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Energy-efficiency is becoming one of the most critical issues in embedded system design. In Network-on-Chip (NoC) based heterogeneous Multiprocessor Systems, the energy consumption is influenced dramatically by task allocation schemes. Although various approaches are proposed to allocate tasks in an energy-efficient way, existing work does not well explore the tradeoff between the two major power...
With the advance of semiconductor, multi-core architecture is inevitable in today's embedded system design. Nested loops are usually the most critical part in multimedia and high performance DSP (Digital Signal Processing) systems. Hence, maximizing loop parallelism is an important issue to improve the performance of a modern compiler. This paper studies how to maximize the system performance with...
This paper suggests a new approach for bitstream processing of embedded systems, using a combination of C++ metaprogramming combined with architecture extensions of an customizable embedded processor. Firstly, by using C++ metaprogramming techniques, we are able to code application software that needs to manipulate bitstreams in a very compact manner. Secondly, by using the architecture extensions...
Wear-out related permanent faults are projected to make system lifetime a critical issue for all designs. In embedded systems, lifetime can be increased using slack, underutilization in execution and storage resources, so that when components fail, data and tasks can be re-mapped and re-scheduled. The design space of possible slack allocation is both large and complex. However, based on the observation...
Schedulability of distributed real-time applications has been an intensive research topic in the last years as embedded devices have become more and more powerful in terms of computing power, memory and communication resources. Many solutions have been proposed, yet no one has achieved sufficient relevance. This paper describes a novel framework for distributed real-time embedded systems scheduling...
As implementation architectures for complex systems evolve towards heterogeneous multiprocessing, let this be on a single chip or on a geographically distributed area, the importance of communication has reached unprecedented peaks. Indeed, due to the complex nature of interaction among its components, any complex system has behaviors that may be highly unpredictable. Dealing with such behaviors requires...
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