Method and apparatus for correcting multipath offset and determining wireless station locations
Embodiments include methods, systems and computer readable storage medium for determining a location for one or more wireless stations or access points. The method includes receiving, by a processor, trace data from one or more vehicles. The method further includes performing, by the processor, a particle filtering analysis on the trace data. The method further includes determining, by the processor, a location for the one or more wireless stations or access points.
1. A method for determining a location for one or more wireless stations or access points, the method comprising:
receiving, by a processor, trace data from one or more vehicles;
performing, by the processor, a particle filtering analysis on the trace data; and
determining, by the processor, the location for the one or more wireless stations or access points,
wherein the particle filtering analysis comprises:
generating or re-regenerating samples from the trace data;
calculating and associating a weight with each of the samples; and
iterating the generating or re-regenerating or the samples and the calculating and associating of the weight until a probability distribution of the samples is obtained.
2. The method of claim 1 further comprising determining a location of one or more vehicles using the location for the one or more wireless stations or access points.
3. The method of claim 1 , wherein the weight calculation comprises a multipath mitigation determination.
4. The method of claim 3 , wherein the multipath mitigation determination is based on Channel State Information.
5. The method of claim 3 , wherein the multipath mitigation determination is based on a received signal strength indication.
6. The method of claim 5 , wherein the received signal strength indication is used to infer line of sight conditions.
7. A system for determining a location for one or more wireless stations or access points, the system comprising:
one or more vehicles, each comprising:
a first memory, and
a first processor coupled to the first memory; and
one or more cloud computers, each comprising:
a second memory, and
a second processor coupled to the second memory;
wherein each second processor is operable to perform:
receiving trace data from the one or more vehicles;
performing a particle filtering analysis on the trace data; and
determining the location for the one or more wireless stations or access points,
wherein the particle filtering analysis comprises:
generating or re-regenerating samples from the trace data;
calculating and associating a weight with each of the samples; and
iterating the generating or re-regenerating or the samples and the calculating and associating of the weight until a probability distribution of the samples is obtained.
8. The system of claim 7 , wherein each second processor is operable to determine a location of one or more vehicles using the location for the one or more wireless stations or access points.
9. The system of claim 7 , wherein the weight calculation comprises a multipath mitigation determination.
10. The system of claim 9 , wherein the multipath mitigation determination is based on Channel State Information.
11. The system of claim 9 , wherein the multipath mitigation determination is based on a received signal strength indication.
12. The system of claim 11 , wherein the received signal strength indication is used to infer line of sight conditions.
13. A non-transitory computer readable storage medium having program instructions for determining a location for one or more wireless stations or access points embodied therewith, the program instructions readable by a processor to cause the processor to perform:
receiving trace data from one or more vehicles;
performing a particle filtering analysis on the trace data; and
determining the location for the one or more wireless stations or access points,
wherein the particle filtering analysis comprises:
generating or re-regenerating samples from the trace data;
calculating and associating a weight with each of the samples; and
iterating the generating or re-regenerating or the samples and the calculating and associating of the weight until a probability distribution of the samples is obtained.
14. The computer readable storage medium of claim 13 , wherein the program instructions readable by the processor to cause the processor to determine a location of one or more vehicles using the location for the one or more wireless stations or access points.
15. The computer readable storage medium of claim 13 , wherein the weight calculation comprises a multipath mitigation determination.
16. The computer readable storage medium of claim 15 , wherein the multipath mitigation determination is based on Channel State Information.
17. The computer readable storage medium of claim 15 , wherein the multipath mitigation determination is based on a received signal strength indication.