Queued-Stack Dataflow Processing Element for a Cognitive Sensor Platform

A DTN Stack for Cognitive Radio Networks

In this paper, we evaluate over a software defined radio testbed the performance of a DTN implementation in cognitive radio networks. Our experimental platform uses USRP devices operated by the GNU radio platform for physical and MAC layers operations. Over the deployed software archietcture, we have compared 2 existing DTN implementations then run a set of expirements in order to chatacterize ...

Compiling Dataflow Programs for Digital Signal Processing

∆-dataflow Networks for Event Stream Processing

We present a design of a new class of dataflow-like networks suitable for detecting complex conditions in systems in which parameters change rapidly. Such networks are helpful for detecting conditions that signal threats or opportunities in areas such as logistics, finance, and public health. Examples of such applications are detection of money laundering, epidemics, and unauthorized intrusion ...

Flexible Scheduling for DataFlow Audio Processing

The notions of audio and control rate have been a pervasive feature of audio programming languages and environments. Real-time computer music systems depend on schedulers to coordinate and order the execution of many tasks over the course of time. In this paper we describe the scheduling infrastructure of Marsyas-0.2, an open source framework for audio analysis and synthesis. We describe how to...

LRU Stack Processing

Stack processing, and in particular stack processing for the least recently used replacement algorithms, may present computational problems when it is applied to a sequence of page references with many different pages. This paper describes a new technique for LRU stack processing that permits efficient processing of these sequences. An analysis of the algorithm and a comparison of its running t...