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January 2010

January 2010. Radio over Fiber for an optimal 60 GHz Home Area Network. Date: 2010-01-07. Authors / Contacts:. Slide 1. J. Guillory, S. Meyer & B. Charbonnier, Orange Labs. Contents. Radio over Fiber in the Home Area Network An example of optical architecture: multipoint-to-multipoint

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January 2010

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  1. January 2010 Radio over Fiber for an optimal 60 GHzHome Area Network Date: 2010-01-07 Authors / Contacts: Slide 1 J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

  2. Contents • Radio over Fiber in the Home Area Network • An example of optical architecture: multipoint-to-multipoint • Experimental setup and results • Using the radio MAC layer for driving the optical infrastructure • Radio over Fiber in the Home Area Network • An example of optical architecture: multipoint-to-multipoint • Experimental setup and results • Using the radio MAC layer for driving the optical infrastructure J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

  3. The number of connected devices in the home increases , The rates necessary between each of them increase too. The ultimate goal in home network, and for a provider of telecommuni-cations like Orange, is to satisfy the demand made by this new services like remote backup, video conference, video on demand, voice over IP, data exchange in high-definition … Radio over Fiber in the Home Area Network J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

  4. Radio over Fiber in the Home Area Network • We need high rates in the whole home because the devices and our home gateway are not necessary in the same room. Workspace Computer and NAS Children’s Parent’s bedroom bedroom HomeGateway Garage Laptop and Phone Living-room Kitchen Television and Games console J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

  5. The wireless connectivity is generally preferred for the final link to the device (easy to use and very flexible). In the future, IEEE 802.11.ad will be the radio standard to transport data at very high throughputs (above 1Gbps), But, this radio standard has a short range (less than 10m). Radio over Fiber in the Home Area Network How can we enlarge the coverage of the radio signal ? J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

  6. Remote antenna : converted electrical signal (radio) to optical signal, and vice-versa Two optical fibers (downlink and uplink). We transport radio signals in their native format (analogue) on an optical carrier January 2010 Radio over Fiber in the Home Area Network Workspace Garage Kitchen Living-room Children’s Parent’s bedroom bedroom Slide 6 J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

  7. Radio over Fiber in the Home Area Network So, the Radio over Fiber system enlarges the coverage of the radio signal itself. It consists in transporting the radio signal from wireless devices onto an optical carrier for distribution over optical fibre to different remote antennas. The optical link acts as an analogue repeater. Transporting the radio signals in their native format, provides the advantage of remote antenna simplification and transparency to radio layer protocols. January 2010 Optical In Photodiode Direct modulation issimple and low cost. TX A DC antenna DC Block The remote antenna has small size, light weight and low power consumption. Bias Tee RX TEE A antenna Laser RF Filter Optical Out Automatic Gain Control Slide 7 J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

  8. Why optical fibers ? Only the fiber optic can enlarge the coverage of radio signal transparently. It offers a very high bandwidth and low attenuation, thus can transfer the high rate of the radio over several hundred meters. It will be a natural extension of access networks (Fiber To The Home). It is the ideal candidate to provide long life-span local networks. Radio over Fiber in the Home Area Network J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

  9. Besides, the Radio over Fiber optimizes the global spectral efficiency. Indeed, power is radiated only in the spot (room) where it is useful. We have a full control of the range of radio wave (no trouble of the radio signals of neighbours, health and hacking concerns). Radio over Fiber in the Home Area Network J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

  10. Radio over Fiber in the Home Area Network An example of optical architecture: multipoint-to-multipoint Experimental setup and results Using the MAC layer for driving the optical infrastructure Contents J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

  11. Workspace Garage Gateway + ONT Kitchen Living-room NxN Splitter An example of optical architecture:multipoint-to-multipoint Two optical fibers Power is radiated only in the spot where it is useful (Space) and when it is necessary (Moment). Children’s Parent’s bedroom bedroom Fiber To The Home J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

  12. RoF 1 RoF 1 RoF 1 RoF 2 RoF 2 RoF 2 RoF 3 RoF 3 RoF 3 RoF 4 RoF 4 RoF 4 An example of optical architecture:multipoint-to-multipoint Remote antenna without intelligence RoF 1 RoF 2 Is equivalent to RoF 3 RoF 4 Gateway + ONT NxN Splitter Wireless device with radio chipset J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

  13. Main advantages / disadvantages : Self-sufficient system: the distribution of resources managed by the radio MAC layer. No intelligence required: direct communication possible. Optical budget should allow the NxN optical splitter (16x16 = 12dB). Two optical fibers required per remote antenna. An example of optical architecture:multipoint-to-multipoint J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

  14. The Radio over Fiber in the Home Area Network An example of optical architecture: multipoint-to-multipoint Experimental setup and results Using the radio MAC layer for driving the optical infrastructure Contents J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

  15. Experimental setup and results Workspace Garage Gateway + ONT Living-room Kitchen Splitter Parent’s Children’s bedroom bedroom Optical splitter ( 8x8 = 9dB ) It behaves as an optical tunnel J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

  16. Experimental setup and results What is the necessary Signal to Noise Ratio to have when a device receive the radio signal ? OFDM QPSK : 2 Gbps and BER of 10-11 → 6.5 dB. OFDM 16QAM : 2 Gbps and BER of 10-11 → 13 dB. SCBT : no data about the required SNR. (ECMA 387 / 57-66GHz radio standard) SNR at radio receiver versus distance on the first and second hop in free space (Optical loss = 11 dB) Simulation at f = 66GHz J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

  17. The Radio over Fiber in the Home Area Network An example of optical architecture: multipoint-to-multipoint Experimental setup and results Using the radio MAC layer for driving the optical infrastructure Contents J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

  18. Using the radio MAC layer for driving the optical infrastructure • The lasers that are turned-on without seeing radio data at the input, are noise for the photodiodes that receive an optical signal from another laser (copy of the ambient noise by adding the noise of the conversions). • Interferences : beat between independent light sources. Noise Workspace Laser ON Signal MAC monitoring Signal Parent’s Children’s Noise bedroom bedroom Garage Gateway + ONT Kitchen Living-room Splitter Noise J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

  19. Using the radio MAC layer for driving the optical infrastructure • Bridge : MAC  Monitoring signal. • Only one of the device (e.g. the gateway) demodulates the radio signal, • Recovers useful data in the radio MAC layer to manage the optical access (turning-on laser or photodiode), • Sends instruction to remote antenna by a monitoring signal. J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

  20. We have shown the feasibility of a wireless network inside the home with Radio over Fiber for extending the radio coverage. Then, the Radio over Fiber optimizes the global spectral efficiency. The optical architectures show good results, and need information from radio MAC Layer to be managed. Conclusion J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

  21. Questions to the group What do you think about the concept of Radio over Fiber ? Do you think it is an interesting concept ? Do you think it is in the scope of 802.11ad standard ? Some comments ? January 2010 Slide 21 J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

  22. Thank you J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

  23. [1] Ultra Broad Band Wireless Home Network based on 60GHz WPANs cells interconnected via RoF M.Huchard, M.Weiss, A.Pizzinat, S.Meyer, P.Guignard, B.Charbonnier Invited paper IEEE Journal of Lightwave Technology [2] Ultra Wide Band over fibre transparent architecture for high bit-rate home networks A.Pizzinat, F.Payoux, B.Charbonnier, S.Meyer Springer Annals of telecommunication Journal (Special Issue on Home Networking) [3] RNRT/BILBAO project: first results on Ultra Wide Band over fiber S.Paquelet, S.Mallegol, G.Froc, A.Bisiaux, A.Pizzinat, B.Charbonnier, N.Malhouroux, S.Meyer, F.Payoux, I.Siaud, G.Salingue, D.Morche, H.Jacquinot, S.Bories, C.Algani, AL.Billabert, S.Mazer, JL.Polleux, C.Rumelhard, M.Terré, C.Sillans, Y.Le Guennec, B.Cabon, M.Lourdiane, G.Maury International UWB Workshop 2007, Grenoble, France. [4] Ultra Wide Band Home Networks by Means of a Low Cost Radio-over-MultiMode-Fibre Transparent System A.Pizzinat, I.Louriki, B.Charbonnier, S.Meyer, C.Sillans, H.Jaquinot, S.Bories, M.Terré, C.Algani, AL.Billabert, Y.Le Guennec, P.Lombard, G.Froc Network and Optical Communications 2008, Krems (Austria), 1-3 July 2008 [5] Optical fiber infrastructures for UWB access and FTTH B.Cabon, Y.Le Guennec, P.Lombard, M.Lourdiane, JM.Duchamp, A.Pizzinat, I.Louriki, B.Charbonnier, F.Payoux, S.Meyer, M.Terré, C.Algani, AL.Billabert, C.Sillans, H.Jaquinot, S.bories, G.Froc ISIS workshop, Stokholm, June 2008 [6] Low Cost Transparent Radio-over-Fibre System for UWB Based Home Network A.Pizzinat, I.Louriki, B.Charbonnier, F.Payoux, S.Meyer, M.Terré, C.Algani, AL.Billabert, C.Sillans, H.Jaquinot, S.Bories, Y.Le Guennec, G.Froc European Conference on Optical Communications 2008, Bruxelles 21-25 Sept. 2008 References J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

  24. Appendix January 2010 Slide 24 J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

  25. An experimental setup and the results HHPAV-331 G = 20 dB P1dB = 15 dBm NF = 8 3X Mini-Circuit ZX60-14012L-S+ Gunit = 12 dB P1dB = 8 dBm NFunit = 6 dB LNA HLNAV-386 G = 18 dB NF = 5.5 dB Vers détecteur HBUC15X-073 Insertion loss = 9 dB HBM15X-208 Insertion loss = 8.5 dB X RoF X /2 HPA HPA CAG2 HPA CAG1 HPA LNA P = -6.5 dBm P = -5.25 dBm P = -14.25 dBm P = 5.75 dBm -51.1 <P< -0.7 dBm P = -3.5 dBm -60.6 <P< -10.7 dBm -42.6 <P< 7.8 dBm -45.1 <P< -23.7 dBm P = -39.5 dBm HGV54.5571815-I HGV54.5551515-I 57 < FRF < 66 GHz 57 < FRF < 66 GHz 3 < FFI < 12 GHz January 2010 Optical loss = ~9 dB RoF link with FINISAR laser and photodiode(TOSA HFE6X92-X61 and ROSA HFD6X80-418) :GRoF = 1.25 dB / NF = 49 dB / Gopt = -2.5 dB Slide 25 J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

  26. An experimental setup and the results January 2010 SNR at RX input for input P = 15 dBm 1 d B 20 18 8x8 Optical SNRmin 2Gbps splitter loss OFDM-16QAM 16 New results 14 12 SNR, dB SNRmin 2Gbps 10 New amplifier after the photodiode(G = 12 dB / NF = 6 dB) Photodiode in différentiel mode+ Balun OFDM-QPSK 8 6 10m + 10m 5m + 5m 4 10m + 5m 5m + 10m 2 0 2 4 6 8 10 12 14 16 Optical loss, dB SNR at radio receiver versus optical loss, and distance on the first and second bond in free space. Slide 26 J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

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