| Publisher | Association for Computing Machinery | ||
|---|---|---|---|
| Format | 555.4KB PDF | Date added | 25 Dec 2005 |
| Topics | Monitoring Systems, Bridges, Mobile - Wireless Communications | ||
| Downloads | 31 | ||
This paper investigates the impact of radio irregularity on wireless sensor networks. Radio irregularity is a common phenomenon which arises from multiple factors, such as variance in RF sending power and different path losses depending on the direction of propagation. From the experiments, the paper discovers that the variance in received signal strength is largely random; however, it exhibits a continuous change with incremental changes in direction. With empirical data obtained from the MICA2 and MICAZ platforms, the paper establishes a radio model for simulation, called the Radio Irregularity Model (RIM). This model is the first to bridge the discrepancy between spherical radio models used by simulators and the physical reality of radio signals.
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