200-Km over air 200-Km over fiber 10-m over air WiFi 2.4GHz (802.11b/g) 5GHz (802.11a) WiMAX 2.5, 3.5GHz 10, 26GHz DoD Ku-band 11-18 GHz Capacity Data Rate Mobility Next Generation Integrated Optical and Wireless Access Networks millimeter-wave LTE 700MHz MVDS 40GHz MBS 60GHz 70-90GHz Wireless MMDS LMDS 2-3GHz 26-29GHz Frequency TDM-PON WDM PON GPON 2.5Gb/s Wireline EPON BPON 1.25Gb/s Copper 622Mb/s Optical APON ADSL/ Cable 155Mb/s Time <10Mb/s MMDS: multichannel multipoint distribution service, LMDS: local multi-point distribution service MVDS: microwave video distribution system, MBS: mobile broadband system p20 - 22
What is the Challenge for Convergent Network It is bandwidth, Stupid! p21 - 22
The Three Pillars of Convergent Network • Coherent detection – to increase the bandwidth • Optical CPU Wavelength Selective Switch) – to manage the wavelength • Intelligent network control and management (packet transport network) p22 - 22