Abstract-Wireless integrated sensor networks have emerged as a promising infrastructure for a new generation of monitoring and tracking applications. In order to efficiently utilize the extremely limted resources of wireless sensor nodes, accurate modeling of the key aspects of wireless sensor networks is necessary so that system-level design decisions can be made about the hardware and the software (applications and real-time operating system) architecture of sensor nodes. In this paper, E we present a SystemC-based abstract modeling framework that enables system-level modeling of sensor network behavior by B modeling the applications, real-time operating system, sensors, processor, and radio transceiver at the sensor node level and environmental phenomena, including radio signal propagation, S C at the sensor network level. We demonstrate the potential of our modeling framework by simulating and analyzing a small sensor I. INTRODUCTION Wireless sensor networks have emerged as a promising infrastructure for a new generation of monitoring applications. Owing to their small form-factors, ad-hoc deployment, and extended periods of unattended operation requirements, these wireless sensor networks form an extremely resource-and energy-constrained sensing, computing, and communication environment which makes the design and optimization ofthese systems a challenging task. In particular, the design of the sensor nodes requires a deep understanding of their various constituent components, their underlying technologies and the interactions between those components. Figure 1 shows the elements of a wireless sensor node and its hardware and software partitioning. In order to be able to explore the design space at very early stages in the design process, it is important to have an accurate system-level model of the sensor network capturing all the inter-relationships among the diverse processors, software processes and radio-and sensor interfaces. In this paper, we present an extension of our earlier work on SystemCbased multiprocessor SoC modeling framework [1] which can provide the wireless sensor network designers a system-level abstraction of the sensor network for system-level designspace exploration to meet the requirements mentioned abovel.
An exception of the above is REF the sensor node (including peripherals and software tasks) and sensor network by using finite state machines.
System-level Modeling of Wireless Integrated Sensor Networks
2005 International Symposium on System-on-Chip
2005 International Symposium on System-on-Chip
Computer Science