A novel approach to system-level fault tolerance in hypercube multiprocessors

1988 ◽  
Author(s):  
P. Banerjee ◽  
C. B. Stunkel
Keyword(s):  
Fault Tolerance ◽  
System Level ◽  
Novel Approach

scholarly journals Automated Testing of Ultrawideband Positioning for Autonomous Driving

2020 ◽  
Vol 2020 ◽  
pp. 1-15
Author(s):  
Benjamin Vedder ◽  
Bo Joel Svensson ◽  
Jonny Vinter ◽  
Magnus Jonsson
Keyword(s):  
Fault Tolerance ◽  
Real Time ◽  
Autonomous Vehicles ◽  
Fault Injection ◽  
Autonomous Driving ◽  
Automated Testing ◽  
Test Cases ◽  
Positioning System ◽  
Novel Approach ◽  
Driving Model

Autonomous vehicles need accurate and dependable positioning, and these systems need to be tested extensively. We have evaluated positioning based on ultrawideband (UWB) ranging with our self-driving model car using a highly automated approach. Random drivable trajectories were generated, while the UWB position was compared against the Real-Time Kinematic Satellite Navigation (RTK-SN) positioning system which our model car also is equipped with. Fault injection was used to study the fault tolerance of the UWB positioning system. Addressed challenges are automatically generating test cases for real-time hardware, restoring the state between tests, and maintaining safety by preventing collisions. We were able to automatically generate and carry out hundreds of experiments on the model car in real time and rerun them consistently with and without fault injection enabled. Thereby, we demonstrate one novel approach to perform automated testing on complex real-time hardware.

scholarly journals Non-intrusive System Level Fault-Tolerance

2005 ◽  
pp. 156-166 ◽  
Author(s):  
Kristina Lundqvist ◽  
Jayakanth Srinivasan ◽  
Sébastien Gorelov
Keyword(s):  
Fault Tolerance ◽  
System Level

scholarly journals Microstructural and Functional Gradients are Increasingly Dissociated in Transmodal Cortices

2018 ◽  
Author(s):  
Casey Paquola ◽  
Reinder Vos De Wael ◽  
Konrad Wagstyl ◽  
Richard A.I. Bethlehem ◽  
Seok-Jun Hong ◽  
...  
Keyword(s):  
System Level ◽  
Human Cognition ◽  
Neural Function ◽  
Structural Constraints ◽  
Primate Research ◽  
Novel Approach ◽  
Novel Method ◽  
And Function ◽  
The Relationship

SummaryWhile the role of cortical microstructure in organising neural function is well established, it remains unclear how structural constraints can give rise to more flexible elements of cognition. While non-human primate research has demonstrated a close structure-function correspondence, the relationship between microstructure and function remains poorly understood in humans, in part because of the reliance onpost mortemanalyses which cannot be directly related to functional data. To overcome this barrier, we developed a novel approach to model the similarity of microstructural profiles sampled in the direction of cortical columns. Our approach was initially formulated based on an ultra-high-resolution 3D histological reconstruction of an entire human brain and then translated to myelin-sensitive MRI data in a large cohort of healthy adults. This novel method identified a system-level gradient of microstructural differentiation traversing from primary sensory to limbic regions that followed shifts in laminar differentiation and cytoarchitectural complexity. Importantly, while microstructural and functional gradients described a similar hierarchy, they became increasingly dissociated in transmodal default mode and fronto-parietal networks. Meta analytic decoding of these topographic dissociations highlighted involvement in higher-level aspects of cognition such as cognitive control and social cognition. Our findings demonstrate a relative decoupling of macroscale functional from microstructural gradients in transmodal regions, which likely contributes to the flexible role these regions play in human cognition.

scholarly journals AN EFFICIENT FAULT TOLERANT SYSTEM USING IMPROVED CLUSTERING IN WIRELESS SENSOR NETWORKS

2013 ◽  
pp. 8-13
Author(s):  
VENKATESH S
Keyword(s):  
Wireless Sensor Networks ◽  
Energy Consumption ◽  
Fault Tolerance ◽  
Sensor Networks ◽  
Fault Tolerant ◽  
Cluster Head ◽  
Residual Energy ◽  
Previous Method ◽  
Wireless Sensor ◽  
Novel Approach

In Wireless Sensor Networks (WSNs), Efficient clustering is key for optimal use of available nodes. Fault tolerance to any failure on the network or node level is an essential requirement in this context. Hence, a novel approach towards clustering and multiple object tracking in WSNs is being explored. The Proposed method employs judicious mix of burdening all available nodes including GH (Group Head) to earn energy efficiency and fault tolerance. Initially, node with the maximum residual energy in a cluster becomes group head and node with the second maximum residual energy becomes altruist node, but not mandatory. Later on, selection of cluster head will be based on available residual energy. We use Matlab software as simulation platform to check energy consumption at cluster by evaluation of proposed algorithm. Eventually we evaluated and compare this proposed method against previous method and we demonstrate our model is better optimization than other method such as Traditional clustering in energy consumption rate.

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