Abstract:

In wide variety applications of the wireless sensor network applications,the sensor node location information has important value,most of localization algorithm based on the anchor node,and anchor node mostly adopts the omni-directional antenna technology,although this method increases convenience of the algorithm designing,but because of its inherent physical deficiency also causes localization effect is not ideal.After fully analysed the existing antenna technology,proposed an environment and distributed localization algorithm based on the directional antenna,and then used laboratory equipment to build experimental environment,the proposed localization algorithm was verified by the experiment,the results show that the designed algorithm has high precision and application value.

Key words: wireless sensor network, direction antenna, range, energy efficient, distributed