In this paper, we describe a software-based MPEG4 video encoder which is implemented using parallel processing on a cluster of workstations collectively working as a virtual machine. The contributions of our work are as follows. First, a hierarchical Petri-nets-based modeling methodology is proposed to capture the spatiotemporal relationships among multiple objects at different levels of an MPE...

A software-defined radio consists of a programmable communication system where functional changes can be made by merely updating software. In this paper, a software-defined radio 4-QAM (Quadrature Amplitude Modulation) modem system is implemented in LabVIEW. LabVIEW is a widely used graphical programming environment which allows designing systems in an intuitive block-based manner in shorter ti...

We conclude this series with a description of a dc-60 MHz transceiver that will allow open-software experimentation with software defined radios. I t has been a pleasure to receive feedback from so many QEX readers that they have been inspired to experiment with software-defined radios (SDRs) through this article series. SDRs truly offer opportunities to reinvigorate experimentation in the serv...

Rapid growth in a number of vehicles on roadways accelerates pavement deterioration trends. Pavement inefficiency in carrying the applied load from passing vehicles results in spending significant costs on continues Maintenance and Rehabilitation (M&R) treatments. Lane closure owing to the implementation of M&R operations incurs enormous costs on road users. The research aimed to calculate, and...

Seong-Min Kim et al. 489 This paper presents an MPEG-4 video codec, called MoVa, for video coding applications that adopts 3G-324M. We designed MoVa to be optimal by embedding a costeffective ARM7TDMI core and partitioning it into hardwired blocks and firmware blocks to provide a reasonable tradeoff between computational requirements, power consumption, and programmability. Typical hardwired bl...

for an invited paper at the December, 1996 Conference of the International Software Consulting Network Brighton, U.K. From the time the Capability Maturity Model (CMM) was developed (late ‘80s, early ‘90s), it was a matter of speculation whether software organizations existed or would be assessed at the higher maturity levels, levels 4 and 5. In the last two years, a few organizations with proc...

A formal procedure for managing maintenance activities opens a window of opportunity for the IS manager to consider systems as candidates for reverse engineering, reengineering, and restructuring. This article outlines a software maintenance methodology. It discusses development techniques (e.g., the use of CASE tools and standard data definitions) that help to ensure software maintainability a...

Goals, and technical approach of the project. EMPHASIS started in October 1995 and was successfully completed in October 1998. The partners were SGS-Thomson Microelectronics (UK) which was co-ordinator during the first two years of the project, SRF/PACT (UK), CSELT (Italy), HHI (Germany), University of Hannover (Germany), EPFL (Switzerland), FZI (Germany), ENST (France), CNET (France), Studer P...