1. doc.: 11-10-0011-00-00ad Submission January 2010 J. Guillory, S. Meyer & B. Charbonnier, Orange LabsSlide 1 Radio over Fiber for an optimal 60 GHz Home Area Network Date: 2010-01-07 Authors / Contacts:

2. doc.: 11-10-0011-00-00ad Submission 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 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 January 2010 J. Guillory, S. Meyer & B. Charbonnier, Orange LabsSlide 2 Contents

3. doc.: 11-10-0011-00-00ad Submission January 2010 J. Guillory, S. Meyer & B. Charbonnier, Orange LabsSlide 3 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 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 …

4. doc.: 11-10-0011-00-00ad Submission January 2010 J. Guillory, S. Meyer & B. Charbonnier, Orange LabsSlide 4 Radio over Fiber in the Home Area Network Workspace bedroom Children’s bedroom Parent’s Kitchen Living-room Garage Laptop and Phone Computer and NAS Television and Games console We need high rates in the whole home because the devices and our home gateway are not necessary in the same room. Home Gateway

5. doc.: 11-10-0011-00-00ad Submission January 2010 J. Guillory, S. Meyer & B. Charbonnier, Orange LabsSlide 5 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 ?

6. doc.: 11-10-0011-00-00ad Submission Workspace bedroom Children’s bedroom Parent’s Kitchen Living-room Garage January 2010 J. Guillory, S. Meyer & B. Charbonnier, Orange LabsSlide 6 Two optical fibers (downlink and uplink). We transport radio signals in their native format (analogue) on an optical carrier Remote antenna : converted electrical signal (radio) to optical signal, and vice-versa Radio over Fiber in the Home Area Network

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

8. doc.: 11-10-0011-00-00ad Submission January 2010 J. Guillory, S. Meyer & B. Charbonnier, Orange LabsSlide 8 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.

9. doc.: 11-10-0011-00-00ad Submission January 2010 J. Guillory, S. Meyer & B. Charbonnier, Orange LabsSlide 9 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).

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

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

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

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

14. doc.: 11-10-0011-00-00ad Submission January 2010 J. Guillory, S. Meyer & B. Charbonnier, Orange LabsSlide 14 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

15. doc.: 11-10-0011-00-00ad Submission Splitter Gateway + ONT Workspace bedroom Children’s bedroom Parent’s Kitchen Living-room Garage January 2010 J. Guillory, S. Meyer & B. Charbonnier, Orange LabsSlide 15 Setup and results Optical splitter ( 8x8 = 9dB ) It behaves as an optical tunnel

16. doc.: 11-10-0011-00-00ad Submission January 2010 J. Guillory, S. Meyer & B. Charbonnier, Orange LabsSlide 16 Setup and results SNR at radio receiver versus distance on the first and second hop in free space (Optical loss = 11 dB) Simulation at f = 66GHz 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)

17. doc.: 11-10-0011-00-00ad Submission January 2010 J. Guillory, S. Meyer & B. Charbonnier, Orange LabsSlide 17 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

18. doc.: 11-10-0011-00-00ad Submission January 2010 Splitter Gateway + ONT Workspace bedroom Children’s bedroom Parent’s Kitchen Living-room Garage Laser ON MAC monitoring Signal Signal Noise 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. Slide 18J. Guillory, S. Meyer & B. Charbonnier, Orange Labs

19. doc.: 11-10-0011-00-00ad Submission January 2010 J. Guillory, S. Meyer & B. Charbonnier, Orange LabsSlide 19 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. Using the radio MAC layer for driving the optical infrastructure

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

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

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

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

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

25. doc.: 11-10-0011-00-00ad Submission January 2010 J. Guillory, S. Meyer & B. Charbonnier, Orange LabsSlide 25 X LNA HLNAV-386 G = 18 dB NF = 5.5 dB HBM15X-208 Insertion loss = 8.5 dB HGV54.5551515-I 57 < F RF < 66 GHz 3 < F FI < 12 GHz 3X Mini-Circuit ZX60-14012L-S+ Gunit = 12 dB P1dB = 8 dBm NFunit = 6 dB CAG2 LNA HPA -60.6 <P< -10.7 dBm -42.6 <P< 7.8 dBm -51.1 <P< -0.7 dBm -45.1 <P< -23.7 dBm P = -39.5 dBm P = -3.5 dBm X HBUC15X-073 Insertion loss = 9 dB HGV54.5571815-I HPA HHPAV-331 G = 20 dB P1dB = 15 dBm NF = 8 57 < F RF < 66 GHz P = -14.25 dBmP = 5.75 dBm P = -5.25 dBm RoF P = -6.5 dBm /2 Vers détecteur CAG1 RoF link with FINISAR laser and photodiode (TOSA HFE6X92-X61 and ROSA HFD6X80-418) : G RoF = 1.25 dB / NF = 49 dB / G opt = -2.5 dB Optical loss = ~9 dB An experimental setup and the results

26. doc.: 11-10-0011-00-00ad Submission January 2010 J. Guillory, S. Meyer & B. Charbonnier, Orange LabsSlide 26 An experimental setup and the results SNR at radio receiver versus optical loss, and distance on the first and second bond in free space. New results New amplifier after the photodiode (G = 12 dB / NF = 6 dB) Photodiode in différentiel mode + Balun