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FlexCRM Project

SDR presents a hard real-time computing challenge with varying (computing) system conditions. The computing resource management framework thus needs to track the states of the computing resources and allocate or reallocate them as needed.

An SDR processing chain (SDR application or waveform) is the part of an SDR transceiver that is implemented in software. It represents a set of processes that process and propagate real-time data. An automatic mapping process dynamically assigns these processes and their data flows to hardware resources, while ensuring that all real-time computing system constraints are met. The computing resource management framework is split into the computing system modeling and the computing resource management (Figure 1). Figure 2 shows ALOE's time management principle. The pipelined execution pattern facilitates synchronizing the distributed execution of the waveform modules.

The framework offers general-purpose mapping algorithms and a customizable cost function (FlexCRM_July11). The cost function implements the computing resource management objective and guides the mapping process under the given computing constraints. CRM tools permit executing the computing resource management framework from Matlab. ALOE Sessions 7 and 8 introduce the framework and its tools.

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