Download e-book for kindle: Ambient Intelligence: Impact on Embedded System Design by Twan Basten, Marc Geilen, Harmke de Groot
By Twan Basten, Marc Geilen, Harmke de Groot
The rising Ambient Intelligence imaginative and prescient has the capability to essentially swap our global. This quantity is a preview into the following period of computing. It investigates the effect of Ambient Intelligence on embedded method layout. Combining visionary contributions with papers on contemporary advancements, it brings to gentle the demanding situations in procedure layout in the direction of pleasing the Ambient Intelligence promise. issues coated variety from processor architectures and embedded software program to cognitive robotics and sensor networks, and from quality-of-service and energy-efficient layout to defense and fault tolerance.
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Extra info for Ambient Intelligence: Impact on Embedded System Design
The limited scalability of this approach‚ as pointed out by various authors [18‚ 29‚ 3]‚ is apparent even from our brief analysis. Most of the performance enhancement features adopted in Itanium are already in the region of diminishing returns: there is a growing disproportion between the number of transistors (and power consumption) dedicated to computation and those dedicated to storage and communication. Furthermore‚ even though huge on-chip caches and very high performance I/O circuits can ease the latency and throughput bottlenecks‚ there is limited parallelism left to be exploited in single instruction stream.
These unique characteristics contribute to making high performance microprocessor the drivers for advances in technology and circuits‚ which then percolate to less aggressive designs. Performance is by far the most important design metric for this class of architectures. g. SpecINT and SpecFP) are now routinely used. A fairly weak performance indicator which still has high marketing value is clock speed. State-of-the-art general purpose processors in 2003 are indeed clocked at frequencies exceeding by a significant amount the 2GHz mark.
On system level a trade-off has to be made between the increased amount of compression of the A/V/data stream with related power dissipation and the reduced data rate of the communication link. Natural Interfaces in the Watt Node Figure 9 shows the Watt node for natural interfaces. The natural interfaces requires the extraction and of information from various information streams (audio and video signals) and setting up an intelligent dialogue with the user. The information input streams are received from milliWatt nodes.
Ambient Intelligence: Impact on Embedded System Design by Twan Basten, Marc Geilen, Harmke de Groot