the cougar approach to innetwork query processing in sensor

The cougar approach to in-network query processing in ...

Second, conservation of battery power is a major design factor, but a central system cannot make use of in-network programming, which trades costly communication for cheap local computation.In this paper, we introduce the Cougar approach to tasking sensor networks through declarative queries.

The Cougar Approach On In-Network Query Processing …

Why in-network processing? Sensor networks are power constrained. Local computation is much cheaper than communication. A lot of sensor data but few queries, and only a subset of data is involved in queries In-network processing provides a trade-off between computation and communication. Cougar prolongs the lifetime of sensor networks through ...

The Cougar Approach to InNetwork Query Processing in ...

The Cougar Approach to InNetwork Query Processing in Sensor Networks By Yong Yao and Johannes Gehrke - The Cougar Approach to In-Network Query Processing in Sensor Networks ... Cougar is one possible architecture for a sensor network.

The Cougar Approach to In-Network Query Processing in ...

We present an update on the status of the Cougar Sensor Database Project, in which we are investigating a database approach to sensor networks: Clients "program" the sensors through queries in a ...

The Cougar approach to in-network query processing in ...

Existing sensor net-works assume that the sensors are preprogrammed and send data to a central frontend where the data is aggregated and stored for offline querying and anal-ysis. This approach has two major drawbacks.

The cougar approach to in-network query processing in ...

Overall, the routing techniques are classified into three categories based on the underlying network structure: flat, hierarchical, and location-based routing. Furthermore, these protocols can be classified into multipath-based, query-based, negotiation-based, QoS-based, and coherent-based depending on the protocol operation.

2 Y Yao and J Gehrke The COUGAR approach to in network ...

2 Y Yao and J Gehrke The COUGAR approach to in network query processing in from CSE 2208 at Anna University Chennai - Regional Office, Coimbatore ... 2 y yao and j gehrke the cougar approach to in ... “The COUGAR approach to in-network query processing in sensor networks, ...

Cornell Database Group - Cougar

Query Processing in Sensor Networks. In Proceedings of the First Biennial Conference on Innovative Data Systems Research (CIDR 2003). Asilomar, California, January 2003. Yong Yao, J. E. Gehrke . The Cougar Approach to In-Network Query Processing in Sensor Networks.

The Cougar Approach to In-Network Query Processing in ...

This approach has two major drawbacks. First, the user cannot change the behavior of the system on the fly. Second, conservation of battery power is a major design factor, but a central system cannot make use of in-network programming, which trades costly communication for cheap local computation.

Query Processing for Sensor Networks - infolab.usc.edu

to ensure that the query processing layer is tightly in-tegrated with the networking layer. Second, the notion of the cost of a query plan has changed, as the critical resource in a sensor network is power, and query opti-mization and query processing have to be adapted to …

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