CoAP协议研究  

Research on CoAP

作　　者：刘紫青[1,2] 程燕[2] 关联 桑梓勤[2] 郝俊瑞[2] 

机构地区：[1]武汉邮电科学研究院,湖北武汉430074 [2]光纤通信技术和网络国家重点实验室,湖北武汉430074

出　　处：《电视技术》2013年第7期192-196,共5页Video Engineering

基　　金：武汉智慧城市重大科技项目(201012411664-1);国家"863"计划项目(2011AA010501)

摘　　要：针对某些M2M应用中存在网络和节点资源受限的情况,不适用HTTP,介绍和分析了受限应用协议CoAP(ConstrainedApplication Protocol)的特点及其与HTTP的映射,并将CoAP和HTTP进行对比研究,发现CoAP简单、开销小,能很好地满足资源受限环境的应用层通信需求。For some M2M applications, there exists problems of constrained networks and nodes, and the HTTP isn＇t applicable. The Constrained Ap- plication Protocol （CoAP） is described and analyzed in this paper, and the mapping between CoAP and HTTP is also included. Then, the comparison of the two protocols is researched. Finally, it can be concluded that CoAP is simple and its overhead is very low, which can well meet the application layer＇ s communications requirements in the constrained environment.

关 键 词：物联网 CoAP 受限环境 HTTP映射 

分 类 号：TN915.5[电子电信—通信与信息系统]