Method and apparatus for control and routing of wireless sensor networks

Overview

Information

Number
7304976
Application
11/045287
Filing date
01/31/2005
Issue date
12/04/2007
Inventor(s)
Shiwen Mao, Yiwei T. Hou
US Classification
340/870.11; 370/315; 370/338; 370/352; 455/445; 455/562.1
View at USPTO

Citations

Google (1)

Abstract

Abstract

A scalable, minimum node complexity, energy efficient, and error-resilient routing method for wireless sensor networks is described. The network is partitioned into regions by power controlled base station scans using a directional antenna. Routing is performed using only local location information and instructions received from the base station at each sensor node with minimum processing and control overhead, thus allowing simple, low-cost sensor designs. Sensors in the network provide to a base station reports of the condition of the sensors themselves, and these reports are analyzed by the base station to determine improved routing instructions, which are then provided to the sensor nodes in control messages. Each data packet is relayed in an interleaved, loop-free mesh of sectors toward the base station, making data delivery robust to sensor failures and transmission errors. The disclosure also contains descriptions for simple edge-based tasking, query, code distribution, and network programming for sensor nodes. The method is suitable for large-scale, dense sensor networks for detection, alarming, and monitoring applications.

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Tech Analysis

Class Subclass Type Reference Factor Citation Factor Strength Grant time Early grant (%)
340 870.11 Stable Novel Average Medium Average 56.4
370 315 Emerging Average Seminal Medium High Average 26.4
370 338 Emerging Novel Seminal High Rapid 23.8
370 352 Emerging Novel Seminal High Average 26.6
455 445 Emerging Novel Seminal High Average 41.4
455 562.1 Emerging Novel Seminal High Average 42.3