Any how GPS is successful in locating remote object, still localization in wireless sensor is becoming important now a days. why?
Some reasons off the top of my head:
- GPS sensors are additional cost, WSN motes should be as small, energy-efficient and cheap as possible
- Indoor or underground settings with no GPS connectivity
- maybe the accuracy of GPS is not high enough for some applications or it is too slow to acquire a position (?)
Some reasons off the top of my head:
- GPS sensors are additional cost, WSN motes should be as small, energy-efficient and cheap as possible
- Indoor or underground settings with no GPS connectivity
- maybe the accuracy of GPS is not high enough for some applications or it is too slow to acquire a position (?)
You have also to consider that most of the localization algorithms in WSN are GPS-aided.
GPS may fail to exactly determine the position in certain conditions. For example due to multipath in area with buildings where line of sight might not exist to satellites. Even in mobile networks assisted GPS (AGPS) is localization with the help of ground base stations. Thanks. @AlDmour.
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