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FPGAs offer high performance coupled with energy efficiency, making them extremely attractive computational resources within a cloud ecosystem. However, to achieve this integration and make them easy to program, we first need to enable users with varying expertise to easily develop cloud applications that leverage FPGAs. With the growing size of FPGAs, allocating them monolithically to users can be...
Dynamically adaptive systems respond to environmental conditions by modifying their processing at runtime, selecting alternative configurations of computation. While FPGAs with partial reconfiguration (PR) seem to offer an ideal platform for flexible hardware, designing such systems is difficult, and no standardised model and methodology exists. We present CoPR, a fully automated framework for implementing...
Dynamically adaptive systems (DAS) respond to environmental conditions, by modifying their processing at runtime and selecting alternative configurations of computation. Field programmable gate arrays, with their support for partial reconfiguration (PR) represent an ideal platform for implementing such systems. Designing partially reconfigurable systems has traditionally been a difficult task requiring...
Partial Reconfiguration (PR) is an advanced technique, which improves the flexibility of FPGAs by allowing portions of a design to be reconfigured at runtime by overwriting parts of the configuration memory. PR is an important enabler for implementing adaptive systems. However, the design of such systems can be challenging, and this is especially true of the configuration controller. The generally...
While partial reconfiguration on FPGAs has attracted significant research interest in recent years, designing systems that leverage it remains a specialist skill. Systems with a large number of reconfigurable modules can be challenging to design. Deciding on how many reconfigurable regions to use is not always straightforward, yet this choice impacts area efficiency and configuration latency. Current...
The focus of this paper is an experimentation platform known as Iris that has a runtime reconfigurable software radio at its core. We have employed this platform to enable a wide variety of tests and experimentation in the fields of dynamic spectrum access and cognitive radio. The paper charts the progress of the Iris system since its inception as well as details of some of the experiments and trials...
Iris is a software architecture for building highly reconfigurable radio networks. It has formed the basis for a wide range of dynamic spectrum access and cognitive radio demonstration systems presented at a number of international conferences between 2007 and 2010. These systems have been developed using heterogeneous processing platforms including general-purpose processors, field-programmable gate...
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