The Ring Buffer Network Bus (RBNB) DataTurbine Streaming Data Middleware for Environmental Observing Systems

Author(s):  
Sameer Tilak ◽  
Paul Hubbard ◽  
Matt Miller ◽  
Tony Fountain
2005 ◽  
Vol 39 (4) ◽  
pp. 48-55 ◽  
Author(s):  
Carrie McDougall ◽  
Atziri Ibanez ◽  
Susan White

The National Oceanic and Atmospheric Administration (NOAA) has significantly increased its commitment to promoting environmental literacy by adopting this effort as a strategic cross-cutting priority, forming an Office of Education and establishing an Education Council. Another of NOAA's strategic cross-cutting priorities is integrating global environmental observations and data management. NOAA possesses a vast array of observing systems that monitor oceanic, atmospheric, and terrestrial parameters. The streaming data from these systems offers broad opportunities to create real-time visualizations of dynamic Earth processes and to capture rare and spectacular events that occur on regional or global geographic scales. Making these visualizations available to and understandable by the general public is not an easy task. The potential return on investment however, is large. NOAA's Education Council realizes the educational potential that observing system data offer and has adopted Earth Observing Systems Education as a top priority. An effort is currently underway in NOAA to assess existing observing system education activities within and outside the Agency and to pilot education programs using the available streaming data. We will report on the process of assessment and on some of the pilot projects we have begun with a focus on a case study provided by the National Estuarine Research Reserve System (NERRS), a program that provides a fully operational network of integrated observing systems focused on the nation's estuaries.


Author(s):  
Yu.V. Andreyev ◽  
◽  
L.V. Kuzmin ◽  
M.G. Popov ◽  
A.I. Ryshov ◽  
...  

2019 ◽  
Vol 23 (1) ◽  
pp. 346-357
Author(s):  
Vithya G ◽  
Naren J ◽  
Varun V

2020 ◽  
Vol 24 (04) ◽  
pp. 3022-3033
Author(s):  
Christy Sujatha D ◽  
Gnana Jayanthi Dr.J

2019 ◽  
Vol 9 (12) ◽  
pp. 2560 ◽  
Author(s):  
Yunkon Kim ◽  
Eui-Nam Huh

This paper explores data caching as a key factor of edge computing. State-of-the-art research of data caching on edge nodes mainly considers reactive and proactive caching, and machine learning based caching, which could be a heavy task for edge nodes. However, edge nodes usually have relatively lower computing resources than cloud datacenters as those are geo-distributed from the administrator. Therefore, a caching algorithm should be lightweight for saving computing resources on edge nodes. In addition, the data caching should be agile because it has to support high-quality services on edge nodes. Accordingly, this paper proposes a lightweight, agile caching algorithm, EDCrammer (Efficient Data Crammer), which performs agile operations to control caching rate for streaming data by using the enhanced PID (Proportional-Integral-Differential) controller. Experimental results using this lightweight, agile caching algorithm show its significant value in each scenario. In four common scenarios, the desired cache utilization was reached in 1.1 s on average and then maintained within a 4–7% deviation. The cache hit ratio is about 96%, and the optimal cache capacity is around 1.5 MB. Thus, EDCrammer can help distribute the streaming data traffic to the edge nodes, mitigate the uplink load on the central cloud, and ultimately provide users with high-quality video services. We also hope that EDCrammer can improve overall service quality in 5G environment, Augmented Reality/Virtual Reality (AR/VR), Intelligent Transportation System (ITS), Internet of Things (IoT), etc.


2020 ◽  
Vol 62 (5-6) ◽  
pp. 287-293
Author(s):  
Felix Günther

AbstractSecure connections are at the heart of today’s Internet infrastructure, protecting the confidentiality, authenticity, and integrity of communication. Achieving these security goals is the responsibility of cryptographic schemes, more specifically two main building blocks of secure connections. First, a key exchange protocol is run to establish a shared secret key between two parties over a, potentially, insecure connection. Then, a secure channel protocol uses that shared key to securely transport the actual data to be exchanged. While security notions for classical designs of these components are well-established, recently developed and standardized major Internet security protocols like Google’s QUIC protocol and the Transport Layer Security (TLS) protocol version 1.3 introduce novel features for which supporting security theory is lacking.In my dissertation [20], which this article summarizes, I studied these novel and advanced design aspects, introducing enhanced security models and analyzing the security of deployed protocols. For key exchange protocols, my thesis introduces a new model for multi-stage key exchange to capture that recent designs for secure connections establish several cryptographic keys for various purposes and with differing levels of security. It further introduces a formalism for key confirmation, reflecting a long-established practical design criteria which however was lacking a comprehensive formal treatment so far. For secure channels, my thesis captures the cryptographic subtleties of streaming data transmission through a revised security model and approaches novel concepts to frequently update key material for enhanced security through a multi-key channel notion. These models are then applied to study (and confirm) the security of the QUIC and TLS 1.3 protocol designs.


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