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In out-of-order (OoO) processors, speculative execution with high branch prediction accuracy is employed to achieve good single thread performance. In these processors the branch prediction unit tables (BPU) are accessed in parallel with the instruction cache before it is known whether a fetch group contains branch instructions. For integer applications, we find 85 percent of BPU lookups are done...
Localization in wireless sensor networks is an important functionality that is required for tracking personnel and assets in industrial environments, especially for emergency response. Current commercial localization systems such as GPS suffer from the limitations of either high cost or low availability in many situations (e.g., in-door environments that exclude direct line-of-sight signal reception)...
WirelessHART is an emerging wireless communication standard that is targeted at the real-time process control industry.An example application of wireless communication in an industrial process control plant is the location of field engineers. The capability to locate personnel is a safety critical issue in process control plants because of high risks posed by toxic chemicals and other hazards. This...
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