January 2010 doc.: 11-10-0011-00-00ad Radio over Fiber for an optimal

January 2010 doc.: 11-10-0011-00-00ad Radio over Fiber for an optimal 60 GHz Home Area Network Date: 2010-01-07 Authors / Contacts: Name Company Address Joffray Guillory Orange Labs 2, avenue Pierre Marzin 22307 Lannion Cedex, France Sylvain Meyer Orange Labs 2, avenue Pierre Marzin 22307 Lannion Cedex, France Benoît Charbonnier Orange Labs 2, avenue Pierre Marzin 22307 Lannion Cedex, France Thomas Derham Orange Labs Sandrine Roblot Orange Labs Submission Keio Shinjuku Oiwake Bldg.9F.3-1-13 Shinjuku Shinjuku-kuTokyo 160-0022 JAPAN 4, rue du clos courtel 35512 Cesson-Sevigne, France Slide 1 Phone email [email protected] [email protected] [email protected] [email protected] [email protected] J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

January 2010 doc.: 11-10-0011-00-00ad Contents Radio over Fiber in the Home Area Network An example of optical architecture: multipoint-to-multipoint Setup and results Using the radio MAC layer for driving the optical infrastructure Submission Slide 2 J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

January 2010 doc.: 11-10-0011-00-00ad Radio over Fiber in the Home Area Network 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 telecommunications 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 Submission Slide 3 J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

January 2010 doc.: 11-10-0011-00-00ad 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. Wo ace p s rk Computer and NAS Parent’s bedroom Children’s bedroom Kitchen Submission Livingroom Laptop and Phone Television and Games console Slide 4 Garage Home Gateway J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

January 2010 doc.: 11-10-0011-00-00ad Radio over Fiber in the Home Area Network 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). How can we enlarge the coverage of the radio signal ? Submission Slide 5 J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

January 2010 doc.: 11-10-0011-00-00ad Radio over Fiber in the Home Area Network Children’s bedroom Garage Livingroom Kitchen Parent’s bedroom Wo ace p s rk 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 Submission Slide 6 J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

January 2010 doc.: 11-10-0011-00-00ad 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. Optical In Photodiode DC TX A antenna DC Block Bias Tee TEE Laser Optical Out Submission A RX antenna Direct modulation is simple and low cost. The remote antenna has small size, light weight and low power consumption. RF Filter Automatic Gain Control Slide 7 J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

January 2010 doc.: 11-10-0011-00-00ad Radio over Fiber in the Home Area Network 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. Submission Slide 8 J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

January 2010 doc.: 11-10-0011-00-00ad Radio over Fiber in the Home Area Network 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). Submission Slide 9 J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

January 2010 doc.: 11-10-0011-00-00ad Contents Radio over Fiber in the Home Area Network An example of optical architecture: multipoint-to-multipoint Setup and results Using the MAC layer for driving the optical infrastructure Submission Slide 10 J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

January 2010 doc.: 11-10-0011-00-00ad An example of optical architecture: multipoint-to-multipoint Wo pa s k r ce Two optical fibers Parent’s bedroom Children’s bedroom Livingroom Kitchen Power is radiated only in the spot where it is useful (Space) and when it is necessary (Moment). Garage Gateway ONT NxN Splitter Fiber To The Home Submission Slide 11 J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

January 2010 doc.: 11-10-0011-00-00ad An example of optical architecture: multipoint-to-multipoint Remote antenna without intelligence RoF 1 RoF 1 RoF 2 RoF 2 Is equivalent to RoF 3 RoF 3 RoF 4 RoF 4 NxN Gateway Splitter ONT Wireless device with radio chipset Submission Slide 12 J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

January 2010 doc.: 11-10-0011-00-00ad An example of optical architecture: multipoint-to-multipoint 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. Submission Slide 13 J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

January 2010 doc.: 11-10-0011-00-00ad Contents The Radio over Fiber in the Home Area Network An example of optical architecture: multipoint-to-multipoint Setup and results Using the radio MAC layer for driving the optical infrastructure Submission Slide 14 J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

January 2010 doc.: 11-10-0011-00-00ad Setup and results ce Children’s bedroom Garage Livingroom Kitchen Parent’s bedroom Wo pa s k r Gateway ONT Splitter Optical splitter ( 8x8 9dB ) It behaves as an optical tunnel Submission Slide 15 J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

January 2010 doc.: 11-10-0011-00-00ad 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 Submission Slide 16 J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

January 2010 doc.: 11-10-0011-00-00ad Contents The Radio over Fiber in the Home Area Network An example of optical architecture: multipoint-to-multipoint Setup and results Using the radio MAC layer for driving the optical infrastructure Submission Slide 17 J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

January 2010 doc.: 11-10-0011-00-00ad 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. Wo pa r ks ce No i se Parent’s bedroom Kitchen MAC monitoring Signal Noise Livingroom Submission Signal Children’s bedroom Laser ON Slide 18 Garage Gateway ONT Splitter Noise J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

January 2010 doc.: 11-10-0011-00-00ad 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. Submission Slide 19 J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

January 2010 doc.: 11-10-0011-00-00ad Conclusion 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. Submission Slide 20 J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

January 2010 doc.: 11-10-0011-00-00ad 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 ? Submission Slide 21 J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

January 2010 doc.: 11-10-0011-00-00ad Thank you Submission Slide 22 J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

January 2010 doc.: 11-10-0011-00-00ad References [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 Submission Slide 23 J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

January 2010 doc.: 11-10-0011-00-00ad Appendix Submission Slide 24 J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

January 2010 doc.: 11-10-0011-00-00ad An experimental setup and the results LNA HLNAV-386 G 18 dB NF 5.5 dB 3X Mini-Circuit ZX60-14012L-S Gunit 12 dB P1dB 8 dBm Vers NFunit 6 dB détecteu r HBM15X-208 Insertion loss 8.5 dB CAG2 CAG1 X LNA HPA HPA HPA /2 HBUC15X-073 Insertion loss 9 dB RoF P -6.5 dBm -60.6 P -10.7 dBm -42.6 P 7.8 dBm -51.1 P -0.7 dBm HGV54.5551515-I 57 FRF 66 GHz -45.1 P -23.7 dBm P -3.5 dBm P -39.5 dBm Optical loss 9 dB X P -5.25 dBm HHPAV-331 G 20 dB P1dB 15 dBm NF 8 HPA P -14.25 dBm P 5.75 dBm HGV54.5571815-I 57 FRF 66 GHz 3 FFI 12 GHz 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 Submission Slide 25 J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

January 2010 doc.: 11-10-0011-00-00ad An experimental setup and the results SNR at RX input for input P 1dB 15 dBm 20 18 16 8x8 Optical splitter loss SNRmin 2Gbps OFDM-16QAM New results SNR, dB 14 12 SNRmin 2Gbps OFDM-QPSK 10 New amplifier after the photodiode (G 12 dB / NF 6 dB) 8 6 4 2 Photodiode in différentiel mode Balun 10m 10m 5m 5m 10m 5m 5m 10m 0 2 4 6 8 10 Optical loss, dB 12 14 16 SNR at radio receiver versus optical loss, and distance on the first and second bond in free space. Submission Slide 26 J. Guillory, S. Meyer & B. Charbonnier, Orange Labs