Reduced order model node location method for multi-hop networks

Details Reduced order model node location method for multi-hop networks Reduced order model node location method for multi-hop networks

2007-10-02

2007-10-02

Vu, Huy D. (Department: 2616)

Multiplex communications

Network configuration determination

Using a particular learning algorithm or technique

C370S338000

Reexamination Certificate

active

10424178

ABSTRACT:
A method for locating nodes in a multi-hop sensor network forms a rigid body (RB1, RB2, RB3) and, from the nodes, utilizes the rigid body to decide if a node is locatable. The method obtains a reduced order model (ROM) of the network by categorizing all of the nodes by location status, grouping them based upon the categorizations, and defining and identifying a rigid body from a group. The method further simplifies determinability of node location by forming the rigid body from the nodes based upon the categorized location status. To locate the nodes, the nodes are separated from one another into subsets dependent upon characteristics (100). Then, groups are formed from one subset (200) and the rigid body is formed from a group (300). The ROM is formed from the rigid body (400) and a location capability of the rigid body is evaluated based upon the ROM (500).

REFERENCES:
patent: 6473038 (2002-10-01), Patwari et al.
patent: 7158078 (2007-01-01), Ninomiya et al.
patent: 2005/0233748 (2005-10-01), Robinson et al.
Albowicz, J. et al.: “Recursive Position Estimation in Sensor Networks”, UCLA Internet Research Laboratory, 2001, seven pages.
Koushanfar, F.: “Iterative Error-Tolerent Location Discovery in Ad-hoc Wireless Sensor Networks”, University of California, 2001, 101 pages.

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