Modeling the Behavior of an Electronically Switchable Directional Antenna for Wireless Sensor Networks

摘要: Reducing power consumption is among the top concerns in Wireless Sensor Networks, as lifetime of a Network depends on its consumption. Directional antennas help achieve this goal contrary to commonly used omnidirectional antennas that radiate electromagnetic equally all directions, by concentrating the radiated only particular directions. This enables increased communication range at no additional energy cost and reduces contention wireless medium. The SPIDA (SICS Parasitic Interference Directional Antenna) prototype one the few real-world prototypes electronically switchable directional antennas for Wireless Sensor Networks. However, building several conducting real-world experiments using them may be expensive impractical. Modeling SPIDA based avoids expenses incurred enabling simulation of large networks equipped with SPIDA. Such model would then allow researchers to develop new algorithms protocols take advantage provided directional communication existing simulators. In thesis, Networks built based thoroughly designed experiments. The thesis builds probabilistic that accounts variations measurements, imperfections construction, and fluctuations experimental settings affect values measured metrics. The can integrated into simulators foster the research communication. The returns signal strength packet reception rate from node certain point space given two-dimensional distance coordinates configuration as inputs.