Publish-subscribe (pub-sub) has been recognized as a common communication pattern in IoT applications. In this paper we present ndnBMS-PS, a distributed pub-sub communication framework for building management systems (BMS), an important area of IoT, over the Named Data Networking (NDN) architecture. ndnBMS-PS utilizes distributed NDN repositories to store and republish large quantities of BMS data that can be consumed by different applications. It employs a data synchronization mechanism to aggregate multiple data streams published by multiple sensing devices and achieve efficient notification of new data for the consumers. ndnBMS-PS also provides data authentication by utilizing NDN's security building blocks. This design exercise demonstrates that the information-centric architecture enables a simple design for complex IoT systems and provides superior system efficiency and security over TCP/IP-based alternatives.

This poster presents a consistent replication protocol natively designed for NDN. This protocol can serve as a basic building block for designing consistent data replication, distributed lock service and other fault tolerant system over NDN networks. It also removes the burdens of implementing complex and error-prone logic of maintaining consistency from applications and greatly simplifies the design and implementation of distributed applications over NDN.

Recently, Information Centric Networking (ICN) has attracted much attention also for mobiles. Unlike host-based communication models, ICN promotes data names as the first-class citizen in the network. However, the current ICN name-based routing requires Interests be routed by name to the nearest replica, implying the Interests are flooded in VANET. This introduces large overhead and consequently degrades wireless network performance. In order to maintain the efficiency of ICN implementation in VANET, we propose an opportunistic geo-inspired content based routing method. Our method utilizes the last encounter information of each node to infer the locations of content holders. With this information, the Interests can be geo-routed instead of being flooded to reduce the congestion level of the entire network. The simulation results show that our proposed method reduces the scope of flooding to less than two hops and improves retrieval rate by 1.42 times over flooding-based methods.

The current Internet is challenged by the IPv4 address depletion. The stateless IPv4/IPv6 translation technology (IVI) is proposed to facilitate IPv4/IPv6 coexistence and transition. The IVI protocol translation involves the address mapping between IPv4 and IPv6, but the address mapping rules still rely on static configuration. In this paper, we propose an IVI-based locator/id separation architecture for IPv4/IPv6 transition. The new architecture provides a scalable address mapping mechanism and extends IVI to support inter-domain networking and host mobility. Through the deployment of this architecture, the Internet would eventually evolve into a pure IPv6 backbone while the IPv4 layer would be separated from the IPv6 network via protocol translation.