CoAP Sensor Streaming Using Buffer Control
draft-jhjung-core-sensor-streaming-00

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Internet Draft                                           Joong H. Jung
Intended status: Standards Track                          Dong K. Choi
Expires: April 2019                                        Seok J. Koh
                                         Kyungpook National University
                                                      October 22, 2018

                CoAP Sensor Streaming Using Buffer Control
                 draft-jhjung-core-sensor-streaming-00.txt

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Jung et al.            Expires April 22, 2019                 [Page 1]
Internet-Draft  CoAP Sensor Streaming Using Buffer Control  October 2018

Abstract

   As the Internet of Things (IoT) technology grows with the development
   of wireless communication and sensors, many people are interested in
   Constrained Application Protocol (CoAP), which is the representative
   protocol of the IoT. In addition, attempts have been made to apply
   CoAP to sensors that support existing real-time streaming services.
   However, the CoAP is not suitable for services to support streaming
   services such as smart band and CCTV. To overcome this drawback,
   there is an extension called CoAP Observe, but streaming services
   using CoAP Observe imposes a load on the server, which is not
   suitable for environments where low power devices act as servers,
   such as data transfer between sensors and gateways. In this
   specification, we are considering the situation in which the sensor
   acts as a server, and in this environment, we define one mechanism to
   provide efficient streaming service.

Table of Contents

   1. Introduction ................................................ 2
      1.1. Background ............................................. 2
      1.2. Terminology ............................................ 2
      1.3. Overview of the proposed scheme ........................ 2
   2. The Buffer-Control Option ................................... 7
      2.1. Buffer-Control Option meaning in request ............... 7
      2.2. Buffer-Control Option meaning in a notification ........ 8
   3. Subject Side Operation ...................................... 8
      3.1. Register ............................................... 8
      3.2. Caching ................................................ 8
      3.3. Change the buffer size ................................. 9
      3.4. Unregister ............................................. 9
   4. Observer Side Operation ..................................... 9
      4.1. Register ............................................... 9
      4.2. Buffer Control ......................................... 9
      4.3. Reordering ............................................. 9
   5. Security consideration ..................................... 10
   6. IANA Considerations ........................................ 10
   7. References ................................................. 10
      7.1. Normative References .................................. 10
   Authors' Addresses ............................................ 10

Jung et al.            Expires April 22, 2019                 [Page 2]
Internet-Draft  CoAP Sensor Streaming Using Buffer Control  October 2018

1. Introduction

1.1. Background

   The Constrained Application Protocol (CoAP) is the most widely used
   protocol in constrained environments such as sensor networks. Along
   with the growth of the Internet of Things services (IoT), a variety
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