International Journal of Advanced Technology and Engineering Exploration, Vol 5(48) ISSN (Print): 2394-5443 ISSN (Online): 2394-7454 http://dx.doi.org/10.19101/IJATEE.2018.547014 445 Data delivery techniques in content centric routing for IoT: a systematic review Pooja Patel 1* , Hiren B. Patel 2 and Bela Shrimali 3 M.Tech Student, Department of Computer Science, LDRP Institute of Technology, Affiliated Under Kadi Sarva Vidyalaya, India 1 Professor and HOD, Department of Computer Science, LDRP-Institute of Technology and Research, Gandhinagar, India 2 Assistant Professor, Department of Computer Science, LDRP-Institute of Technology and Research, Gandhinagar, India 3 ©2018 ACCENTS 1.Introduction IoT is a network of communication in which physical devices are connected to each other through the internet where they share data that can be accessed anywhere at any time [1]. Wireless sensors networks (WSNs) are considered to be the most important element of the IoT. It plays an important role to support the communication between user devices and large-scale resource-constrained devices such as sensors and other smart devices. Some of the applications such as smart building monitoring, healthcare, environmental monitoring, production control, security and surveillance applications. Traditional routing protocols aimed to support host to host communications among nodes that are distinguished by an IP address fails in a distributed wireless network as a result of frequently changing network topology generated through mobility of node and regular link failure. Moreover, IoTs comprises of heterogeneous devices and most of these devices are small, low power with a limited memory, low cost, and constraint-oriented wireless sensors. *Author for correspondence Data is not available most of the time, due to low memory and low battery lifetime. To overcome the problem, the CCN paradigm is used which rely on content-based forwarding and in- network caching for sending the packet data in the wireless network, which significantly saves the energy and bandwidth, reduces network latency and extends the network lifetime in a resource- constrained IoT network environment. The main features of CCN in the wireless environment are discussed below: First, user mobility is inherently maintained in CCN: when a user moves from one place to another, it issues any Interest that is not satisfied again from the new location. Provider mobility also needs updates of the routing table, but CCN intrinsically promotes multi-sourcing the content [2]. In CCN, mobility can be provided using Publish-Subscribe model, through which any mobile node subscribes the network for the information it needs and the publisher advertises the availability of information to the network [3]. Hence, the CCN Mobility support can play an important role in vehicular ad-hoc network (VANET) and mobile ad-hoc network (MANET) applications. Review Article Abstract Internet of Things (IoT) connects a number of devices that share data through the internet. Communication between these devices causes a large amount of data in the network that creates a lot of traffic. In order to manage the traffic, the concept of content-centric networking (CCN) is introduced and identified as an effective network model for efficient data delivery in a wireless sensor network. CCN determines routing path based on the content. In this paper, we discuss the CCN architecture and its packet forwarding mechanisms. Also, we provide a review of different techniques of CCN covering naming schemes, architecture and the parameters evaluated and discussed in recent state-of-an-art. This review analysis may help the new researchers to go in-depth in the domain of CCN. Keywords IoT, CCN, Naming, Architecture, Message, Routing.