March 2017 Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title : Considerations for long range efficient vehicular communications using OCC Date Submitted : [Jan, 2018] Source : Moh. Khalid Hasan, Mostafa Zaman Chowdhury, Md. Tanvir Hossan, Md. Shahjalal and Yeong Min Jang Company : [Kookmin University] Address : [Seoul, Korea] Voice : [+82-2-910-5068], E-Mail: [yjang@kookmin.ac.kr] Re : Abstract : This document discusses about considerations for long range efficient vehicular communications using OCC. Purpose : To evaluate the necessity of long range vehicular communications using OCC. 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. Slide 1 Submission

Introduction Currently, users of wireless communication-based optical spectrum has been increasing rapidly as this spectrum has the potential to address challenges of directional optical transmission in several application fields. As cars in our present era has very high mobility, long range vehicular communications has become an open challenge in intelligent transport systems to avoid collision between cars and other unwanted accidents. Different technologies used for intelligent transport system has limitation in their corresponding cases. Such as, long distance RF results in higher interferences. Optical camera communications are being used for long distance communications and can provide more secure and reliable communication.

Technical Requirements Transmitter Requirements: Optimized irradiation pattern of LED light source. Narrow angle emission pattern. Use of multi-hop transmissions Receiver requirements: Optimal placement of road side units. Enhanced focal length of camera Broader field of view and high resolution image sensor

Challenges High data rate Interference from sunlight plus other light sources Reliable operation in all lighting and environmental conditions (day/night, fog, rain…) High speed vehicle detection and high mobility support. Successful detection of desired car LED to communicate Flickering free optical channel Congruous cost support

Conclusion As most of the vehicles in modern era can provide high mobility performance, long range can be considered very important issue in case of vehicular communications. With the increasing development of high resolution image sensor based cameras, OCC can bring a new dimension in terms of long range vehicular communications. OCC can be implemented in existing infrastructures, so it is more feasible considering recent environment of ITS.