Original Named Data Networking Research Articles

An efficient scheme for in-orbit remote sensing image data retrieval

The conflict between real-time retrieval of remote sensing image data (RSID) and the limited satellite network transmission resources is becoming more and more prominent. To address it, this paper proposes a novel scheme for RSID retrieval from the remote sensing satellite network, which exploits the spatio-temporal characterization (STC) of sensing images to improve data retrieval efficiency. In particular, based on the spatio-temporal characterization, a data content naming scheme is introduced and an algorithm is accordingly proposed for RSID segmentation in satellite nodes. With the naming scheme, RSID retrieval can be implemented by making use of the Named Data Networking (NDN) architecture. The study aims to investigate the effectiveness of making use of the STC of RSID for the retrieval under the NDN architecture. To the best of our knowledge, this paper is the first to exploit STC to establish connections between user demands, RSID, and data naming for NDN. As a result, the proposed scheme makes the network aware of RSID’s STC and consequently improves the data retrieval performance of the satellite network using NDN. The evaluation results show that the proposed scheme delivers about 65% and 7% higher retrieval hit rates than a retrieval scheme based on the original NDN proposal and a recently proposed scheme — CAP, respectively. In addition, comparing with these two schemes, the proposed one reduces transmission latency by about 20% and 15%, and traffic load by about 48% and 40%, all respectively. These imply that the proposed scheme outperforms in terms of higher data retrieval efficiency and better link utilization.

Content-Aware Delivery of Scalable Video in Network Coding Enabled Named Data Networks

We propose a novel network coding (NC) enabled named data networking (NDN) architecture for scalable video delivery. Our architecture utilizes NC in order to address the problem that arises in the original NDN architecture, where optimal use of the bandwidth and caching resources necessitates the coordination of the Interest forwarding decisions. To optimize the performance of the proposed NC-based NDN architecture and render it appropriate for transmission of scalable video, we devise a novel rate allocation algorithm that decides on the optimal rates of Interests sent by clients and intermediate nodes. The flow of Data packets achieved by this algorithm maximizes the average quality of the video delivered to the client population. To support the handling of Interest and Data packets when intermediate nodes perform NC, we introduce the use of Bloom filters, which store efficiently additional information about the Interest and Data packets, and modify accordingly the standard NDN architecture. We also devise an optimized Interest forwarding strategy that implements the target rate allocation. The proposed architecture is evaluated for transmission of scalable video over PlanetLab topologies. The evaluation shows that the proposed scheme exploits optimally the available network resources.

A producer mobility support scheme for real-time multimedia delivery in named data networking

Named Data Networking (NDN) is a network architecture for the Future Internet, and can cooperate with the Internet of Things (IoT) to tackle problems existing in the current IP/TCP network architecture. Its consumer-driven paradigm and generic cache could optimize content distribution performance. However, there are still some problems to be dealt with, including mobility support of the producer. This paper proposes a producer mobility support scheme in NDN specifically for real-time multimedia delivery scenarios to reduce handover delay and to improve consumer experience with bounded overhead. Complementary components are designed based on forwarding information bases and packets in the original NDN. In particular, we categorize scenarios into two types according to cache state, and handle them with different strategies. Results of numerical analysis show that our scheme outperforms the original NDN and some typical solutions on delay with bounded overhead.

Boosting named data networking for data dissemination in urban VANET scenarios

Named Data Networking (NDN) is a data-centric networking architecture designed for the future Internet. Instead of establishing host-based end-to-end communications, NDN accomplishes the content retrieval and distribution through the delivery of named data. In this paper, we boost the NDN architecture to support efficient content delivery in urban Vehicular Ad hoc Networks (VANETs). First we propose a new geo-based NDN forwarding strategy to achieve efficient and reliable packet delivery in urban VANET scenarios. Then we investigate the caching redundancy problem with the default full-path caching scheme in VANETs, and present some heuristic strategies to reduce the unnecessary cached copies. Simulation results show that our forwarding strategy can greatly enhance NDN for data dissemination in urban VANETs, which achieves 27%∼75% higher request success ratio, and 40%∼80% lower delay compared with the original NDN strategy in scenarios with different vehicle densities. Besides, the caching strategies can reduce the cached copies by about 50% in dense scenarios with nearly no drops in the success ratio and negligible increase in delay.

LBMA: A novel Locator Based Mobility support Approach in Named Data Networking

To enhance seamless source mobility support in the mobile NDN (Named Data Networking) environment, we propose a novel Locator Based Mobility support Approach, dubbed LBMA. In this approach, we assign a unique topologically layered locator to each AR (Access Route) in NDN network, and extend the AR with additional functionalities, such as caching and forwarding Interest packets on behalf of the source. Meanwhile, we add an optional field to the original NDN packet, and modify the Outgoing Interface(s) field in the AR's original FIB (Forwarding Information Base) entries, to record the mobility status and the current locator of the source. Specifically, the consumer in LBMA can continue the interrupted communication, without delivering Interest packets towards the old location of the source, nor waiting for all relevant devices completing the FIB entries updating. The performance analysis result indicates that LBMA has lower handoff cost and shorter handoff latency, compared with other existing source mobility support approaches.