End-to-End Reservation Services in Real-Time Mach

2001 ◽  
Author(s):  
Raj Rajkumar ◽  
K. Juvva ◽  
A. Molano ◽  
S. Oikawa ◽  
C. Lee
Keyword(s):  
Real Time ◽  
End To End

Effective Model for Real Time End to End Secure Communication Over GSM Voice Channel

2021 ◽  
Author(s):  
Mobeen Ur Rehman ◽  
Muhammad Adnan ◽  
Mouazma Batool ◽  
Liaqat Ali Khan ◽  
Ammar Masood
Keyword(s):  
Real Time ◽  
Secure Communication ◽  
Effective Model ◽  
End To End

Adaptive Monitor Placement for Near Real-time Node Failure Localisation in Wireless Sensor Networks

2022 ◽  
Vol 18 (1) ◽  
pp. 1-41
Author(s):  
Pamela Bezerra ◽  
Po-Yu Chen ◽  
Julie A. McCann ◽  
Weiren Yu
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Real Time ◽  
State Of The Art ◽  
Global Analysis ◽  
Wireless Sensor ◽  
Greedy Heuristics ◽  
Network Tomography ◽  
Topology Changes ◽  
End To End

As sensor-based networks become more prevalent, scaling to unmanageable numbers or deployed in difficult to reach areas, real-time failure localisation is becoming essential for continued operation. Network tomography, a system and application-independent approach, has been successful in localising complex failures (i.e., observable by end-to-end global analysis) in traditional networks. Applying network tomography to wireless sensor networks (WSNs), however, is challenging. First, WSN topology changes due to environmental interactions (e.g., interference). Additionally, the selection of devices for running network monitoring processes (monitors) is an NP-hard problem. Monitors observe end-to-end in-network properties to identify failures, with their placement impacting the number of identifiable failures. Since monitoring consumes more in-node resources, it is essential to minimise their number while maintaining network tomography’s effectiveness. Unfortunately, state-of-the-art solutions solve this optimisation problem using time-consuming greedy heuristics. In this article, we propose two solutions for efficiently applying Network Tomography in WSNs: a graph compression scheme, enabling faster monitor placement by reducing the number of edges in the network, and an adaptive monitor placement algorithm for recovering the monitor placement given topology changes. The experiments show that our solution is at least 1,000× faster than the state-of-the-art approaches and efficiently copes with topology variations in large-scale WSNs.

The South Carolina Digital Watershed: End-to-End Support for Real-Time Management of Water Resources

2010 ◽  
Vol 6 (1) ◽  
pp. 970868 ◽  
Author(s):  
G. W. Eidson ◽  
S. T. Esswein ◽  
J. B. Gemmill ◽  
J. O. Hallstrom ◽  
T. R. Howard ◽  
...  
Keyword(s):  
South Carolina ◽  
Water Resources ◽  
Real Time ◽  
Time Management ◽  
State Level ◽  
Data Streaming ◽  
The South ◽  
Core System ◽  
End To End

Water resources are under unprecedented strain. The combined effects of population growth, climate change, and rural industrialization have led to greater demand for an increasingly scarce resource. Ensuring that communities have adequate access to water—an essential requirement for community health and prosperity—requires finegrained management policies based on real-time in situ data, both environmental and hydrological. To address this requirement at the state level, we have developed the South Carolina Digital Watershed, an end-to-end system for monitoring water resources. In this paper, we describe the design and implementation of the core system components: (i) in situ sensing hardware, (ii) collection and uplink facilities, (iii) data streaming middleware, and (iv) back-end repository and presentation services. We conclude by discussing key organizational and technical challenges encountered during the development process.

scholarly journals Predictive flow control for TCP-friendly end-to-end real-time video on the Internet

2002 ◽  
Vol 25 (13) ◽  
pp. 1230-1242 ◽  
Author(s):  
Yeali S. Sun ◽  
Fu-Ming Tsou ◽  
Meng Chang Chen
Keyword(s):  
Flow Control ◽  
Real Time ◽  
The Internet ◽  
Tcp Friendly ◽  
End To End
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