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The purpose of TAFT fault tolerance studies conducted at CNES is to prepare the space community for the significant evolution linked to the usage of COTS components for developing spacecraft supercomputers. CNES has patented the DMT and DT2 fault-tolerant architectures with 'light' features. The development of a DMT/DT2 testbench based on a PowerPC7448 microprocessor from e2v is presented in this...
The Niagara2 CMT system-on-chip incorporates many design-for-test features to achieve high test coverage for both arrays and logic. All the arrays are tested using memory built-in-self-test. This is supplemented with scan-based testing. Logic is tested with standard ATPG for slow-speed defects and extensive use of transition test, along with logic built-in-self-test for the SPARC cores, for at-speed...
This paper explores the attributes, layering models and objective functions in cross layer designs for mobile ad hoc wireless networks by taking all the statistical characteristics and constraints from the physical (PHY) layer, media access control (MAC) layer and network (NET) layer into consideration. This paper reviews the entire network optimization across all the PHY/MAC/NET layers. At the PHY...
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