1. Submission doc.: IEEE 802.15-15-0404-00-007a Kookmin University Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [Kookmin University Response to 15.7r1 CFA: OCC Application in Light house-to- Ship Communication] Date Submitted: [May, 2015] Source: [Yeong Min Jang*, Trang Nguyen*, Md. Shareef Ifthekhar*, Nam Tuan Le*, Chang Hyun Hong*, Mohammad Arif Hossain*, and Nirzhar Saha*] [Jaesang Cha**, Jonghyeok Lee**, Hyung-O Kim**, Minwoo Lee**] and [YounKwan Kim ***] [*Kookmin University] [**Seoul National University of Science & Technology] [***The Catholic University of Korea] Address [Kookmin University, Seoul, Korea] Voice:[82-2-910-5068], FAX: [82-2-910-5068], E-Mail:[yjang@kookmin.ac.kr] Re: [] Abstract: Purpose:Call for Application Response Notice:This document has been prepared to assist the IEEE P802.15. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. Release: The contributor acknowledges and accepts that this contribution becomes the property of IEEE and may be made publicly available by P802.15. Yeong Min Jang, Kookmin University May 2015

2. Submission doc.: IEEE 802.15-15-0404-00-007a Kookmin University May 2015 Slide 2 Kookmin University Response to 15.7r1 CFA: OCC Application in Light house-to-Ship Communication Yeong Min Jang yjang@kookmin.ac.kr

3. Submission doc.: IEEE 802.15-15-0404-00-007a Kookmin University Slide 3 May 2015 Contents  Scenario of Light house-to-ship using OCC  Challenging issues  Our demonstration  Other considerations  Conclusion

4. Submission doc.: IEEE 802.15-15-0404-00-007a Kookmin University Slide 4 May 2015 Scenario of Light house-to-ship using OCC Unidirectional OCC Lighthouse LED Driver module High power LED to blink data at far distance Data Rolling shutter camera with Zoom module Rolling shutter picture Asynchronous decoding Data Zoom module Far-distance of transmission required. Asynchronous communication scheme is needed.

5. Submission doc.: IEEE 802.15-15-0404-00-007a Kookmin University Slide 5 May 2015 Why using Zoom module without Zoomwith Zoom Experimental test Higher SNR can be achieved => more far distance of transmission

6. Submission doc.: IEEE 802.15-15-0404-00-007a Kookmin University Slide 6 May 2015 Challenging Issues Lighthouse transmitter Light tail (Reflection by water surface) Noise sources  Low SNR due to far-distance; Various noise resources  Light reflection and wave motion

7. Submission doc.: IEEE 802.15-15-0404-00-007a Kookmin University Slide 7 May 2015 Our Demonstration Zoom module Zoom module is required (instead of increasing power) to achieve far-distance transmission

8. Submission doc.: IEEE 802.15-15-0404-00-007a Kookmin University Slide 8 May 2015 802.15.7r1 (Various) Our demonstration  Achieved Distance: 100m (using Zoom)  Achieved Link rate: 120bps

9. Submission doc.: IEEE 802.15-15-0404-00-007a Kookmin University Slide 9 May 2015 Estimation of 1km transmission 1 km 100m 15cm x 15cm 12VDC/15W Real LED lamp Camera position Size: 1.5m x 1.5m LED panel: 1500W

10. Submission doc.: IEEE 802.15-15-0404-00-007a Kookmin University Slide 10 May 2015 Other considerations Variable FOV Light house Buoy  Link switching to get seamless link  Variable FOV to transmit variable range

11. Submission doc.: IEEE 802.15-15-0404-00-007a Kookmin University Slide 11 May 2015 802.15.7r1 (Various) Conclusion  Need PHY to support asynchronous communication for unidirectional system  Need to have a link switching functionality  Consider far-distance transmission (up to km distance) such as scenario of light house-to-camera.